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As filed with the Securities and Exchange Commission on August 24, 2015

Registration No. 333-            

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-4

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

GULFPORT ENERGY CORPORATION

(Exact name of Registrant as Specified in Its Charter)

14313 North May Avenue, Suite 100

Oklahoma City, Oklahoma 73134

(405) 848-8807

(Address, Including Zip Code, and Telephone Number, Including Area Code, of Registrant’s Principal Executive Offices)

Aaron M. Gaydosik

Vice President and Chief Financial Officer

14313 North May Avenue, Suite 100

Oklahoma City, Oklahoma 73134

(405) 848-8807

(Name, Address, Including Zip Code, and Telephone Number, Including Area Code, of Agent for Service)

Copies to:

Seth R. Molay, P.C.

Akin Gump Strauss Hauer & Feld LLP

1700 Pacific Avenue, Suite 4100

Dallas, Texas 75201

(214) 969-2800

Approximate date of commencement of proposed sale to the public:

As soon as practicable on or after the effective date of this Registration Statement.

If the securities being registered on this form are being offered in connection with the formation of a holding company and there is compliance with General Instruction G, check the following box.  ¨

If this form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  ¨

If this form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

If applicable, place an X in the box to designate the appropriate rule provision relied upon in conducting this transaction:

Exchange Act Rule 13e-4(i) (Cross-Border Issue Tender Offer)  ¨

Exchange Act Rule 14d-1(d) (Cross-Border Third-Party Tender Offer)  ¨

CALCULATION OF REGISTRATION FEE

Each registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933, as amended, or until this registration statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.

TABLE OF ADDITIONAL REGISTRANT GUARANTORS

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The information in this prospectus is not complete and may be changed. We may not exchange these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities and is not soliciting an offer to buy these securities in any state where the offer or sale is not permitted.

SUBJECT TO COMPLETION, DATED AUGUST 24, 2015

PRELIMINARY PROSPECTUS

GULFPORT ENERGY CORPORATION

Offer to Exchange up to $350,000,000 of

Outstanding 6.625% Senior Notes due 2023

for

up to $350,000,000 of

6.625% Senior Notes due 2023

that have been registered

under the Securities Act of 1933, as amended

The exchange offer will expire at midnight, New York City Time, on                     , 2015, unless we extend the exchange offer. We do not currently intend to extend the exchange offer.

We are offering to exchange up to $350.0 million aggregate principal amount of our 6.625% Senior Notes due 2023, or the Exchange Notes, which have been registered under the Securities Act of 1933, as amended, or the Securities Act, for an equal principal amount of our outstanding 6.625% Senior Notes due 2023, or the 2015 Notes, issued in a private offering on April 21, 2015. The 2015 Notes were issued under an indenture, dated April 21, 2015, which, as may be amended or supplemented from time to time, we refer to as the Indenture, among us, certain subsidiaries party thereto and Wells Fargo Bank, N.A., as trustee. The 2015 Notes and the Exchanges Notes are collectively referred to herein as the Notes.

We will exchange all 2015 Notes that are validly tendered and not validly withdrawn prior to the closing of the exchange offer for an equal principal amount of the Exchange Notes that have been registered.

You may withdraw tenders of the 2015 Notes at any time prior to the expiration of the exchange offer.

The terms of the Exchange Notes to be issued are identical in all material respects to the terms of the 2015 Notes, except for transfer restrictions and registration rights that do not apply to the Exchange Notes, and different administrative terms.

The Exchange Notes, together with any 2015 Notes not exchanged in the exchange offer, will constitute a single class of debt securities under the Indenture.

The exchange of the 2015 Notes will not be a taxable exchange for United States federal income tax purposes.

We will not receive any proceeds from the exchange offer.

The Exchange Notes will not be listed on any securities exchange or included in any automated quotation system. The initial purchasers have advised us that they have been making a market in the 2015 Notes and intend to continue to make a market in such notes and, when issued, the Exchange Notes. The initial purchasers are not obligated, however, to do so, and any such market making may be discontinued by the initial purchasers in their discretion at any time without notice. Accordingly, we cannot assure you that a liquid market for the Exchange Notes will develop or be maintained.

See “Risk Factors” beginning on page 10 for a discussion of factors that you should consider before tendering your 2015 Notes.

Each broker-dealer that receives any Exchange Notes for its own account pursuant to the exchange offer must acknowledge that it will deliver a prospectus in connection with any resale of such Exchange Notes. The related letter of transmittal states that by so acknowledging and by delivering a prospectus, a broker-dealer will not be deemed to admit that it is an “underwriter” within the meaning of the Securities Act. This prospectus, as it may be amended or supplemented from time to time, may be used by a broker-dealer in connection with resales of the Exchange Notes received in exchange for the 2015 Notes where such 2015 Notes were acquired by such broker-dealer as a result of market-making activities or other trading activities. We have agreed that, for a period of 180 days after the effective date of the registration statement of which this prospectus forms a part, we will make this prospectus available to any broker-dealer for use in connection with any such resale. See “Plan of Distribution.”

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.

The date of this prospectus is                     , 2015.

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This prospectus is part of a registration statement we filed with the Securities and Exchange Commission. In making your investment decision, you should rely only on the information contained or incorporated by reference into this prospectus and in the accompanying letter of transmittal. We have not authorized anyone to provide you with any other information. We are not making an offer to sell these securities or soliciting an offer to buy these securities in any jurisdiction where an offer or solicitation is not authorized or in which the person making that offer or solicitation is not qualified to do so or to anyone whom it is unlawful to make an offer or solicitation. You should not assume that the information contained in this prospectus, as well as the information we previously filed with the Securities and Exchange Commission that is incorporated by reference herein, is accurate as of any date other than its respective date.

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This prospectus incorporates by reference important business and financial information about us that is not included or delivered with this prospectus. Copies of this information are available without charge to any person to whom this prospectus is delivered, upon written or oral request. Written requests should be directed to Gulfport Energy Corporation, Attention: Investor Relations, at 14313 North May Avenue, Suite 100, Oklahoma City, Oklahoma 73134. Oral requests should be made by calling our Investor Relations Department at (405) 242-4888.

In order to ensure timely delivery of the documents, you must make your requests to us no later than                     , 2015 (which is five business days prior to the expiration of the exchange offer, unless we extend the exchange offer). In the event that we extend the exchange offer, you must submit your request at least five business days before the expiration date of the exchange offer, as extended.

WHERE YOU CAN FIND MORE INFORMATION

We currently file periodic reports and other information under the Securities Exchange Act of 1934, as amended, or the Exchange Act. Under the terms of the Indenture, we have agreed that, whether or not we are required to do so by the rules and regulations of the Securities and Exchange Commission, or the SEC, after the exchange offer is completed and for so long as any of the Exchange Notes remain outstanding, we will furnish to

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the trustee and the holders of the Exchange Notes and, upon written request, to prospective investors, and file with the SEC (unless the SEC will not accept such a filing) (i) all quarterly and annual financial information that would be required to be contained in a filing with the SEC on Forms 10-Q and 10-K if we were required to file such reports, including a “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and, with respect to the annual information only, a report thereon by our independent registered public accountant and (ii) all reports that would be required to be filed with the SEC on Form 8-K if we were required to file such reports, in each case within the time period specified in the rules and regulations of the SEC. In addition, for so long as any of the Exchange Notes remain outstanding, we have agreed to make available to any holder of the Exchange Notes or prospective purchaser of the Exchange Notes, at their request, the information required by Rule 144A(d)(4) under the Securities Act. This prospectus contains or incorporates by reference summaries of certain agreements that we have entered into, such as the Indenture and the agreements described under “Description of Other Indebtedness” and “Description of the Exchange Notes.” The descriptions contained or incorporated by reference into this prospectus of these agreements do not purport to be complete and are qualified in their entirety by reference to the definitive agreements. Copies of the definitive agreements will be made available without charge to you by making a written or oral request to us.

Our SEC filings are available to the public over the Internet at the SEC’s web site at www.sec.gov. You may also read and copy any document we file with the SEC at the SEC’s public reference room located at 100 F Street, N.E., Washington D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information on the public reference room and copy charges. Also, using our website, http://www.gulfportenergy.com, you can access electronic copies of documents we file with the SEC, including our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K and any amendments to those reports. Information on our website is not incorporated by reference into this prospectus. You may also request a copy of those filings, excluding exhibits, at no cost by writing to Gulfport Energy Corporation, Attention: Investor Relations, at 14313 North May Avenue, Suite 100, Oklahoma City, Oklahoma 73134, or calling (405) 242-4888.

INFORMATION INCORPORATED BY REFERENCE

The SEC allows us to “incorporate by reference” into this prospectus the information we provide in other documents filed by us with the SEC. The information incorporated by reference is an important part of this prospectus. Any statement contained in a document that is incorporated by reference into this prospectus is automatically updated and superseded if information contained in this prospectus, or information that we later file with the SEC, modifies and replaces this information. We incorporate by reference the following documents that we have filed with the SEC:

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In addition, we incorporate by reference the financial statements of Diamondback Energy, Inc., or Diamondback, that have been included on pages F-1 to F-54 in Diamondback’s Annual Report on Form 10-K (File No. 001-35700) filed with the SEC on February 20, 2015.

In addition, all documents filed by us with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act (other than those furnished pursuant to Item 2.02 or Item 7.01 of Form 8-K, unless otherwise stated therein) (i) after the date of the initial registration statement of which this prospectus is a part and prior to effectiveness of such registration statement and (ii) after the date of this prospectus through the completion of the exchange offer, in each case, will be deemed to be incorporated by reference into this prospectus and to be a part of this prospectus from the dates of the filing of such documents. Pursuant to General Instruction B of Form 8-K, any information submitted under Item 2.02, Results of Operations and Financial Condition, or Item 7.01, Regulation FD Disclosure, of Form 8-K is not deemed to be “filed” for the purpose of Section 18 of the Exchange Act, and we are not subject to the liabilities of Section 18 with respect to information submitted under Item 2.02 or Item 7.01 of Form 8-K. We are not incorporating by reference any information submitted under Item 2.02 or Item 7.01 of Form 8-K into any filing under the Securities Act or the Exchange Act or into this prospectus, unless otherwise indicated on such Form 8-K.

You may request a copy of this prospectus or any of the incorporated documents (excluding exhibits, unless the exhibits are specifically incorporated) at no charge to you by writing to Gulfport Energy Corporation, Attention: Investor Relations, at 14313 North May Avenue, Suite 100, Oklahoma City, Oklahoma 73134, or calling (405) 242-4888.

Any statement contained in a document incorporated or deemed to be incorporated by reference in this prospectus will be deemed modified, superseded or replaced for purposes of this prospectus to the extent that a statement contained in this prospectus modifies, supersedes or replaces such statement.

INDUSTRY AND MARKET DATA

We obtained the industry and market data used throughout, or incorporated by reference into, this prospectus from our own research, surveys or studies conducted by third parties and industry or general publications. Industry publications and surveys generally state that they have obtained information from sources believed to be reliable, but do not guarantee the accuracy and completeness of such information. While we believe that each of these studies and publications is reliable, we have not independently verified such data and we make no representation as to the accuracy of such information. Similarly, we believe our internal research is reliable but it has not been verified by any independent sources.

CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS

This prospectus and the documents incorporated by reference into this prospectus may include “forward-looking statements” within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act. These statements involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “should,” “could,” “would,” “expects,” “plans,” “anticipates,” “intends,” “believes,” “estimates,” “projects,” “predicts,” “potential” and similar expressions intended to identify forward-looking statements. All statements, other than statements of historical facts, included in this prospectus and the documents incorporated by reference into this prospectus that address activities, events or developments that we expect or anticipate will or may occur in the future, including our pending acquisition and such things as estimated future net revenues from oil and gas reserves, future capital expenditures (including the amount and nature thereof), drilling activity, production, expenses, business strategy and measures to

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implement strategy, competitive strengths, goals, expansion and growth of our business and operations, plans, references to future success, references to intentions as to future matters and other such matters are forward-looking statements. These statements are based on certain assumptions and analyses made by us in light of our experience and our perception of historical trends, current conditions and expected future developments as well as other factors we believe are appropriate in the circumstances. However, whether actual results and developments will conform with our expectations and predictions is subject to a number of risks and uncertainties, including those discussed under the heading “Risk Factors” in this prospectus and those discussed in the documents incorporated by reference into this prospectus. Consequently, all of the forward-looking statements made in this prospectus, and the documents incorporated by reference into this prospectus, are qualified by these cautionary statements and we cannot assure you that the actual results or developments anticipated by us will be realized or, even if realized, that they will have the expected consequences to or effects on us, our business or operations. We have no intention, and disclaim any obligation, to update or revise any forward-looking statements, whether as a result of new information, future results or otherwise.

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RISK FACTORS

You should carefully consider each of the risks described below, in our Annual Report on Form 10-K for the year ended December 31, 2014 and in subsequent Quarterly Reports on Form 10-Q and other filings we make with the SEC, as may be amended from time to time, incorporated by reference into this prospectus, and all of the other information contained in or incorporated by reference into this prospectus, before participating in the exchange offer. Our business, financial condition and results of operations could be materially and adversely affected by any of these risks. The risks described below and those incorporated by reference into this prospectus are not the only ones facing us. Additional risks not presently known to us or which we currently consider immaterial also may adversely affect us.

Risks Related to the Exchange Notes, the Exchange Offer and Our Other Indebtedness

Your failure to participate in the exchange offer may have adverse consequences.

If you do not exchange your 2015 Notes for Exchange Notes pursuant to the exchange offer, you will continue to be subject to the restrictions on transfer of your 2015 Notes, as set forth in the legend on your 2015 Notes. The restrictions on transfer of your 2015 Notes arise because we sold the 2015 Notes in a private offering. In general, the 2015 Notes may not be offered or sold unless registered under the Securities Act or pursuant to an exemption from, or in a transaction not subject to, such registration requirements.

After completion of the exchange offer, holders of 2015 Notes who do not tender their 2015 Notes in the exchange offer will no longer be entitled to any exchange or registration rights under the registration rights agreement, except in limited circumstances. The tender of 2015 Notes under the exchange offer will reduce the principal amount of the currently outstanding 2015 Notes. Due to the corresponding reduction in liquidity, this may have an adverse effect upon, and increase the volatility of, the market price of any currently outstanding 2015 Notes that you continue to hold following completion of the exchange offer. See “The Exchange Offer.”

You must comply with the exchange offer procedures in order to receive new, freely tradable Exchange Notes.

Delivery of the Exchange Notes in exchange for the 2015 Notes tendered and accepted for exchange pursuant to the exchange offer will be made provided the procedures for tendering the 2015 Notes are followed. We are not required to notify you of defects or irregularities in tenders of 2015 Notes for exchange. See “The Exchange Offer.”

Some holders who exchange their 2015 Notes may be deemed to have received restricted securities, and these holders will be required to comply with the registration and prospectus delivery requirements in connection with any resale transaction.

If you exchange your 2015 Notes in the exchange offer for the purpose of participating in a distribution of the Exchange Notes, you may be deemed to have received restricted securities and, if so, will be required to comply with the registration and prospectus delivery requirements of the Securities Act in connection with any resale transaction.

The consummation of the exchange offer may not occur.

We are not obligated to complete the exchange offer under certain circumstances. See “The Exchange Offer—Conditions to the Exchange Offer.” Even if the exchange offer is completed, it may not be completed on the schedule described in this prospectus. Accordingly, holders participating in the exchange offer may have to wait longer than expected to receive their Exchange Notes. You may be required to deliver prospectuses and comply with other requirements in connection with any resale of the Exchange Notes.

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There may not be a liquid market for the Exchange Notes and you may not be able to sell your Exchange Notes at the price acceptable to you or at all.

The Exchange Notes will not be listed on any securities exchange or included in any automated quotation system. There can be no assurance that a trading market for the Exchange Notes will ever develop or will be maintained. The initial purchasers have advised us that they have been making a market in the 2015 Notes and intend to continue to make a market in such notes and, when issued, the Exchange Notes. The initial purchasers are not obligated, however, to do so, and any such market making may be discontinued by the initial purchasers in their discretion at any time without notice. Further, there can be no assurance as to the liquidity of any market that may develop for the Exchange Notes, your ability to sell your Exchange Notes or the price at which you will be able to sell your Exchange Notes. Future trading prices of the Exchange Notes will depend on many factors, including prevailing interest rates, our financial condition and results of operations, the then-current ratings assigned to the Exchange Notes, the market for similar securities and the results of our competitors. In addition, if a large amount of 2015 Notes are not tendered or are tendered improperly, the limited amount of Exchange Notes that would be issued and outstanding after we consummate this exchange offer would reduce liquidity and could lower the market price of those Exchange Notes.

Any trading market that develops would be affected by many factors independent of and in addition to the foregoing, including:

Market conditions for oil and natural gas, and particularly the recent decline in prices for oil and natural gas, could adversely affect our revenue, cash flows, profitability, growth, production and the present value of our estimated reserves.

Our revenue, cash flows, profitability, growth, production and present value of our estimated reserves depend substantially upon prevailing prices for oil and natural gas. During the past six years, the posted price for West Texas intermediate light sweet crude oil, which we refer to as West Texas Intermediate, or WTI, has ranged from a low of $34.03 per barrel, or Bbl, in February 2009 to a high of $113.39 per Bbl in April 2011. The Henry Hub spot market price of natural gas has ranged from a low of $1.82 per MMBtu in April 2012 to a high of $7.51 per MMBtu in January 2010. During 2014, WTI prices ranged from $53.27 to $106.91 per Bbl and the Henry Hub spot market price of natural gas ranged from $2.89 to $6.15 per MMBtu. On August 10, 2015, the WTI posted price for crude oil was $44.96 per Bbl and the Henry Hub spot market price of natural gas was $2.84 per MMBtu, representing decreases of approximately 58% and 54%, respectively, from the high of $106.91 per Bbl of oil and $6.15 per MMBtu for natural gas during 2014. If the prices of oil and natural gas continue at current levels or decline further, our operations, financial condition and level of expenditures for the development of our oil and natural gas reserves may be materially and adversely affected. In addition, lower oil and natural gas prices may reduce the amount of oil and natural gas that we can produce economically. This may result in our having to make substantial downward adjustments to our estimated proved reserves. If this occurs or if our production estimates change or our exploration or development activities are curtailed, full cost accounting rules may require us to write down, as a non-cash charge to earnings, the carrying value of our oil and natural gas properties. Reductions in our reserves could also negatively impact the borrowing base under our secured revolving credit facility, which could further limit our liquidity and ability to conduct additional exploration and development activities.

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Our substantial level of indebtedness could adversely affect our business, financial condition, results of operations and prospects.

As of June 30, 2015, we had total indebtedness (net of associated accrued discount and premium) of approximately $965.3 million, including $600.0 million attributable to our outstanding 7.750% Notes and $350.0 million attributable to our outstanding 2015 Notes. At June 30, 2015, our borrowing base under our secured revolving credit facility was $575.0 million and the total availability for future borrowings under this facility, after giving effect to an aggregate of $92.7 million of letters of credit, was $482.3 million.

Our outstanding indebtedness could have important consequences to you, including the following:

Any of the foregoing could have a material adverse effect on our business, financial condition, results of operations, prospects and ability to satisfy our obligations under the Notes.

If we default on our obligations to pay our other indebtedness, we may not be able to make payments on the Notes.

Any default under the agreements governing our indebtedness could prohibit us from making payments of principal, premium, if any, or interest on the Notes and could substantially decrease the market value of the Notes. If we are unable to generate sufficient cash flow and are otherwise unable to obtain funds necessary to meet required payments of principal, premium, if any, or interest on our indebtedness, or if we otherwise fail to comply with the various covenants, including financial and operating covenants, in the instruments governing our indebtedness, we could be in default under the terms of the agreements governing such indebtedness. In the event of such default, the holders of such indebtedness could elect to declare all the funds borrowed thereunder to be due and payable, together with accrued and unpaid interest. More specifically, the lenders under our secured revolving credit facility could elect to terminate their commitments, cease making further loans and institute foreclosure proceedings against our assets, and we could be forced into bankruptcy or litigation.

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We may not have sufficient funds to repay borrowings under our secured revolving credit facility if required as a result of a borrowing base redetermination.

Availability under our secured revolving credit facility is currently subject to a borrowing base of $575.0 million. In the event of an issuance of debt securities such as the 2015 Notes, the borrowing base under our secured revolving credit facility is automatically reduced by an amount determined by lenders holding at least 66 ²/₃% of the commitments under such facility. Our borrowing base was not reduced in connection with the issuance of the 2015 Notes. The borrowing base is also redetermined by the lenders on a semiannual basis. Additionally, the required lenders have the right to request one additional borrowing base redetermination in between scheduled redeterminations, and also have the right to redetermine the borrowing base upon the amendment, modification or termination of any swap contract. In addition, our borrowing base will be reduced in connection with certain asset dispositions.

We repaid all borrowings then-outstanding under our secured revolving credit facility (approximately $300.0 million as of April 21, 2015) with a portion of the proceeds from the offering of the 2015 Notes. As of the date of this preliminary prospectus, we had no borrowings, and $135.3 million of letters of credit outstanding under our secured revolving credit facility. We intend to reborrow under this facility and obtain more letters of credit in the future from time to time. If the outstanding borrowings under our secured revolving credit facility were to exceed the borrowing base as a result of any redetermination due to continued decreases in commodity prices or otherwise, we would be required to eliminate this excess. If we are forced to repay a portion of our bank borrowings, we may not have sufficient funds to make such repayments. If we do not have sufficient funds and we are otherwise unable to negotiate renewals of our borrowings or arrange new financing, we may have to sell significant assets. Any such sale could have a material adverse effect on our business and financial results.

Servicing our indebtedness requires a significant amount of cash, and we may not have sufficient cash flow from our business to pay our substantial indebtedness.

Our ability to make scheduled payments of the principal of, to pay interest on or to refinance our indebtedness, including the Notes, depends on our future performance, which is subject to economic, financial, competitive and other factors beyond our control. Our business may not generate cash flow from operations in the future sufficient to service our debt and make necessary capital expenditures. If we are unable to generate such cash flow, we may be required to adopt one or more alternatives, such as reducing or delaying capital expenditures, selling assets, restructuring debt or obtaining additional equity capital on terms that may be onerous or highly dilutive. However, we cannot assure you that undertaking alternative financing plans, if necessary, would allow us to meet our debt obligations. In the absence of such cash flows, we could have substantial liquidity problems and might be required to sell material assets or operations to attempt to meet our debt service and other obligations.

Our existing debt agreements, including the Indenture, restrict our ability to use the proceeds from asset sales. We may not be able to consummate those asset sales to raise capital or sell assets at prices that we believe are fair, and proceeds that we do receive may not be adequate to meet any debt service obligations then due. See “Description of Other Indebtedness” and “Description of the Exchange Notes.” Our ability to refinance our indebtedness will depend on the capital markets and our financial condition at the time. We may not be able to engage in any of these activities or engage in these activities on desirable terms, which could result in a default on our debt obligations and have an adverse effect on our financial condition.

Despite our current leverage, we may still be able to incur substantially more indebtedness. This could further exacerbate the risks that we and our subsidiaries face.

We and our subsidiaries may be able to incur substantial additional indebtedness in the future. The terms of our existing debt agreements, including the Indenture, restrict, but in each case do not completely prohibit, us from doing so. In addition, our existing debt agreements, including the Indenture, allow us to issue additional notes under certain circumstances which would also be guaranteed by the guarantors. Our existing debt

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agreements, including the Indenture, allow us to incur certain other additional secured debt and will allow our subsidiaries that do not guarantee the 2015 Notes, and will not guarantee the Exchange Notes, to incur additional debt, which would be structurally senior to the Notes. In addition, our existing debt agreements, including the Indenture, do not prevent us from incurring other liabilities that do not constitute indebtedness. See “Description of the Exchange Notes.” If new debt or other liabilities are added to our current debt levels, the related risks that we and our subsidiaries now face could intensify.

Restrictive covenants in our existing debt agreements, including the Indenture, and in future debt instruments may restrict our ability to pursue our business strategies.

Our secured revolving credit facility and the Indenture limit, and the terms of any future indebtedness may limit, our ability, among other things, to:

The restrictions contained in these agreements could limit our ability to plan for, or react to, market conditions, meet capital needs, make acquisitions or otherwise restrict our activities or business plans.

A breach of any of these restrictive covenants could result in a default under the agreement governing our secured revolving credit facility, the Indenture or the indenture that governs our outstanding 7.750% Notes. If a default occurs, the lenders under our secured revolving credit facility or the holders of the 2015 Notes or the 7.750% Notes, or all of them, may elect to declare all debt outstanding under such agreement, together with accrued interest and other amounts, to be immediately due and payable, which would result in an event of default under the Indenture. The lenders under our secured revolving credit facility will also have the right in these circumstances to terminate any commitments they have to provide further borrowings. If we are unable to repay outstanding borrowings when due, the lenders under our secured revolving credit facility will also have the right to proceed against the collateral granted to them to secure the indebtedness. If the indebtedness under our senior secured revolving credit facility, our outstanding 7.750% Notes and the Notes were to be accelerated, we cannot assure you that our assets would be sufficient to repay in full that indebtedness and our other indebtedness, including the Notes. See “Description of the Exchange Notes—Certain Covenants.”

Our borrowings under our secured revolving credit facility expose us to interest rate risk.

Our secured revolving credit facility is structured under floating rate terms, as advances under this facility may be in the form of either base rate loans or eurodollar loans. As such, our interest expense is sensitive to fluctuations in the prime rates in the U.S. or, if the eurodollar rates are elected, the eurodollar rates. At June 30, 2015, we had no borrowings under our secured revolving credit facility; therefore, an increase in interest rates would not have impacted our interest expense. At April 21, 2015, the last day on which we had borrowings

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outstanding under our secured revolving credit facility, a 1% increase in interest rates would increase interest expense by approximately $3.0 million per year, based on approximately $300.0 million outstanding under our secured revolving credit facility as of that date. As of June 30, 2015, we did not have any interest rate swaps to hedge our interest risks.

We have capacity to make substantial restricted payments.

Under the Indenture, we have capacity to make substantial restricted payments, which may include dividends, stock repurchases, restricted investments and certain other payments. As of June 30, 2015, we would have been able to make approximately $2.4 billion of restricted payments under the formula set forth in the Indenture covenant relating to restricted payments, which is described under the caption “Description of the Exchange Notes—Certain Covenants—Limitation on Restricted Payments,” subject to other limitations set forth in that covenant and limitations imposed by applicable law. In addition, the Indenture permits us to make other substantial restricted payments and substantial permitted investments.

The restrictive covenants in the Indenture are subject to a number of important qualifications, exceptions and limitations, and are subject to amendment.

The restrictive covenants in the Indenture only apply to us and our restricted subsidiaries and are subject to a number of other important qualifications, exceptions and limitations. This means that the restrictions are not absolute prohibitions. We and our restricted subsidiaries may be able to engage in some of the restricted activities, such as incurring additional debt, securing assets in priority to the claims of the holders of the Notes, paying dividends, making investments, selling assets and entering into mergers or other business combinations, in limited amounts, or in certain circumstances, in unlimited amounts, notwithstanding the restrictive covenants. Our unrestricted subsidiaries, including Grizzly Holdings and its subsidiaries, are permitted to engage in such activities without material limitation under the Indenture. See “Description of the Exchange Notes—Certain Covenants.” These actions could be detrimental to our ability to make payments of principal and interest when due and to comply with our other obligations under the Notes, and could reduce the amount of our assets that would be available to satisfy your claims should we default on the Notes.

In addition, the restrictive covenants in the Indenture generally can be amended with the consent of holders of a majority of the Notes, and any such amendment would bind all holders of Notes, including ones that did not vote in favor of the amendment. Any such amendment could delete one or more restrictive covenants or add additional qualifications, exceptions or limitations.

The restrictive covenants in our secured revolving credit facility and the indenture governing our outstanding 7.750% Notes and other debt instruments are also subject to a number of important qualifications, exceptions and limitations, and to amendment.

The restrictive covenants in our secured revolving credit facility and the indenture governing our outstanding 7.750% Notes only apply to us and our restricted subsidiaries and are subject to a number of other important qualifications, exceptions and limitations. We and our restricted subsidiaries may be able to engage in some of the restricted activities, in limited amounts, or in certain circumstances, in unlimited amounts, notwithstanding the restrictive covenants. Further, the restrictive covenants in the secured revolving credit facility and the indenture governing our outstanding 7.750% Notes can be amended or waived without the consent of the holders of the Notes, and the lenders under the secured revolving credit facility and the holders of the outstanding 7.750% Notes may have interests that are opposed to the interests of the holders of the Notes. Restrictive covenants, if any, in future debt instruments could be subject to similar qualifications, exceptions, limitations, amendments and waivers. There can be no assurance that restrictive covenants in any other debt instrument will limit our activities.

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We face risks related to rating agency downgrades.

If one or more rating agencies either assign the Notes a rating lower than the rating expected by the investors, or reduce the rating in the future, the market price of the Notes, including the Exchange Notes, may be adversely affected, raising capital may become more difficult and borrowing costs under our secured revolving credit facility and other future borrowings may increase.

The Notes are unsecured and effectively junior to the claims of any existing and future secured creditors. Further, the guarantees of the Notes are effectively subordinated to all our guarantors’ existing and future secured indebtedness.

The Notes are unsecured obligations and rank equally in right of payment with all of our other existing and future unsecured, unsubordinated obligations, including our outstanding 7.750% Notes. The Notes are not secured by any of our assets and are effectively junior to the claims of any secured creditors and to the existing and future secured liabilities of our subsidiaries to the extent of the value of the assets securing the secured liabilities. As of June 30, 2015, the amount of our secured debt was approximately $94.4 million, consisting of $92.7 million of letters of credit outstanding under our secured revolving credit facility and $1.7 million outstanding under our existing office building loan described under “Description of Other Indebtedness—Building Loans.” Our obligations under our secured revolving credit facility are secured by substantially all of our proved oil and gas assets, and are guaranteed by all of the subsidiaries that guarantee the Notes, as well as by Grizzly Holdings, which does not guarantee the Notes. In addition, we may incur other senior indebtedness, which may be substantial in amount, and which may, in certain circumstances, be secured. Any future claims of secured lenders, including the lenders under our secured revolving credit facility, with respect to assets securing their loans will be prior to any claim of the holders of the Notes with respect to those assets. As a result, our assets may be insufficient to pay amounts due on your Notes or holders of the Notes may receive less, ratably, than holders of secured indebtedness. Further, since the Notes rank equally in right of payment with our outstanding 7.750% Notes and all of our other existing and future unsecured, unsubordinated obligations, in the event that our assets are insufficient to pay all amounts due on your Notes, our available assets will not be distributed solely to holders of the Notes, but instead may be distributed ratably to the holders of all of our unsecured, unsubordinated obligations, including our outstanding 7.750% Notes, which could reduce your recovery.

Not all of our subsidiaries are, or will be, guarantors and therefore the Notes will be structurally subordinated to the indebtedness and other liabilities of our existing or future subsidiaries that do not guarantee the Notes.

The Notes are not, nor will they be, guaranteed by all of our subsidiaries. Restricted subsidiaries that guarantee our secured revolving credit facility and certain other debt are required to guarantee the Notes, but other subsidiaries, including unrestricted subsidiaries, such as Grizzly Holdings, which is a guarantor of our secured revolving credit facility, are not required to guarantee the Notes. Claims of holders of the Notes will be structurally subordinated to the claims of creditors of these non-guarantor subsidiaries. Our non-guarantor subsidiaries are separate and distinct legal entities and have no obligation, contingent or otherwise, to pay any amounts due pursuant to the Notes, or to make any funds available therefor, whether by dividends, loans, distributions or other payments. Any right that we or the subsidiary guarantors have to receive any assets of any of the non-guarantor subsidiaries upon the liquidation or reorganization of those subsidiaries, and the consequent rights of holders of the Notes to realize proceeds from the sale of any of those subsidiaries’ assets, will be effectively subordinated to the claims of those subsidiaries’ creditors, including trade creditors and holders of debt of that subsidiary. In addition, the Indenture permits non-guarantor subsidiaries to incur significant additional indebtedness. See “Description of the Exchange Notes.” As of June 30, 2015, our non-guarantor subsidiaries had $164.1 million of total assets and $0.1 million of total liabilities and generated none of our consolidated revenues. All of our subsidiaries are guarantors, other than Grizzly Holdings, which is an unrestricted subsidiary and does not guarantee the Notes.

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Fraudulent conveyance laws may allow courts, under specific circumstances, to void the Notes and require noteholders to return payments received.

The Notes may be subject to claims that they should be limited, subordinated or voided under applicable law in favor of our existing or future creditors. These laws include those that relate to fraudulent conveyance or transfer, voidable preference, financial assistance, corporate purpose or benefit, preservation of share capital, thin capitalization and defenses affecting the rights of creditors generally.

In general, under fraudulent conveyance and similar laws, a court might void or otherwise decline to enforce the Notes if it found that when we issued the Notes, or, in certain instances, when payments became due under the Notes, we received less than reasonably equivalent value or fair consideration and one of the following is true:

A court might also void the Notes without regard to the above factors if such court found that we issued the Notes with actual intent to hinder, delay or defraud our creditors. A court could also find we did not substantially benefit directly or indirectly from the issuance of the Notes. As a general matter, value is given for a note if, in exchange for the note, property is transferred or a present or an antecedent debt is satisfied. A debtor generally may not be considered to have received value in connection with a debt offering if the debtor uses the proceeds of that offering to make a dividend payment, repay share premium or otherwise to retire or redeem equity securities issued by the debtor.

The measures of insolvency applied by courts will vary depending upon the particular fraudulent transfer law applied in any proceeding to determine whether a fraudulent transfer has occurred. In the event of a finding that a fraudulent conveyance or transfer has occurred, a court may void, or hold unenforceable, the Notes, which could mean that you may not receive any payments on the Notes and the court may direct you to repay any amounts that you have already received from the issuer for the benefit of creditors. Furthermore, the holders of voided Notes would cease to have any direct claim against us. Consequently, our assets would be applied first to satisfy our other liabilities, before any portion of our assets could be applied to the payment of the Notes. Sufficient funds to repay the Notes may not be available from other sources. Moreover, the voidance of the Notes could result in an event of default with respect to our other debt that could result in acceleration of such debt (if not otherwise accelerated due to insolvency or other proceeding).

The guarantees provided by the guarantors may not be enforceable and, under specific circumstances, federal and state courts may void the guarantees and require holders to return payments received from the guarantors.

Although the Notes are guaranteed by certain of our subsidiaries, a court could void or subordinate any guarantor’s guarantee under federal or state fraudulent conveyance laws if existing or future creditors of any such guarantor were successful in establishing that such guarantee was incurred with fraudulent intent or such guarantor did not receive fair consideration or reasonably equivalent value for issuing its guarantee and either:

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In such event, any payment by a guarantor pursuant to its guarantee could be subordinated or voided and required to be returned to the guarantor or to a fund for the benefit of the guarantor’s creditors. The measures of insolvency for purposes of determining whether a fraudulent conveyance occurred would vary depending upon the laws of the relevant jurisdiction and upon the valuation assumptions and methodology applied by the court. Generally, however, a company would be considered insolvent for purposes of the foregoing if:

We have no assurance as to what standard a court would use to determine whether or not a guarantor would be solvent at the relevant time, or regardless of the standard used, that the guarantees would not be voided or subordinated to any guarantor’s other debt. If such a case were to occur, the applicable guarantee could be subject to the claim that, since such guarantee was incurred for the benefit of the Company and only indirectly for the benefit of the guarantor, the obligations of such guarantor were incurred for less than fair consideration.

Each guarantee of the Notes contains a provision, referred to as the “savings clause,” designed to limit the guarantor’s liability to the maximum amount that it could incur without causing the incurrence of obligations under its guarantee to be a fraudulent transfer. However, there is some doubt as to whether this provision is effective to protect such guarantee from being voided under fraudulent transfer law. For example, in 2009, the U.S. Bankruptcy Court in the Southern District of Florida in Official Committee of Unsecured Creditors of TOUSA, Inc. v. Citicorp N. Am., Inc. found a “savings clause” provision in that case to be ineffective and held those guarantees to be fraudulent transfers and voided them in their entirety. In 2012, the United States Court of Appeals for the Eleventh Circuit upheld the bankruptcy court’s decision finding the savings clause to be ineffective.

If a guarantor’s guarantee is voided as a fraudulent conveyance or found to be unenforceable for any other reason, holders of the Notes will not have a claim against such guarantor and will only be a creditor of the Company and the remaining guarantors, if any, to the extent the guarantees of those guarantors are not set aside or found to be unenforceable. The Notes then would in effect be structurally subordinated to all liabilities of the guarantor whose guarantee was voided.

We cannot assure you that an active trading market will develop for the Notes.

We do not intend to apply for listing of the 2015 Notes or the Exchange Notes on any securities exchange or to arrange for quotation of the notes on any automated dealer quotation system. The initial purchasers have advised us that they have been making a market in the 2015 Notes and intend to continue to make a market in such notes and, when issued, the Exchange Notes. The initial purchasers are not obligated, however, to do so, and any such market may be discontinued by the initial purchasers in their discretion at any time without notice. See “Plan of Distribution.” In addition, the liquidity of the trading market in the Notes, and the market price quoted for the Notes, may be adversely affected by changes in the overall market for this type of security and by changes

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in our financial performance or prospects or in the prospects for companies in our industry generally. As a result, we cannot assure you that an active trading market will be maintained for the Notes. If an active trading market is not maintained, the market price and liquidity of the Notes may be adversely affected. In that case, you may not be able to sell your Notes at a particular time, or you may not be able to sell your Notes at a favorable price. Consequently, a purchaser of the Notes may not be able to liquidate its investment readily and the Notes may not be readily accepted as collateral for loans. Furthermore, the market for non-investment grade debt has been subject to disruptions that have caused substantial fluctuations in the price of the securities. Any disruptions may have a negative effect on noteholders, regardless of our prospects and financial performance.

The market price for the Notes may be volatile.

Historically, the market for non-investment grade debt has been subject to disruptions that have caused substantial fluctuations in the price of the securities. Even if a trading market for the Notes develops, it may be subject to disruptions and price volatility. Any disruptions may have a negative effect on noteholders, regardless of our prospects and financial performance.

Changes in our credit ratings or the debt markets may adversely affect the market price of the Notes.

The price for the Notes will depend on a number of factors, including:

The condition of the financial markets and prevailing interest rates have fluctuated in the past and are likely to fluctuate in the future. Such fluctuations could have an adverse effect on the price of the Notes. In addition, credit rating agencies continually review their ratings for the companies that they follow, including us. The credit rating agencies also evaluate the industries in which we operate as a whole and may change their credit rating for us based on their overall view of such industries. A negative change in our rating could have an adverse effect on the price of the Notes.

Upon a change of control, we may not have the ability to raise the funds necessary to finance the change of control offer required by the Indenture, which would violate the terms of the Notes.

Upon the occurrence of a change of control, holders of the Notes will have the right to require us to purchase all or any part of such holders’ Notes at a price equal to 101% of the principal amount thereof, plus accrued and unpaid interest, if any, to the date of purchase. There can be no assurance that either we or our subsidiary guarantors would have sufficient financial resources available to satisfy all of our or their obligations under the Notes in the event of a change in control. Our failure to purchase the Notes as required under the Indenture would result in a default under the Indenture, which could have material adverse consequences for us and the holders of the Notes. See “Description of the Exchange Notes—Change of Control.”

We may enter into transactions that would not constitute a change of control that could affect our ability to satisfy our obligations under the Notes.

Legal uncertainty regarding what constitutes change of control and the provisions of the Indenture may allow us to enter into transactions such as mergers, acquisitions, equity issuances, refinancings or recapitalizations that would not constitute a change of control but may increase our outstanding indebtedness or otherwise affect our ability to satisfy our obligations under the Notes. The definition of change of control for

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purposes of the Notes includes phrases relating to the transfer of “all or substantially all” of our assets (determined on a consolidated basis). Although there is a limited body of case law interpreting the phrase “substantially all,” there is no precise established definition of the phrase under applicable law. Accordingly your ability to require us to repurchase Notes as result of transfer of less than all of our assets to another person may be uncertain. See “Description of the Exchange Notes—Change of Control.”

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USE OF PROCEEDS

This exchange offer is intended to satisfy certain of our obligations under the registration rights agreement among us and the initial purchasers of the 2015 Notes. We will not receive any cash proceeds from the issuance of the Exchange Notes. In consideration for issuing the Exchange Notes as contemplated by this prospectus, we will receive in exchange the 2015 Notes in like principal amount, the form and terms of which are the same in all material respects as the form and terms of the Exchange Notes except that the Exchange Notes have been registered under the Securities Act and will not contain terms restricting the transfer thereof or providing for registration rights. The 2015 Notes surrendered in exchange for the Exchange Notes will be retired and cancelled and cannot be reissued. Accordingly, issuance of the Exchange Notes will not increase our indebtedness.

We received net proceeds of approximately $343.6 million from the offering of the 2015 Notes.

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THE EXCHANGE OFFER

Purpose and Effect of this Exchange Offer

In connection with the issuance of the 2015 Notes, we entered into a registration rights agreement that provided for the exchange offer. The registration statement of which this prospectus forms a part was filed in compliance with the obligations under the registration rights agreement. A copy of the registration rights agreement relating to the 2015 Notes is incorporated by reference as an exhibit to the registration statement of which this prospectus is a part. Under the registration rights agreement relating to the 2015 Notes we agreed that we would, subject to certain exceptions:

For each 2015 Note validly tendered to us and not withdrawn pursuant to the exchange offer, we will issue to the holder of such 2015 Note an Exchange Note having a principal amount equal to that of the surrendered 2015 Note. Interest on each Exchange Note will accrue from the last interest payment date on which interest was paid on the 2015 Note surrendered in exchange therefor, or, if no interest has been paid on such 2015 Note, from the date of its original issue.

Under existing SEC interpretations, the Exchange Notes will be freely transferable by holders other than our affiliates after the exchange offer without further registration under the Securities Act if the holder of the Exchange Notes represents to us in the exchange offer that it is acquiring the Exchange Notes in the ordinary course of its business, that it has no arrangement or understanding with any person to participate in the distribution (within the meaning of the Securities Act) of the Exchange Notes and that it is not an “affiliate” of ours, as defined in Rule 405 under the Securities Act; provided, however, that broker-dealers receiving the Exchange Notes in the exchange offer will have a prospectus delivery requirement with respect to resales of such Exchange Notes. The SEC has taken the position that such participating broker-dealers may fulfill their prospectus delivery requirements with respect to the Exchange Notes (other than a resale of an unsold allotment from the original sale of the 2015 Notes) with this prospectus contained in the registration statement. Under the registration rights agreement, we are required to allow participating broker-dealers and other persons, if any, with similar prospectus delivery requirements to use the prospectus contained in the registration statement in connection with the resale of such Exchange Notes for 180 days following the effective date of such registration statement (or such shorter period during which participating broker-dealers are required by law to deliver such prospectus). Each broker-dealer that receives the Exchange Notes for its own account in exchange for the 2015 Notes, where such 2015 Notes were acquired by such broker-dealer as a result of market-making activities or other trading activities, must acknowledge that it will deliver a prospectus in connection with any resale of such Exchange Notes. See “Plan of Distribution.”

A holder of 2015 Notes (other than certain specified holders) who wishes to exchange the 2015 Notes for the Exchange Notes in the exchange offer will be required to represent that any Exchange Notes to be received by it will be acquired in the ordinary course of its business and that at the time of the commencement of the exchange offer it has no arrangement or understanding with any person to participate in the distribution (within the meaning of the Securities Act) of the Exchange Notes and that it is not an “affiliate” of ours, as defined in Rule 405 of the Securities Act, or if it is an affiliate, that it will comply with the registration and prospectus delivery requirements of the Securities Act to the extent applicable.

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In the event that:

then, we will, subject to certain exceptions:

We will, in the event a shelf registration statement is filed, among other things, provide to each holder for whom such shelf registration statement was filed copies of the prospectus which is a part of the shelf registration statement, notify each such holder when the shelf registration statement has become effective and take certain other actions as are required to permit unrestricted resales of the 2015 Notes or the Exchange Notes, as the case may be. A holder selling such 2015 Notes or Exchange Notes pursuant to the shelf registration statement generally would be required to be named as a selling security holder in the related prospectus and to deliver a prospectus to purchasers, will be subject to certain of the civil liability provisions under the Securities Act in connection with such sales and will be bound by the provisions of the registration rights agreement that are applicable to such holder (including certain indemnification obligations).

We may require each holder requesting to be named as a selling security holder to furnish to us such information regarding the holder and the distribution of the 2015 Notes or Exchange Notes by the holder as we may from time to time reasonably require for the inclusion of the holder in the shelf registration statement, including requiring the holder to properly complete and execute such selling security holder notice and questionnaires, and any amendments or supplements thereto, as we may reasonably deem necessary or appropriate. We may refuse to name any holder as a selling security holder that fails to provide us with such information.

We will pay additional cash interest on 2015 Notes (and, where applicable, Exchange Notes) that are Transfer Restricted Notes:

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The rate of the additional interest will be 0.25% per annum for the first 90-day period immediately following the occurrence of a registration default, and such rate will increase by an additional 0.25% per annum with respect to each subsequent 90-day period until all registration defaults have been cured, up to a maximum additional interest rate of 0.5% per annum. We will pay such additional interest on regular interest payment dates. Such additional interest will be in addition to any other interest payable from time to time with respect to the 2015 Notes and the Exchange Notes.

All references in the Indenture, in any context, to any interest or other amount payable on or with respect to the Notes shall be deemed to include any additional interest pursuant to the registration rights agreement.

If we effect the exchange offer, we will be entitled to close the exchange offer 30 days after the commencement thereof provided that we have accepted all 2015 Notes theretofore validly tendered in accordance with the terms of the exchange offer. 2015 Notes will be validly tendered if tendered in accordance with the terms of the exchange offer as detailed under “—Procedures for Tendering 2015 Notes.”

Each 2015 Note (and in the case of clause (ii) below, each Exchange Note) will remain a “Transfer Restricted Note” until the earliest of (i) the date on which such Transfer Restricted Note has been exchanged by a person other than a broker-dealer for a freely transferable Exchange Note in the exchange offer, (ii) following the exchange by a broker-dealer in the exchange offer of a 2015 Note for an Exchange Note, the date on which such Exchange Note is sold to a purchaser who receives from such broker-dealer on or prior to the date of such sale a copy of this prospectus, (iii) the date on which such 2015 Note has been effectively registered under the Securities Act and disposed of in accordance with the shelf registration statement and (iv) the date on which such 2015 Note is disposed of to the public in accordance with Rule 144 under the Securities Act.

Background of the Exchange Offer

We issued $350.0 million aggregate principal amount of the 2015 Notes on April 21, 2015. The 2015 Notes were offered and sold in the United States only to qualified institutional buyers in reliance on Rule 144A under the Securities Act, and to certain non-U.S. persons in transactions outside the United States in reliance on Regulation S under the Securities Act based on the representations and agreements of the qualified institutional buyers and certain non-U.S. persons made in connection with their purchase of the 2015 Notes. The terms of the Exchange Notes and the 2015 Notes will be identical in all material respects, except for transfer restrictions and registration rights that will not apply to the Exchange Notes and different administrative terms. Cash interest is payable on the Exchange Notes on May 1 and November 1 of each year, beginning on November 1, 2015. Interest on the Exchange Notes will accrue from the last interest payment date with respect to the 2015 Notes and, if no interest has been paid on the 2015 Notes, from May 1, 2015. The Exchange Notes will mature on May 1, 2023.

In order to exchange your 2015 Notes for the Exchange Notes containing no transfer restrictions in the exchange offer, you will be required to make the following representations:

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Upon the terms and subject to the conditions set forth in this prospectus and in the related letter of transmittal, we will accept for exchange any 2015 Notes validly tendered and not validly withdrawn in the exchange offer, and the exchange agent will deliver the Exchange Notes promptly after the expiration date of the exchange offer. 2015 Notes will be validly tendered and not validly withdrawn if they are tendered in accordance with the terms of the exchange offer as detailed under “—Procedures for Tendering 2015 Notes” and not withdrawn in accordance with the terms of the exchange offer as detailed under “—Withdrawal of Tenders.” We expressly reserve the right to delay acceptance, subject to Rule 14e-1(c) under the Exchange Act, of any of the tendered 2015 Notes or terminate the exchange offer and not accept for exchange any tendered 2015 Notes not already accepted if any condition set forth under “—Conditions to the Exchange Offer” have not been satisfied or waived by us or do not comply, in whole or in part, with the securities laws or changes in any applicable law.

If you tender your 2015 Notes, you will not be required to pay brokerage commissions or fees or, subject to the instructions in the letter of transmittal, transfer taxes with respect to the exchange of the 2015 Notes.

Expiration Date; Extensions; Termination; Amendments

The exchange offer will expire at midnight, New York City time, on                     , 2015, unless we extend it. We expressly reserve the right to extend the exchange offer on a daily basis or for such period or periods as we may determine in our sole discretion from time to time by giving oral, confirmed in writing, or written notice to the exchange agent and by making a public announcement by press release to Businesswire prior to 9:00 a.m., New York City time, on the first business day following the scheduled expiration date. During any extension of the exchange offer, all 2015 Notes previously tendered, not validly withdrawn and not accepted for exchange will remain subject to the exchange offer and may be accepted for exchange by us.

To the extent we are legally permitted to do so, we expressly reserve the absolute right, in our sole discretion, but are not required, to:

Any waiver of any condition of or amendment to the exchange offer will apply to all 2015 Notes tendered, regardless of when or in what order the 2015 Notes were tendered. If we make a material change in the terms of the exchange offer or if we waive a material condition of the exchange offer, we will disseminate additional exchange offer materials, and we will extend, if necessary, the expiration date of the exchange offer such that at least five business days remain in the exchange offer following notice of the material change.

We expressly reserve the right, in our sole discretion, to terminate the exchange offer if any of the conditions set forth under “—Conditions to the Exchange Offer” exist. Any such termination will be followed promptly by a public announcement. In the event we terminate the exchange offer, we will give immediate notice to the exchange agent, and all 2015 Notes previously tendered and not accepted for exchange will be returned promptly to the tendering holders.

In the event that the exchange offer is withdrawn or otherwise not completed, the Exchange Notes will not be given to holders of 2015 Notes who have validly tendered their 2015 Notes. We will return any 2015 Notes that have been tendered for exchange but that are not exchanged to their holder without cost to the holder, or, in the case of the 2015 Notes tendered by book-entry transfer into the exchange agent’s account at a book-entry transfer facility under the procedure set forth under “—Procedures for Tendering 2015 Notes—Book-Entry Transfer,” such 2015 Notes will be credited to the account maintained at such book-entry transfer facility from

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which such 2015 Notes were delivered, unless otherwise requested by such holder under “Special Delivery Instructions” in the letter of transmittal, promptly following the exchange date or the termination of the exchange offer.

Resale of the Exchange Notes

Based on interpretations of the SEC set forth in no-action letters issued to third parties, we believe that the Exchange Notes issued under the exchange offer in exchange for the 2015 Notes may be offered for resale, resold and otherwise transferred by you without compliance with the registration and prospectus delivery provisions of the Securities Act, if:

If you tender 2015 Notes in the exchange offer with the intention of participating in any manner in a distribution of the Exchange Notes:

Unless an exemption from registration is otherwise available, any security holder intending to distribute the Exchange Notes should be covered by an effective registration statement under the Securities Act containing the selling security holder’s information required by Item 507 of Regulation S-K. This prospectus may be used for an offer to resell, a resale or other re-transfer of the Exchange Notes only as specifically set forth in the section captioned “Plan of Distribution.” Only broker-dealers that acquired the 2015 Notes as a result of market-making activities or other trading activities may participate in the exchange offer. Each broker-dealer that receives the Exchange Notes for its own account in exchange for 2015 Notes, where such 2015 Notes were acquired by such broker-dealer as a result of market-making activities or other trading activities, must acknowledge that it will deliver a prospectus in connection with any resale of the Exchange Notes. Please read the section captioned “Plan of Distribution” for more details regarding the transfer of the Exchange Notes.

Acceptance of 2015 Notes for Exchange

We will accept for exchange 2015 Notes validly tendered pursuant to the exchange offer, or defectively tendered, if such defect has been waived by us, after the later of:

Except as specified above, we will not accept 2015 Notes for exchange subsequent to the expiration date of the exchange offer. Tenders of 2015 Notes will be accepted only in aggregate principal amounts equal to $1,000 or integral multiples thereof.

We expressly reserve the right, in our sole discretion, to:

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In all cases, the Exchange Notes will be issued only after receipt by the exchange agent prior to the expiration of the exchange offer of (i) certificates representing 2015 Notes, or confirmation of book-entry transfer, (ii) a letter of transmittal, properly completed and duly executed or a manually signed facsimile thereof, and (iii) any other required documents in accordance with instructions set forth under “—Procedures for Tendering 2015 Notes” and in the letter of transmittal provided with this prospectus. For purposes of the exchange offer, we will be deemed to have accepted for exchange validly tendered 2015 Notes, or defectively tendered 2015 Notes with respect to which we have waived such defect, if, as and when we give oral, confirmed in writing, or written notice to the exchange agent. Promptly after the expiration date, we will deposit the Exchange Notes with the exchange agent, who will act as agent for the tendering holders for the purpose of receiving the Exchange Notes and transmitting them to the holders. The exchange agent will deliver the Exchange Notes to holders of 2015 Notes accepted for exchange after the exchange agent receives the Exchange Notes.

If we delay acceptance for exchange of validly tendered 2015 Notes or we are unable to accept for exchange validly tendered 2015 Notes, then the exchange agent may, nevertheless, on its behalf, retain tendered 2015 Notes, without prejudice to our rights described in this prospectus under the captions “—Expiration Date; Extensions; Termination; Amendments,” “—Conditions to the Exchange Offer” and “—Withdrawal of Tenders,” subject to Rule 14e-1 under the Exchange Act, which requires that an offeror pay the consideration offered or return the securities deposited by or on behalf of the holders thereof promptly after the termination or withdrawal of a tender offer.

If any tendered 2015 Notes are not accepted for exchange, or if certificates are submitted evidencing more 2015 Notes than those that are tendered, certificates evidencing 2015 Notes that are not exchanged will be returned, without expense, to the tendering holder, or, in the case of the 2015 Notes tendered by book-entry transfer into the exchange agent’s account at a book-entry transfer facility under the procedure set forth under “—Procedures for Tendering 2015 Notes—Book-Entry Transfer,” such 2015 Notes will be credited to the account maintained at such book-entry transfer facility from which such 2015 Notes were delivered, unless otherwise requested by such holder under “Special Delivery Instructions” in the letter of transmittal, promptly following the exchange date or the termination of the exchange offer.

Tendering holders of 2015 Notes exchanged in the exchange offer will not be obligated to pay brokerage commissions or transfer taxes with respect to the exchange of their 2015 Notes other than as described under the caption “—Transfer Taxes” or as set forth in the letter of transmittal. We will pay all other charges and expenses in connection with the exchange offer.

Procedures for Tendering 2015 Notes

Any beneficial owner whose 2015 Notes are registered in the name of a broker, dealer, commercial bank, trust company or other nominee or held through a book-entry transfer facility and who wishes to tender 2015 Notes should contact such registered holder promptly and instruct such registered holder to tender 2015 Notes on such beneficial owner’s behalf. If you are a beneficial holder and you wish to tender your 2015 Notes on your own behalf, you must, prior to delivering the letter of transmittal and your 2015 Notes to the exchange agent, either make appropriate arrangements to register ownership of your 2015 Notes in your own name or obtain a properly completed bond power from the registered holder. The transfer of registered ownership may take considerable time.

Tender of 2015 Notes Held Through The Depository Trust Company

The exchange agent and The Depository Trust Company, or DTC, have confirmed that the exchange offer is eligible for the DTC automated tender offer program. Accordingly, DTC participants may electronically transmit

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their acceptance of the exchange offer by causing DTC to transfer 2015 Notes to the exchange agent in accordance with DTC’s automated tender offer program procedures for transfer. DTC will then send an agent’s message to the exchange agent.

The term “agent’s message” means a message transmitted by DTC and received by the exchange agent that forms part of the book-entry confirmation. The agent’s message states that DTC has received an express acknowledgment from the participant in DTC tendering 2015 Notes that are the subject of that book-entry confirmation, that the participant has received and agrees to be bound by the terms of the letter of transmittal, and that we may enforce such agreement against such participant.

Tender of 2015 Notes Held in Physical Form

For a holder to validly tender 2015 Notes held in physical form:

Letters of transmittal and 2015 Notes should be sent only to the exchange agent, and not to us or to any book-entry transfer facility.

The method of delivery of 2015 Notes, letters of transmittal and all other required documents to the exchange agent is at the election and risk of the holder tendering 2015 Notes. Delivery of such documents will be deemed made only when actually received by the exchange agent. If such delivery is by mail, we suggest that the holder use properly insured, registered mail with return receipt requested, and that the mailing be made sufficiently in advance of the expiration date of the exchange offer to permit delivery to the exchange agent prior to such date. No alternative, conditional or contingent tenders of 2015 Notes will be accepted.

Signature Guarantees

A signature on a letter of transmittal or a notice of withdrawal must be guaranteed by an eligible institution. Eligible institutions include banks, brokers, dealers, municipal securities dealers, municipal securities brokers, government securities dealers, government securities brokers, credit unions, national securities exchanges, registered securities associations, clearing agencies and savings associations. The signature need not be guaranteed by an eligible institution if the 2015 Notes are tendered:

If the letter of transmittal is signed by a person other than the registered holder of any 2015 Notes, the 2015 Notes must be endorsed or accompanied by a properly completed bond power. The bond power must be signed by the registered holder as the registered holder’s name appears on the 2015 Notes and an eligible institution must guarantee the signature on the bond power.

If the letter of transmittal or any 2015 Notes or bond powers are signed by trustees, executors, administrators, guardians, attorneys-in-fact, officers of corporations or others acting in a fiduciary or

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representative capacity, these persons should so indicate when signing. Unless we waive this requirement, they should also submit evidence satisfactory to us of their authority to deliver the letter of transmittal.

Book-Entry Transfer

The exchange agent will seek to establish a new account or utilize an existing account with respect to the 2015 Notes at DTC promptly after the date of this prospectus. Any financial institution that is a participant in the book-entry transfer facility system and whose name appears on a security position listing it as the owner of the 2015 Notes may make book-entry delivery of 2015 Notes by causing the book-entry transfer facility to transfer such 2015 Notes into the exchange agent’s account. However, although delivery of 2015 Notes may be effected through book-entry transfer into the exchange agent’s account at a book-entry transfer facility, a letter of transmittal, properly completed and duly executed or a manually signed facsimile thereof, in accordance with instructions set forth under “—Procedures for Tendering 2015 Notes” and in the letter of transmittal provided with this prospectus, must be received by the exchange agent at its address set forth in this prospectus on or prior to the expiration date of the exchange offer. The confirmation of a book-entry transfer of 2015 Notes into the exchange agent’s account at a book-entry transfer facility is referred to in this prospectus as a “book-entry confirmation.” Delivery of documents to the book-entry transfer facility in accordance with that book-entry transfer facility’s procedures does not constitute delivery to the exchange agent.

Other Matters

Exchange Notes will be issued in exchange for 2015 Notes accepted for exchange only after receipt by the exchange agent prior to expiration of the exchange offer of:

We will decide all questions as to the form of all documents and the validity, including time of receipt, and acceptance of all tenders of 2015 Notes, the determination of which shall be final and binding. Alternative, conditional or contingent tenders of 2015 Notes will not be considered valid. We reserve the absolute right to reject any or all tenders of 2015 Notes that are not in proper form or the acceptance of which, in our opinion, would be unlawful. We also reserve the right to waive any defects, irregularities or conditions of tender as to any particular 2015 Notes.

Unless waived by us, any defect or irregularity in connection with tenders of 2015 Notes must be cured within the time that we determine. Tenders of 2015 Notes will not be deemed to have been made until all defects and irregularities have been waived by us or cured. Neither us, the exchange agent, nor any other person will be under any duty to give notice of any defects or irregularities in tenders of 2015 Notes, or will incur any liability to holders of 2015 Notes for failure to give any such notice.

By signing or agreeing to be bound by the letter of transmittal, you will represent to us that, among other things:

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Withdrawal of Tenders

Except as otherwise provided in this prospectus, you may withdraw your tender of 2015 Notes at any time prior to the expiration date of the exchange offer.

For a withdrawal to be effective:

Any notice of withdrawal must:

If certificates for the 2015 Notes have been delivered or otherwise identified to the exchange agent, then, prior to the release of those certificates, the withdrawing holder must also submit:

If the 2015 Notes have been tendered pursuant to the procedure for book-entry transfer described above, any notice of withdrawal must specify the name and number of the account at DTC to be credited with the withdrawn 2015 Notes and otherwise comply with the procedures of DTC.

We will determine all questions as to the validity, form and eligibility, including time of receipt, of notices of withdrawal, and our determination shall be final and binding on all parties. We will deem any 2015 Notes so withdrawn not to have been validly tendered for exchange for purposes of the exchange offer.

We will return any 2015 Notes that have been tendered for exchange but that are not exchanged to their holder without cost to the holder. In the case of 2015 Notes tendered by book-entry transfer into the exchange agent’s account at DTC, according to the procedures described above, those 2015 Notes will be credited to an account maintained with DTC for the 2015 Notes. This return or crediting will take place promptly after withdrawal, rejection of tender or termination of the exchange offer. You may re-tender properly withdrawn 2015 Notes by following one of the procedures described under “—Procedures for Tendering 2015 Notes” at any time on or prior to the expiration date of the exchange offer.

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Conditions to the Exchange Offer

Despite any other term of the exchange offer, we will not be required to accept for exchange any 2015 Notes and we may terminate or amend the exchange offer as provided in this prospectus before the expiration of the exchange offer if in our reasonable judgment:

We will not be obligated to accept for exchange the 2015 Notes of any holder that has not made to us:

We expressly reserve the right, at any time or at various times, to extend the period of time during which the exchange offer is open. Consequently, we may delay acceptance of any 2015 Notes, subject to Rule 14e-1(c) under the Exchange Act, by giving oral or written notice of an extension to their holders. During an extension, all 2015 Notes previously tendered will remain subject to the exchange offer, and we may accept them for exchange. We will return any 2015 Notes that we do not accept for exchange without expense to their tendering holder promptly after the expiration or termination of the exchange offer.

We expressly reserve the right to amend or terminate the exchange offer and to reject for exchange any 2015 Notes not previously accepted for exchange, upon the occurrence of any of the conditions of the exchange offer specified above. By public announcement we will give oral or written notice of any extension, amendment, non-acceptance or termination to the holders of the 2015 Notes in accordance with the requirements of Rule 14e-1(d) of the Exchange Act. If we amend the exchange offer in a manner that we consider material, we will disclose the amendment in the manner required by applicable law. In the event of a material change in the exchange offer, including the waiver of a material condition, we will extend, if necessary, the expiration date of the exchange offer such that at least five business days remain in the exchange offer following notice of the material change.

We may assert these conditions regardless of the circumstances that may give rise to them or waive them in whole or in part at any time or at various times in our sole discretion. If we fail at any time to exercise any of the foregoing rights, this failure will not constitute a waiver of that right. Each of these rights will be deemed an ongoing right that we may assert at any time or at various times.

We will not accept for exchange any 2015 Notes tendered, and will not issue the Exchange Notes in exchange for any 2015 Notes, if at any time a stop order is threatened or in effect with respect to the registration statement of which this prospectus constitutes a part or the qualification of the Indenture under the Trust Indenture Act of 1939, as amended.

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Transfer Taxes

We will pay all transfer taxes, if any, applicable to the transfer and exchange of 2015 Notes pursuant to the exchange offer. The tendering holder, however, will be required to pay any transfer taxes, whether imposed on the record holder or any other person, if:

Consequences of Failure to Exchange

If you do not exchange your 2015 Notes for the Exchange Notes in the exchange offer, you will remain subject to restrictions on transfer of the 2015 Notes:

In general, you may not offer or sell the 2015 Notes unless they are registered under the Securities Act or if the offer or sale is exempt from registration under the Securities Act and applicable state securities laws. Except as required by the registration rights agreement relating to the 2015 Notes, we do not intend to register resales of the 2015 Notes under the Securities Act. Based on interpretations of the SEC, you may offer for resale, resell or otherwise transfer the Exchange Notes issued in the exchange offer without compliance with the registration and prospectus delivery provisions of the Securities Act, provided that:

If you tender 2015 Notes in the exchange offer for the purpose of participating in a distribution of the Exchange Notes:

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Exchange Agent

Wells Fargo Bank, N.A. has been appointed as exchange agent for the exchange offer. You should direct questions and requests for assistance, requests for additional copies of this prospectus, the letter of transmittal or any other documents to the exchange agent. You should send certificates for 2015 Notes, letters of transmittal and any other required documents to the exchange agent addressed as follows:

Delivery of a letter of transmittal to an address other than as shown above or transmission via facsimile other than as set forth above does not constitute valid delivery of such letter of transmittal.

Other

Participation in the exchange offer is voluntary, and you should carefully consider whether to exchange the 2015 Notes for the Exchange Notes. We urge you to consult your financial and tax advisors in making your own decision on what action to take.

We may in the future seek to acquire untendered 2015 Notes in open market or privately negotiated transactions, through subsequent exchange offers or otherwise, on terms that may differ from the terms of this exchange offer. We have no present plans to acquire any 2015 Notes that are not tendered in the exchange offer or to file a registration statement to permit resales of any untendered 2015 Notes.

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CAPITALIZATION

The following table sets forth our unaudited cash and cash equivalents and capitalization as of June 30, 2015:

You should read this table in conjunction with the information contained in our audited consolidated financial statements and notes thereto, our unaudited consolidated financial statements and notes thereto and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the year ended December 31, 2014 and our Quarterly Report on Form 10-Q for the quarter ended June 30, 2015, and the information contained in the subsequent filings we make with the SEC, which are incorporated by reference herein.

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DESCRIPTION OF OTHER INDEBTEDNESS

Credit Facility

On December 27, 2013, we entered into an amended and restated credit agreement with The Bank of Nova Scotia, as administrative agent, sole lead arranger and sole bookrunner, Amegy Bank National Association, as syndication agent, KeyBank National Association, as documentation agent, and other lenders, which we refer to as the amended and restated credit agreement or the secured revolving credit facility. The amended and restated credit agreement provides for a maximum facility amount of $1.5 billion and matures on June 6, 2018.

On April 23, 2014, we entered into a first amendment to the amended and restated credit agreement. The first amendment increased the letter of credit sublimit from $20.0 million to $70.0 million and provided for an increase in the borrowing base from $150.0 million to $275.0 million. The first amendment also made certain changes to the lenders and their respective lending commitments thereunder. On November 26, 2014, we entered into a second amendment to the amended and restated credit agreement. The second amendment changed the definition of EBITDAX (as defined in the amended and restated credit agreement) to exclude proceeds from the disposition of equity method investments and changed the ratio of funded debt to EBITDAX to be the ratio of net funded debt to EBITDAX. Net funded debt is funded debt less the amount of cash and short-term investments at the end of the relevant fiscal quarter. The second amendment requires the ratio of net funded debt to EBITDAX to be less than 3.50 to 1.00 for the period December 31, 2014 through June 30, 2015 and then less than 3.25 to 1.00 for the periods thereafter. Further, the second amendment increased the letter of credit sublimit from $70.0 million to $125.0 million and provided for an increase in the borrowing base availability from $275.0 million to $450.0 million. As of April 10, 2015, we entered into a third amendment to the amended and restated credit agreement. The third amendment increased the borrowing base from $450.0 million to $575.0 million and increased our basket for unsecured debt issuances to $1.2 billion. The third amendment also made certain changes to the lenders and their respective lending commitments thereunder. On May 29, 2015, we entered into a fourth amendment to our secured revolving credit facility. The fourth amendment increased the letter of credit sublimit from $125.0 million to $150.0 million. Additionally, we received consent from our lenders to incur certain new secured indebtedness, limited to $30.0 million, to finance the construction of our new Oklahoma City headquarters. The lenders also agreed to waive certain provisions of the amended and restated credit agreement that may prohibit the construction loan.

Our secured revolving credit facility is secured by substantially all of our assets. Our wholly-owned subsidiaries (including Grizzly Holdings, which is not a guarantor of the Notes) guarantee our obligations under our secured revolving credit facility. As of June 30, 2015, we had no balance outstanding under our secured revolving credit facility and total funds available for borrowing, after giving effect to an aggregate of $92.7 million of letters of credit, were $482.3 million. We used a portion of the net proceeds from our concurrent April 2015 equity offering and notes offering to repay all borrowings outstanding under our secured revolving credit facility at that time, which borrowings were used to fund our exploration and development activities and for general corporate purposes, including the acquisition of oil and natural gas properties. As of the date of this preliminary prospectus, we had no borrowings and $135.3 million of letters of credit outstanding under our secured revolving credit facility.

Advances under our secured revolving credit facility may be in the form of either base rate loans or eurodollar loans. The interest rate per annum for base rate loans is equal to (1) the applicable rate, which ranges from 0.50% to 1.50%, plus (2) the highest of: (a) the federal funds rate plus 0.50%, (b) the rate of interest in effect for such day as publicly announced from time to time by agent as its “prime rate,” and (c) the eurodollar rate for an interest period of one month plus 1.00%. The interest rate per annum for eurodollar loans is equal to (1) the applicable rate, which ranges from 1.50% to 2.50%, plus (2) the London interbank offered rate as administered by ICE Benchmark Administration (or any other person that takes over the administration of such rate) that appears on pages LIBOR01 or LIBOR02 of the Reuters screen that displays such rate for deposits in U.S. dollars, or, if such rate is not available, the rate determined by agent to be the offered rate on such other page or other service that displays an average London interbank offered rate as administered by ICE Benchmark

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Administration (or any other person that takes over administration of such rate) for deposits in U.S. dollars, or, if such rate is not available, the average quotations for three major New York money center banks of whom the agent shall inquire as the “London Interbank Offered Rate” for deposits in U.S. dollars. At April 21, 2015 (the last date on which we had borrowings outstanding under our secured revolving credit facility), amounts borrowed under such facility bore interest at the eurodollar rate (2.18%).

Our secured revolving credit facility contains customary negative covenants including, but not limited to, restrictions on our and our subsidiaries’ ability to: incur indebtedness; grant liens; pay dividends and make other restricted payments; make investments; make fundamental changes; enter into swap contracts; dispose of assets; change the nature of their business; and enter into transactions with their affiliates. The negative covenants are subject to certain exceptions as specified in our secured revolving credit facility. Our secured revolving credit facility also contains certain other covenants, including, but not limited to the following financial covenants: (1) the ratio of net funded debt to EBITDAX (net income, excluding (i) any non-cash revenue or expense associated with swap contracts resulting from ASC 815 and (ii) any cash or non-cash revenue or expense attributable to minority investments plus without duplication and, in the case of expenses, to the extent deducted from revenues in determining net income, the sum of (a) the aggregate amount of consolidated interest expense for such period, (b) the aggregate amount of income, franchise, capital or similar tax expense (other than ad valorem taxes) for such period, (c) all amounts attributable to depletion, depreciation, amortization and asset or goodwill impairment or writedown for such period, (d) all other non-cash charges, (e) exploration costs deducted in determining net income under successful efforts accounting, (f) actual cash distributions received from minority investments, (g) to the extent actually reimbursed by insurance, expenses with respect to liability on casualty events or business interruption, and (h) all reasonable transaction expenses related to dispositions and acquisitions of assets, investments and debt and equity offerings (provided that expenses related to any unsuccessful dispositions will be limited to $3.0 million in the aggregate) for a twelve-month period may not be greater than 3.50 to 1.00 for the period December 31, 2014 through June 30, 2015 and 3.25 to 1.00 for the twelve-month period ending September 30, 2015 and periods thereafter, in each case calculated at the end of each fiscal quarter; and (2) the ratio of EBITDAX to interest expense for a twelve-month period, calculated at the end of each fiscal quarter, may not be less than 3.00 to 1.00. We were in compliance with these financial covenants at June 30, 2015.

Senior Notes

In October 2012, December 2012 and August 2014, we issued an aggregate of $600.0 million in principal amount of our 7.750% senior notes due 2020 under an indenture among us, our subsidiary guarantors and Wells Fargo Bank, National Association, as the trustee, all of which were subsequently exchanged for substantially identical exchange notes in the aggregate principal amount of $600.0 million, except that such exchange notes were registered under the Securities Act and have different administrative terms. These senior notes are treated as a single class of debt securities under one indenture and are referred to collectively as the 7.750% Notes. Interest on the 7.750% Notes accrues at a rate of 7.750% per annum on the outstanding principal amount from October 17, 2012, payable semi-annually on May 1 and November 1 of each year, commencing on May 1, 2013. The 7.750% Notes are senior unsecured obligations and rank equally in the right of payment with all of our other senior indebtedness and senior in right of payment to any of our future subordinated indebtedness. We may redeem some or all of the 7.750% Notes at any time on or after November 1, 2016, at the redemption prices listed in the 7.750% Note indenture. Prior to November 1, 2016, we may redeem the 7.750% Notes at a price equal to 100% of the principal amount plus a “make-whole” premium. In addition, prior to November 1, 2015, we may redeem up to 35% of the aggregate principal amount of the 7.750% Notes with the net proceeds of certain equity offerings, provided that at least 65% of the aggregate principal amount of the 7.750% Notes initially issued remains outstanding immediately after such redemption.

In April 2015, we issued $350.0 million in aggregate principal amount of our 6.625% senior unsecured notes due 2023, which we refer to as the 2015 Notes and, together with the 7.750% Notes, the Existing Notes, to qualified institutional buyers pursuant to Rule 144A under the Securities Act and to certain non-U.S. persons in

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accordance with Regulation S under the Securities Act. We used a portion of the net proceeds from the sale of the 2015 Notes, together with the net proceeds from our concurrent equity offering, to repay all amounts outstanding at such time under our secured revolving credit facility and intend to use the remaining net proceeds from these offerings to fund our pending acquisition of Paloma, and for general corporate purposes, including the funding of a portion of our 2015 capital development plans. See “Summary—Recent Developments—Our Pending Acquisition of Paloma.”

The 2015 Notes were issued under the Indenture among us, our subsidiary guarantors and Wells Fargo Bank, N.A., as trustee. Interest on the 2015 Notes accrues at a rate of 6.625% per annum on the outstanding principal amount thereof from April 21, 2015, payable semi-annually on May 1 and November 1 of each year, commencing on November 1, 2015. The 2015 Notes will mature on May 1, 2023. For a more detailed description of the 2015 Notes, see “Description of the Exchange Notes,” as the Exchange Notes will have terms substantially identical to those of the 2015 Notes, except that the Exchange Notes will have a different date of issuance, will not bear legends restricting their transfer, and will not generally be entitled to the registration rights.

All of our existing and future restricted subsidiaries that guarantee our secured revolving credit facility guarantee the Existing Notes, except that the Existing Notes are not guaranteed by Grizzly Holdings, Inc., which is an unrestricted subsidiary under the indentures that govern the Existing Notes, and will not be guaranteed by any of our future unrestricted subsidiaries. The guarantees rank equally in the right of payment with all of the senior indebtedness of the subsidiary guarantors and senior in the right of payment to any future subordinated indebtedness of the subsidiary guarantors. The Existing Notes and the guarantees are effectively subordinated to all of our and the subsidiary guarantors’ secured indebtedness (including all borrowings and other obligations under our secured revolving credit facility) to the extent of the value of the collateral securing such indebtedness, and structurally subordinated to all indebtedness and other liabilities of any of our subsidiaries that do not guarantee the Existing Notes.

If we experience a change of control (as defined in the indentures relating to the 7.750% Notes and the 2015 Notes), we will be required to make an offer to repurchase the Existing Notes at a price equal to 101% of the principal amount thereof, plus accrued and unpaid interest, if any, to the date of repurchase. If we sell certain assets and fail to use the proceeds in a manner specified in our senior note indentures, we will be required to use the remaining proceeds to make an offer to repurchase the Existing Notes at a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest, if any, to the date of repurchase. The indentures relating to the 7.750% Notes and the 2015 Notes contain certain covenants that, subject to certain exceptions and qualifications, among other things, limit our ability and the ability of our restricted subsidiaries to incur or guarantee additional indebtedness, make certain investments, declare or pay dividends or make distributions on capital stock, prepay subordinated indebtedness, sell assets including capital stock of restricted subsidiaries, agree to payment restrictions affecting our restricted subsidiaries, consolidate, merge, sell or otherwise dispose of all or substantially all of our assets, enter into transactions with affiliates, incur liens, engage in business other than the oil and gas business, and designate certain of our subsidiaries as unrestricted subsidiaries. Under the Indenture relating to the 2015 Notes, certain of these covenants are subject to termination upon the occurrence of certain events, including in the event the 2015 Notes are ranked as “investment grade.” See “Description of the Exchange Notes.”

In connection with our April 2015 notes offering, we and our subsidiary guarantors entered into a registration rights agreement with the representatives of the initial purchasers, dated as of April 21, 2015, pursuant to which we agreed to file this registration statement with respect to an offer to exchange the 2015 Notes for the Exchange Notes. Under the registration rights agreement, we also agreed to use our commercially reasonable efforts to have this registration statement declared effective by the SEC on or prior to the 330th day after the issue date of the 2015 Notes and to keep the exchange offer open for not less than 30 days (or longer if required by applicable law). We may be required to file a shelf registration statement to cover resales of the 2015 Notes under certain circumstances. If we fail to satisfy these obligations under the registration rights agreement, we agreed to pay additional interest to the holders of the 2015 Notes as specified in the registration rights agreement. See “The Exchange Offer—Purpose and Effect of this Exchange Offer.”

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Building Loans

In March 2011, we entered into a new building loan agreement for the office building we occupy in Oklahoma City, Oklahoma. The new loan agreement refinanced the $2.4 million outstanding under the previous building loan agreement. The new agreement matures in February 2016 and bears interest at the rate of 5.82% per annum. The new building loan agreement requires monthly interest and principal payments of approximately $22,000 and is collateralized by the Oklahoma City office building and associated land. As of June 30, 2015, approximately $1.7 million was outstanding under this loan.

Construction Loan

On June 4, 2015, we entered into a construction loan agreement with InterBank for the construction of a new corporate headquarters in Oklahoma City. The construction loan allows for a maximum principal amount of $24.5 million to be drawn. Interest accrues daily on the outstanding principal balance at a fixed rate of 4.50% per annum and is payable on the last day of the month beginning June 30, 2015 through May 31, 2017. Monthly interest and principal payments are due beginning June 30, 2017, with the final payment due June 4, 2025. As of June 30, 2015, we had not drawn on this loan.

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DESCRIPTION OF THE EXCHANGE NOTES

On April 21, 2015, Gulfport Energy Corporation issued $350.0 million aggregate principal amount of 6.625% Senior Notes due 2023 (the “2015 Notes”), under an indenture, as may be amended or supplemented from time to time (the “Indenture”), among itself, the Subsidiary Guarantors and Wells Fargo Bank, N.A., as Trustee. In the exchange offer, Gulfport Energy Corporation is offering to exchange up to $350.0 million aggregate principal amount of its 6.625% Senior Notes due 2023 (the “Exchange Notes”), which have been registered under the Securities Act of 1933, as amended, or the Securities Act, and will be issued under the Indenture, for an equal principal amount of the 2015 Notes. The 2015 Notes and the Exchanges Notes are collectively referred to herein as the Notes. The terms of the Exchange Notes include those stated in the Indenture and those made part of the Indenture by reference to the Trust Indenture Act. The aggregate principal amount of notes issuable under the Indenture is unlimited, although the issuance of the Exchange Notes in this exchange offer will be limited to an aggregate principal amount of $350.0 million. The form of Exchange Notes will be identical in all material respects to that of the 2015 Notes except that the Exchange Notes have been registered under the Securities Act and, therefore, will not bear legends restricting their transfer and the registration rights will generally not apply to the Exchange Notes. The Exchange Notes will not represent new Indebtedness of the Company.

Certain terms used in this description are defined under the subheading “—Certain Definitions.” In this description, the words “Company,” “we” and “our” refer only to Gulfport Energy Corporation and not to any of its subsidiaries.

The following description is only a summary of the material provisions of the Indenture. We urge you to read the Indenture because it, not this description, defines your rights as holders of the Exchange Notes. You may request a copy of the Indenture at our address set forth under the heading “Where You Can Find More Information.”

Brief Description of the Exchange Notes

The Exchange Notes, like the 2015 Notes:

Principal, Maturity and Interest

We will issue the Exchange Notes with a maximum aggregate principal amount of $350.0 million. The Company will issue the Exchange Notes in minimum denominations of 2,000 and any greater integral multiple of 1,000. The Exchange Notes will mature on May 1, 2023. Subject to our compliance with the covenant described under the subheading “—Certain Covenants—Limitation on Indebtedness,” we are permitted to issue more notes from time to time under the Indenture (the “Additional Notes”). The Exchange Notes, the 2015 Notes that were not exchanged in the Exchange Offer, if any, and all subsequent Additional Notes, if any, will be treated as a single class for all purposes of the Indenture, including waivers, amendments, redemptions and offers to purchase, but a separate CUSIP will be issued for any Additional Notes if the Notes and the Additional Notes are not fungible for U.S. federal income tax purposes. Unless the context otherwise requires, for all purposes of the Indenture and this “Description of the Exchange Notes,” references to the “Notes” include the 2015 Notes, the Exchange Notes and any Additional Notes actually issued.

Interest on the Notes accrues at the rate of 6.625% per annum and is payable semiannually in arrears on May 1 and November 1, commencing on November 1, 2015. Interest on the Exchange Notes will accrue from the

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Issue Date if no interest has been paid on the 2015 Notes, or from the last payment date on the 2015 Notes, if interest has been paid on the 2015 Notes. We will make each interest payment to the holders of record of the Notes on the immediately preceding April 15 and October 15. We will pay interest on overdue principal at 1% per annum in excess of the above rate and will pay interest on overdue installments of interest at such higher rate to the extent lawful.

Interest is computed on the basis of a 360-day year comprised of twelve 30-day months.

Optional Redemption

Except as set forth below and as described under the penultimate paragraph of “Change of Control,” we are not entitled to redeem the Notes at our option.

On and after May 1, 2018, we will be entitled at our option to redeem all or a portion of the Notes upon not less than 30 nor more than 60 days’ notice, at the redemption prices (expressed in percentages of principal amount on the redemption date), plus accrued interest to the redemption date (subject to the right of Holders of record on the relevant record date to receive interest due on the relevant interest payment date), if redeemed during the 12-month period commencing on May 1 of the years set forth below:

In addition, any time prior to May 1, 2018, we will be entitled at our option on one or more occasions to redeem Notes (which includes Additional Notes, if any) in an aggregate principal amount not to exceed 35% of the aggregate principal amount of the Notes (which includes Additional Notes, if any) issued prior to such date at a redemption price (expressed as a percentage of principal amount) of 106.625%, plus accrued and unpaid interest to the redemption date, with an amount equal to the net cash proceeds from one or more Qualifying Equity Offerings; provided, however, that

Prior to May 1, 2018, we will be entitled, at our option, to redeem all or a portion of the Notes at a redemption price equal to 100% of the principal amount of the Notes plus the Applicable Premium as of, and accrued and unpaid interest to, the redemption date (subject to the right of Holders on the relevant record date to receive interest due on the relevant interest payment date). Notice of such redemption must be sent to each Holder’s registered address, not less than 30 nor more than 60 days prior to the redemption date.

“Applicable Premium” means with respect to a Note at any redemption date, the greater of (1) 1.00% of the principal amount of such Note and (2) the excess of (A) the present value at such redemption date of (i) the redemption price of such Note on May 1, 2018 (such redemption price being described in the second paragraph in this “—Optional Redemption” section exclusive of any accrued interest) plus (ii) all required remaining scheduled interest payments due on such Note through May 1, 2018 (but excluding accrued and unpaid interest to the redemption date), computed using a discount rate equal to the Adjusted Treasury Rate, over (B) the principal amount of such Note on such redemption date.

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“Adjusted Treasury Rate” means, with respect to any redemption date, (1) the yield, under the heading which represents the average for the immediately preceding week, appearing in the most recently published statistical release designated “H.15(519)” or any successor publication which is published weekly by the Board of Governors of the Federal Reserve System and which establishes yields on actively traded United States Treasury securities adjusted to constant maturity under the caption “Treasury Constant Maturities,” for the maturity corresponding to the Comparable Treasury Issue (if no maturity is within three months before or after May 1, 2018, yields for the two published maturities most closely corresponding to the Comparable Treasury Issue shall be determined and the Adjusted Treasury Rate shall be interpolated or extrapolated from such yields on a straight line basis, rounding to the nearest month) or (2) if such release (or any successor release) is not published during the week preceding the calculation date or does not contain such yields, the rate per year equal to the semi-annual equivalent yield to maturity of the Comparable Treasury Issue (expressed as a percentage of its principal amount) equal to the Comparable Treasury Price for such redemption date, in each case calculated on the third Business Day immediately preceding the redemption date, in each case, plus 0.50%.

“Comparable Treasury Issue” means the United States Treasury security selected by the Quotation Agent as having a maturity comparable to the remaining term of the Notes from the redemption date to May 1, 2018, that would be utilized, at the time of selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of a maturity most nearly equal to May 1, 2018.

“Comparable Treasury Price” means, with respect to any redemption date, if clause (2) of the Adjusted Treasury Rate definition is applicable, the average of three, or such lesser number as is obtained by the Quotation Agent, Reference Treasury Dealer Quotations for such redemption date.

“Quotation Agent” means the Reference Treasury Dealer appointed by the Company.

“Reference Treasury Dealer” means Credit Suisse Securities (USA) LLC, Scotia Capital (USA) Inc. and their respective successors and assigns and one other nationally recognized investment banking firm selected by the Company that is a primary U.S. Government securities dealer.

“Reference Treasury Dealer Quotations” means with respect to each Reference Treasury Dealer and any redemption date, the average, as determined by the Quotation Agent, of the bid and asked prices for the Comparable Treasury Issue, expressed in each case as a percentage of its principal amount, quoted in writing to the Trustee by such Reference Treasury Dealer at 5:00 p.m., New York City time, on the third Business Day immediately preceding such redemption date.

Selection and Notice of Redemption

If we are redeeming less than all the Notes at any time, the Trustee will select Notes on a pro rata basis to the extent practicable and in accordance with the procedures of DTC.

We will redeem Notes of $2,000 or less in whole and not in part. We will cause notices of redemption to be sent at least 30 but not more than 60 days before the redemption date to each holder of Notes to be redeemed at its registered address, except that redemption notices may be sent more than 60 days prior to the redemption date if the notice is issued in connection with a defeasance of the Notes or a satisfaction and discharge of the Indenture. Any inadvertent defect in the notice of redemption, including an inadvertent failure to give notice, to any Holder selected for redemption will not impair or affect the validity of the redemption of any other Note redeemed in accordance with provisions of the Indenture.

If any Note is to be redeemed in part only, the notice of redemption that relates to that Note will state the portion of the principal amount thereof to be redeemed. We will issue a new Note in a principal amount equal to the unredeemed portion of the original Note in the name of the holder upon cancelation of the original Note. Notes called for redemption become due on the date fixed for redemption; provided that notice of any

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redemption in connection with any Qualifying Equity Offering or other securities offering or any other financing, or in connection with a transaction (or a series of related transactions) that constitute a Change of Control, may, at our discretion, be given prior to the completion thereof and be subject to one or more conditions precedent, including completion of the related Qualifying Equity Offering, securities offering, financing or Change of Control. If a redemption is subject to satisfaction of one or more conditions precedent, the redemption date may be delayed up to 10 Business Days; provided that if such conditions precedent are not satisfied within 10 Business Days of the proposed redemption date, such redemption shall not occur and the notice thereof shall be rescinded. On and after the redemption date, interest ceases to accrue on Notes or portions of them called for redemption.

Mandatory Redemption; Offers to Purchase; Open Market Purchases

We are not required to make any mandatory redemption or sinking fund payments with respect to the Notes. However, under certain circumstances, we may be required to offer to purchase Notes as described under the captions “—Change of Control” and “—Certain Covenants—Limitation on Sales of Assets and Subsidiary Stock.” We may at any time and from time to time purchase Notes in the open market or otherwise.

Guaranties

Each of our existing direct and indirect subsidiaries, other than Grizzly Holdings, Inc., is a Subsidiary Guarantor as of the date of this prospectus. The Subsidiary Guarantors jointly and severally guarantee, on a senior unsecured basis, our obligations under the Notes. The aggregate assets and revenues as of and for the year ended December 31, 2014 attributable to all subsidiaries of the Company that are not providing guarantees constituted less than 5.0% of the Company’s consolidated assets and none of its consolidated revenues as of and for the period ended such date.

Each Subsidiary Guarantor that makes a payment under its Subsidiary Guaranty will be entitled upon payment in full of all guaranteed obligations under the Indenture to a contribution from each other Subsidiary Guarantor in an amount equal to such other Subsidiary Guarantor’s pro rata portion of such payment based on the respective net assets of all the Subsidiary Guarantors at the time of such payment determined in accordance with GAAP.

Each Subsidiary Guaranty contains a provision that purports to limit the obligations of such Subsidiary Guarantor under its Subsidiary Guaranty as necessary to prevent that Subsidiary Guaranty from constituting a fraudulent conveyance under applicable law. See “Risk Factors—Risks Related to the Exchange Notes, the Exchange Offer and Our Other Indebtedness—The guarantees provided by the guarantors may not be enforceable and, under specific circumstances, federal and state courts may void the guarantees and require holders to return payments received from the guarantors.” If a Subsidiary Guaranty were rendered voidable, it could be subordinated by a court to all other indebtedness (including guarantees and other contingent liabilities) of the applicable Subsidiary Guarantor, and, depending on the amount of such indebtedness, a Subsidiary Guarantor’s liability on its Subsidiary Guaranty could be reduced to zero. See “Risk Factors—Risks Related to the Exchange Notes, the Exchange Offer and Our Other Indebtedness.”

Pursuant to the Indenture, a Subsidiary Guarantor may consolidate with or merge with or into, or convey, transfer or lease, in one transaction or a series of transactions, all or substantially all its assets to any other Person to the extent described below under “—Certain Covenants—Merger and Consolidation”; provided, however, that if such other Person is not the Company or a Subsidiary Guarantor, such Subsidiary Guarantor’s obligations under its Subsidiary Guaranty must be expressly assumed by such other Person, except that such assumption will not be required if such other Person is not a Subsidiary of the Company and if in connection therewith the Company provides an Officers’ Certificate to the Trustee to the effect that the Company will comply with its obligations, if any, under the covenant described under “—Certain Covenants—Limitation on Sales of Assets and Subsidiary Stock” in respect of such transaction. Upon any transaction described in the proviso above, the obligor on the related Subsidiary Guaranty will be automatically released from its obligations thereunder.

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The Subsidiary Guaranty of a Subsidiary Guarantor also will be automatically released:

Upon delivery by the Company to the Trustee of an Officers’ Certificate and an Opinion of Counsel to the effect that any of the conditions described above has occurred, the Trustee shall execute any supplemental indenture or other documents reasonably requested by the Company in order to evidence the release of any Guarantor from its obligations under its Subsidiary Guaranty and the Indenture.

Ranking

Senior Indebtedness versus Notes

The indebtedness evidenced by the Notes and the Subsidiary Guaranties is unsecured and ranks pari passu in right of payment with the Senior Indebtedness of the Company and the Subsidiary Guarantors, as the case may be.

As of June 30, 2015:

At June 30, 2015, the borrowing base under the Existing Credit Agreement was $575.0 million.

The Notes and the Subsidiary Guaranties are unsecured obligations of the Company and the Subsidiary Guarantors, respectively. Secured debt and other secured obligations of the Company and of the Subsidiary Guarantors (including obligations with respect to the Existing Credit Agreement) are effectively senior to the Notes and the Subsidiary Guaranties to the extent of the value of the assets securing such debt or other obligations.

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Liabilities of Subsidiaries versus Notes

A portion of our operations is conducted through our subsidiaries. As described above under “—Guaranties,” Subsidiary Guaranties may be released under certain circumstances. In addition, Grizzly Holdings, Inc. is an Unrestricted Subsidiary and therefore is not a Subsidiary Guarantor. Further, our future subsidiaries may not be required to Guarantee the Notes. Claims of creditors of such non-guarantor subsidiaries, including trade creditors and creditors holding indebtedness or Guarantees issued by such non-guarantor subsidiaries, and claims of preferred stockholders of such non-guarantor subsidiaries generally will have priority with respect to the assets and earnings of such non-guarantor subsidiaries over the claims of our creditors, including holders of the Notes. Accordingly, the Notes are effectively subordinated to creditors (including trade creditors) and preferred stockholders, if any, of such non-guarantor subsidiaries.

At June 30, 2015, the total liabilities of our subsidiaries (other than the Subsidiary Guarantors as of the Issue Date, but including Grizzly Holdings, Inc.) were approximately $0.1 million, including trade payables. Although the Indenture limits the incurrence of Indebtedness and preferred stock by certain of our subsidiaries, such limitation is subject to a number of significant qualifications and does not apply at all to Unrestricted Subsidiaries. Moreover, the Indenture does not impose any limitation on the incurrence by such subsidiaries of liabilities that are not considered Indebtedness under the Indenture. See “—Certain Covenants—Limitation on Indebtedness.”

Change of Control

Upon the occurrence of any of the following events (each a “Change of Control”), each Holder shall have the right to require that the Company repurchase such Holder’s Notes at a purchase price in cash equal to 101% of the principal amount thereof on the date of purchase plus accrued and unpaid interest, if any, to the date of purchase (subject to the right of holders of record on the relevant record date to receive interest due on the relevant interest payment date):

but, notwithstanding the foregoing, Permitted Grizzly Dispositions shall not constitute or give rise to a Change of Control.

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Within 30 days following any Change of Control, we will send a notice to each Holder with a copy to the Trustee (the “Change of Control Offer”) stating:

We will not be required to make a Change of Control Offer following a Change of Control if a third party makes the Change of Control Offer in the manner, at the times and otherwise in compliance with the requirements set forth in the Indenture applicable to a Change of Control Offer made by us and purchases all Notes validly tendered and not withdrawn under such Change of Control Offer or if notice of redemption has been given pursuant to “—Optional Redemption” above.

Notwithstanding anything to the contrary herein, a Change of Control Offer may be made in advance of a Change of Control, conditional upon such Change of Control, if a definitive agreement is in place for the Change of Control at the time of making of the Change of Control Offer.

We will comply, to the extent applicable, with the requirements of Section 14(e) of the Exchange Act and any other securities laws or regulations in connection with the repurchase of Notes as a result of a Change of Control. To the extent that the provisions of any securities laws or regulations conflict with the provisions of the covenant described hereunder, we will comply with the applicable securities laws and regulations and shall be deemed not to have breached our obligations under the covenant described hereunder by virtue of our compliance with such securities laws or regulations.

The Change of Control purchase feature of the Notes may in certain circumstances make more difficult or discourage a sale or takeover of the Company and, thus, the removal of incumbent management. The Change of Control purchase feature is a result of negotiations between the Company and the initial purchasers. We have no present intention to engage in a transaction involving a Change of Control, although it is possible that we could decide to do so in the future. Subject to the limitations discussed below, we could, in the future, enter into certain transactions, including acquisitions, refinancings or other recapitalizations, that would not constitute a Change of Control under the Indenture, but that could increase the amount of indebtedness outstanding at such time or otherwise affect our capital structure or credit ratings. Restrictions on our ability to Incur additional Indebtedness are contained in the covenants described under “—Certain Covenants—Limitation on Indebtedness” and “—Limitation on Liens.” Such restrictions are subject to numerous exceptions and can be waived with the consent of the holders of a majority in principal amount of the Notes then outstanding. Accordingly, the covenants set forth in the Indenture may not afford holders of the Notes protection in the event of a highly leveraged transaction.

In the event a Change of Control occurs at a time when we are contractually prohibited from purchasing Notes, we may seek the consent of our lenders to the purchase of Notes or may attempt to refinance the borrowings that contain such prohibition. If we do not obtain such a consent or repay such borrowings, we will remain prohibited from purchasing Notes. In such case, our failure to offer to purchase Notes would constitute a Default under the Indenture, which would, in turn, constitute a default under the Existing Credit Agreement.

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Our Existing Credit Agreement does, and any future indebtedness that we may incur may, contain prohibitions on the occurrence of certain events that would constitute a Change of Control or require the repayment or repurchase of such indebtedness upon a Change of Control. Moreover, the exercise by the Holders of their right to require us to repurchase their Notes could cause a default under such other indebtedness, even if the Change of Control itself does not, due to the financial effect of such repurchase on us. Finally, our ability to pay cash to the holders of Notes following the occurrence of a Change of Control may be limited by our then existing financial resources. There can be no assurance that sufficient funds will be available when necessary to make any required repurchases.

The definition of “Change of Control” includes the phrase “all or substantially all the assets.” Although there is a limited body of case law interpreting the phrase “substantially all,” there is no precise established definition of the phrase under applicable law. Accordingly, in certain circumstances there may be a degree of uncertainty as to whether a particular transaction would involve a disposition of “all or substantially all” of the assets of the Company. As a result, it may be unclear as to whether a Change of Control has occurred and whether a holder of Notes may require the Company to make an offer to repurchase the Notes as described above.

In the event that Holders of not less than 90% in aggregate principal amount of the outstanding Notes accept a Change of Control Offer and the Company (or any third party making such Change of Control Offer in lieu of the Company as described above) purchases all of the Notes tendered by such Holders, the Company shall have the right, upon not less than 30 nor more than 60 days prior notice, given not more than 30 days following the purchase pursuant to the Change of Control Offer described above, to redeem all of the Notes that remain outstanding following such purchase at a redemption price equal to the Change of Control Purchase Price, including interest to the date of redemption (subject to the right of Holders of record on the relevant record date to receive interest on the relevant interest payment date).

The provisions under the Indenture relative to our obligation to make an offer to repurchase the Notes as a result of a Change of Control may be waived or modified with the written consent of the holders of a majority in principal amount of the Notes.

Certain Covenants

Changes in Covenants when the Notes are Rated Investment Grade

On the day (such date, the “Termination Date”) after the Issue Date on which:

the covenants listed below will be permanently terminated and the Company and its Subsidiaries, as applicable, will not be subject to the provisions of the Indenture summarized under the headings below:

“—Limitations on Indebtedness,”

“—Limitations on Restricted Payments,”

“—Limitations on Restrictions on Distributions from Restricted Subsidiaries,”

“—Limitations on Sales of Assets and Subsidiary Stock,”

“—Limitations on Affiliate Transactions,”

“—Limitations on Line of Business,” and

clause (3) of the paragraph (a) of “—Merger and Consolidation.”

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On the Termination Date, the Company will provide an Officers’ Certificate to the Trustee regarding such occurrence. The Trustee shall have no obligation to independently determine or verify if the Termination Date has occurred or notify the Holders of the Termination Date. The Trustee may provide a copy of such Officers’ Certificate to any Holder of the Notes upon written request. There can be no assurance that the Notes will ever achieve an Investment Grade Rating.

Limitation on Indebtedness

(a) The Company will not, and will not permit any Restricted Subsidiary to, Incur, directly or indirectly, any Indebtedness; provided, however, that the Company and the Subsidiary Guarantors will be entitled to Incur Indebtedness if, on the date of such Incurrence and after giving effect thereto on a pro forma basis, the Consolidated Coverage Ratio exceeds 2.00 to 1.00.

(b) Notwithstanding the foregoing paragraph (a), the Company and the Restricted Subsidiaries will be entitled to Incur any or all of the following Indebtedness:

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(c) Notwithstanding the foregoing, neither the Company nor any Subsidiary Guarantor will Incur any Indebtedness pursuant to the foregoing paragraph (b) if the proceeds thereof are used, directly or indirectly, to Refinance any Subordinated Obligations of the Company or any Subsidiary Guarantor unless such Indebtedness shall be subordinated to the Notes or the applicable Subsidiary Guaranty to at least the same extent as such Subordinated Obligations.

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(d) For purposes of determining compliance with this covenant, in the event that an item of Indebtedness (or any portion thereof) meets the criteria of more than one of the types of Indebtedness described above, the Company, in its sole discretion, will classify such item of Indebtedness (or any portion thereof) at the time of Incurrence and will only be required to include the amount and type of such Indebtedness in one of the above clauses and the Company will be entitled to divide and classify and reclassify from time to time an item of Indebtedness in more than one of the types of Indebtedness described above.

(e) For purposes of determining compliance with any U.S. dollar-denominated restriction on the Incurrence of Indebtedness, the making of Investments or any other covenant, limitation or ratio in the Indenture, the U.S. dollar-equivalent of the principal amount of Indebtedness, Investment or other amount denominated in a foreign currency shall be utilized, calculated based on the relevant currency exchange rate in effect on the date such Indebtedness was Incurred, such Investment was made, or such other amount was expended or incurred. Notwithstanding any other provision of the Indenture, the maximum amount of Indebtedness that the Company or any Restricted Subsidiary may Incur pursuant to the Indenture shall be deemed not to be exceeded and all other covenants, limitations and ratios in the Indenture be deemed not to be breached or exceeded, solely as a result of fluctuations in exchange rates or currency values.

Limitation on Restricted Payments

(a) The Company will not, and will not permit any Restricted Subsidiary to, directly or indirectly, make a Restricted Payment if at the time the Company or such Restricted Subsidiary makes such Restricted Payment:

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(b) The preceding provisions will not prohibit:

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(c) If any Person in which an Investment is made, which Investment constitutes a Restricted Payment or a Permitted Investment under clause (22) of such definition when made, thereafter becomes a Restricted Subsidiary, all such Investments previously made in such Person shall no longer be counted as Restricted Payments or Permitted Investments under such clause for purposes of calculating the aggregate amount of Restricted Payments made or Permitted Investments made pursuant to such clause.

Limitation on Restrictions on Distributions from Restricted Subsidiaries

The Company will not, and will not permit any Restricted Subsidiary to, create or otherwise cause or permit to exist or become effective any consensual encumbrance or restriction on the ability of any Restricted Subsidiary to (a) pay dividends or make any other distributions on its Capital Stock to the Company or a Restricted Subsidiary or pay any Indebtedness owed to the Company, (b) make any loans or advances to the Company or (c) transfer any of its property or assets to the Company, except:

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In each case set forth above, notwithstanding any stated limitation on the assets or property that may be subject to such encumbrance or restriction, an encumbrance or restriction on a specified asset or property or group or type of assets or property may also apply to all improvements, repairs, additions, attachments and accessions thereto, assets and property affixed or appurtenant thereto, construction thereon, parts, replacements and substitutions therefor, and all products and proceeds thereof, including dividends, distributions, interest and increases in respect thereof.

Limitation on Sales of Assets and Subsidiary Stock

(a) The Company will not, and will not permit any Restricted Subsidiary or, so long as it is an Unrestricted Subsidiary, Grizzly Holdings, to, directly or indirectly, consummate any Asset Disposition unless:

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provided, however, that in connection with any prepayment, repayment, purchase, repurchase, redemption, defeasance or other acquisition or retirement for value of Indebtedness pursuant to clause (A) or (C) above (other than Indebtedness outstanding pursuant to clause (b)(1) of the covenant described under “—Limitation on Indebtedness”), the Company or such Subsidiary shall permanently retire such Indebtedness and shall cause the related loan commitment (if any) to be permanently reduced in an amount equal to the principal amount so prepaid, repaid, purchased or otherwise retired.

Notwithstanding the foregoing provisions of this covenant, the Company and such Subsidiaries will not be required to apply any amount of Net Available Cash in accordance with this covenant except to the extent that the aggregate amount of Net Available Cash from all Asset Dispositions which is not applied in accordance with this covenant exceeds $25.0 million. Pending application of any amount of Net Available Cash pursuant to this covenant, such amount may be invested in any manner not prohibited by the Indenture, including to temporarily reduce revolving credit indebtedness.

For the purposes of paragraph (a)(2) of this covenant, the following are deemed to be cash or cash equivalents:

The requirement of clause (a)(3)(B) above shall be deemed to be satisfied if an agreement (including a lease, whether a capital lease or an operating lease) committing to make the acquisitions or expenditures referred to therein is entered into by the Company or such Subsidiary (or any Restricted Subsidiary) within the time period specified in such clause and the amount of such Net Available Cash is subsequently applied in accordance with such agreement within six months following such agreement.

Notwithstanding the foregoing, in the event that a Subsidiary that is not a Wholly Owned Subsidiary effects an Asset Disposition and dividends or distributes to all of its stockholders (including the Company or a Restricted Subsidiary) on a pro rata basis any Net Available Cash from such Asset Disposition, the Company or such Restricted Subsidiary need only apply an amount equal to its pro rata share of such Net Available Cash in accordance with clause (a) (3) above.

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(b) In the event of an Asset Disposition that requires the purchase of Notes (and other Senior Indebtedness of the Company or a Subsidiary Guarantor) pursuant to clause (a)(3)(C) above, the Company will make such offer to purchase Notes on or before the 366th day (or in the case of an Asset Disposition by, or of the Capital Stock of, Grizzly Holdings, the 731st day) after the later of the date of such Asset Disposition or the receipt of such Net Available Cash and will purchase Notes tendered pursuant to an offer (an “Asset Disposition Offer”) by the Company for the Notes (and such other Senior Indebtedness) at a purchase price of 100% of their principal amount (or, in the event such other Senior Indebtedness was issued with significant original issue discount, 100% of the accreted value thereof) without premium, plus accrued but unpaid interest, subject to the rights of Holders of record on the relevant record date to receive interest due on the relevant interest payment date (or, in respect of such other Senior Indebtedness, such lesser price, if any, as may be provided for by the terms of such Senior Indebtedness) in accordance with the procedures (including prorating in the event of oversubscription) set forth in the Indenture. If the aggregate purchase price of the securities tendered exceeds the Net Available Cash allotted to their purchase, the Company will select the securities to be purchased on a pro rata basis but in round denominations, which in the case of the Notes will be denominations of $2,000 principal amount or any greater multiple of $1,000. The Company shall not be required to make such an offer to purchase Notes (and other Senior Indebtedness) pursuant to this covenant if the amount of Net Available Cash available therefor is less than $25.0 million (which lesser amount shall be carried forward for purposes of determining whether such an offer is required with respect to the Net Available Cash from any subsequent Asset Disposition). Upon completion of such an offer to purchase, Net Available Cash will be deemed to be reduced by the aggregate amount of such offer.

(c) The Company will comply, to the extent applicable, with the requirements of Section 14(e) of the Exchange Act and any other securities laws or regulations in connection with the repurchase of Notes pursuant to this covenant. To the extent that the provisions of any securities laws or regulations conflict with provisions of this covenant, the Company will comply with the applicable securities laws and regulations and will be deemed not to have breached its obligations under this covenant by virtue of its compliance with such securities laws or regulations.

Notwithstanding anything to the contrary in this covenant, all references herein to “Net Available Cash” shall be deemed to mean cash in an amount equal to the amount of Net Available Cash but not necessarily the actual cash received from the relevant Asset Disposition. The Company and its Subsidiaries shall have no obligation to segregate, trace or otherwise identify Net Available Cash (other than the amount thereof), it being agreed that cash is fungible and that the Company’s obligations under this covenant may be satisfied by the application of funds from other sources.

The provisions under the Indenture relative to the obligation to make an offer to repurchase the Notes as a result of an Asset Disposition may be waived or modified with the written consent of the holders of a majority in principal amount of the Notes.

Limitation on Affiliate Transactions

(a) The Company will not, and will not permit any Restricted Subsidiary to, enter into any transaction (including the purchase, sale, lease or exchange of any property, employee compensation arrangements or the rendering of any service) with (which term, for purposes of this covenant, shall include “for the benefit of” where appropriate in the context) any Affiliate of the Company involving aggregate consideration in excess of $1.0 million (an “Affiliate Transaction”) unless:

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(b) The provisions of the preceding paragraph (a) will not prohibit:

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Limitation on Line of Business

The Company will not, and will not permit any Restricted Subsidiary to, engage in any business other than a Related Business, except to the extent that such business would not be material to the Company and its Restricted Subsidiaries, taken as a whole.

Limitation on Liens

The Company will not, and will not permit any Subsidiary Guarantor to, directly or indirectly, Incur or permit to exist any Lien (the “Initial Lien”) of any nature whatsoever on any of its properties (including Capital Stock of a Restricted Subsidiary), whether owned at the Issue Date or thereafter acquired, securing any Indebtedness, other than Permitted Liens, without effectively providing that the Notes or such Subsidiary Guarantor’s Subsidiary Guaranty, as applicable, shall be secured equally and ratably with (or, at the Company’s election, prior to) the Indebtedness so secured for so long as such Indebtedness is so secured.

Any such Lien thereby created securing the Notes or any Subsidiary Guaranty pursuant to the preceding sentence will be automatically and unconditionally released and discharged upon (i) the release and discharge of each Initial Lien to which it relates, (ii) in the case of such Lien securing any such Subsidiary Guaranty, the termination and discharge of such Subsidiary Guaranty in accordance with the Indenture or (iii) any sale, exchange or transfer to any Person not an Affiliate of the Company of the property or assets secured by such Initial Lien.

Merger and Consolidation

(a) The Company will not consolidate with or merge with or into, or convey, transfer or lease, in one transaction or a series of related transactions, directly or indirectly, all or substantially all its assets to, any Person, unless:

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provided, however, that clause (3) will not be applicable to (A) the Company or a Restricted Subsidiary consolidating with, merging into, conveying, transferring or leasing all or part of its assets to the Company or a Subsidiary Guarantor or (B) the Company merging with an Affiliate of the Company solely for the purpose and with the sole effect of reincorporating the Company in another jurisdiction.

For purposes of this covenant, the sale, lease, conveyance, assignment, transfer or other disposition of all or substantially all of the properties and assets of one or more Restricted Subsidiaries of the Company, which properties and assets, if held by the Company instead of such Restricted Subsidiaries, would constitute all or substantially all of the properties and assets of the Company on a consolidated basis, shall be deemed to be the transfer of all or substantially all of the assets of the Company; provided, however, that this covenant will not be applicable to Permitted Grizzly Dispositions.

The Successor Company (if not the Company) will be the successor to the Company and shall succeed to, and be substituted for, and may exercise every right and power of, the Company under the Indenture, and the predecessor Company, except in the case of a lease, shall be released from the obligation to pay the principal of and interest on the Notes.

For all purposes of the Indenture, Subsidiaries of any Successor Company will, upon any transaction subject to this covenant, become Restricted Subsidiaries or Unrestricted Subsidiaries as provided pursuant to the Indenture, and all Indebtedness and Liens of the Successor Company and its Subsidiaries that were not Indebtedness or Liens on property or assets, as the case may be, of the Company and its Subsidiaries immediately prior to such transaction shall be deemed to have been Incurred upon such transaction.

(b) The Company will not permit any Subsidiary Guarantor to consolidate with or merge with or into, or convey, transfer or lease, in one transaction or a series of related transactions, all or substantially all of its assets to any Person unless:

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Future Subsidiary Guarantors

The Company will cause each Restricted Subsidiary that enters into a Guarantee of any Indebtedness of the Company or any other Restricted Subsidiary (other than a Foreign Subsidiary that Guarantees only Indebtedness Incurred by a Foreign Subsidiary) to, in each case, within 30 days thereafter, execute and deliver to the Trustee a Guaranty Agreement pursuant to which such Restricted Subsidiary will Guarantee payment of the Notes on the same terms and conditions as those set forth in the Indenture.

SEC Reports

Whether or not the Company is subject to the reporting requirements of Section 13 or 15(d) of the Exchange Act, the Company will file with or furnish to the SEC, as applicable, subject to the next sentence, and provide the Trustee and Holders with, such annual and other reports as are specified in Sections 13 and 15(d) of the Exchange Act and applicable to a U.S. corporation subject to such Sections (but without exhibits in the case of reports provided to Holders), such reports to be so filed and provided at the times specified for the filings of such reports under such Sections (after giving effect to all applicable extensions and cure periods) and containing all the information, audit reports and exhibits required for such reports. If, at any time, the Company is not subject to the periodic reporting requirements of the Exchange Act for any reason, the Company will nevertheless continue filing the reports specified in the preceding sentence with the SEC within such time periods unless the SEC will not accept such a filing. The Company agrees that it will not take any action for the purpose of causing the SEC not to accept such filings. If, notwithstanding the foregoing, the SEC will not accept such filings for any reason, the Company will post the reports specified in the preceding sentence on its website within the time periods (after giving effect to all applicable extensions and cure periods) that would apply if the Company were required to file those reports with the SEC.

Notwithstanding anything to the contrary contained in the immediately preceding paragraph, if the Company is not required to file reports with the SEC pursuant to Section 13 or 15(d) of the Exchange Act, (i.e., is a “voluntary filer”), the reports described in the preceding paragraph shall not be required to contain certain disclosures relating to the Company’s controls and procedures, corporate governance, code of ethics, director independence, market for the Company’s equity securities and executive compensation.

At any time that any of the Company’s Subsidiaries are Unrestricted Subsidiaries, then the quarterly and annual financial information required by the preceding paragraph will include a reasonably detailed presentation, either on the face of the financial statements or in the footnotes thereto, and in “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” of the financial condition and results of operations of the Company and its Restricted Subsidiaries separate from the financial condition and results of operations of the Unrestricted Subsidiaries of the Company.

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In addition, the Company will furnish to the Holders of the Notes and to prospective investors, upon the requests of such Holders, any information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act so long as the Notes are not freely transferable under the Securities Act.

The Company shall be deemed to have furnished such reports to the Trustee and the Holders of the Notes if it has filed such reports with the SEC using the EDGAR (or any successor) filing system and such reports are publicly available through such filing system.

In the event that any direct or indirect parent company of the Company becomes a guarantor of the Notes, the Company may satisfy its obligations under this covenant by furnishing financial information relating to such parent; provided, however, that (a) such financial statements are accompanied by consolidating financial information for such parent, the Company, the Subsidiary Guarantors and the Subsidiaries of the Company that are not Subsidiary Guarantors in the manner prescribed by the SEC and (b) such parent is not engaged in any business in any material respect other than incidental to its ownership, directly or indirectly, of the Capital Stock of the Company.

So long as any Notes are outstanding, the Company will also:

This covenant will be deemed not to impose any duty on the Company under the Sarbanes-Oxley Act of 2002 and the related SEC rules that would not otherwise be applicable.

Defaults

Each of the following is an Event of Default:

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However, a default under clauses (4) and (5) will not constitute an Event of Default until the Trustee or the holders of 25% in principal amount of the outstanding Notes notify the Company of the default and the Company does not cure such default within the time specified after receipt of such notice.

If an Event of Default occurs and is continuing, the Trustee or the holders of at least 25% in principal amount of the outstanding Notes may declare the principal of and accrued but unpaid interest on all the Notes to be due and payable. Upon such a declaration, such principal and interest shall be due and payable immediately. If an Event of Default relating to certain events of bankruptcy, insolvency or reorganization of the Company occurs and is continuing, the principal of and interest on all the Notes will ipso facto become and be immediately due and payable without any declaration or other act on the part of the Trustee or any holders of the Notes. Under certain circumstances, the holders of a majority in principal amount of the outstanding Notes may rescind any such acceleration with respect to the Notes and its consequences.

Subject to the provisions of the Indenture relating to the duties of the Trustee, in case an Event of Default occurs and is continuing, the Trustee will be under no obligation to exercise any of the rights or powers under the Indenture at the request or direction of any of the holders of the Notes unless such holders have offered to the Trustee reasonable indemnity or security against any loss, liability or expense. Except to enforce the right to receive payment of principal, premium (if any) or interest when due, no holder of a Note may pursue any remedy with respect to the Indenture or the Notes unless:

Subject to certain restrictions, the holders of a majority in principal amount of the outstanding Notes are given the right to direct the time, method and place of conducting any proceeding for any remedy available to the Trustee or of exercising any trust or power conferred on the Trustee. The Trustee, however, may refuse to follow any direction that conflicts with law or the Indenture or that the Trustee determines is unduly prejudicial to the rights of any other holder of a Note or that would involve the Trustee in personal liability.

If a Default occurs, is continuing and is known to the Trustee, the Trustee must send to each holder of Notes notice of the Default within 90 days after it occurs. Except in the case of a Default in the payment of principal of

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or interest on any Note, the Trustee may withhold notice if and so long as a committee of its Trust Officers in good faith determines that withholding notice is not opposed to the interest of the holders of the Notes. In addition, we are required to deliver to the Trustee, within 120 days after the end of each fiscal year, a certificate indicating whether the signers thereof know of any Default that occurred during the previous year. We are required to deliver to the Trustee, within 30 days after the occurrence thereof, written notice of any event which would constitute certain Defaults, their status and what action we are taking or propose to take in respect thereof.

Amendments and Waivers

Subject to certain exceptions, the Indenture, the Notes and the Subsidiary Guaranties may be amended with the consent of the holders of a majority in principal amount of the Notes then outstanding (including consents obtained in connection with a tender offer or exchange for the Notes) and any past default or compliance with any provisions may also be waived with the consent of the holders of a majority in principal amount of the Notes then outstanding. However, without the consent of each holder of an outstanding Note affected thereby, an amendment or waiver may not, among other things:

Notwithstanding the preceding, the covenants described under the captions “—Change of Control” and “—Certain Covenants—Limitation on Sales of Assets and Subsidiary Stock” may be amended as described in the last paragraph of each such description.

Notwithstanding the preceding, without the consent of any holder of the Notes, the Company, the Subsidiary Guarantors and the Trustee may amend the Indenture, the Notes and the Subsidiary Guaranties:

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The consent of the holders of the Notes is not necessary under the Indenture to approve the particular form of any proposed amendment. It is sufficient if such consent approves the substance of the proposed amendment.

After an amendment under the Indenture becomes effective, we are required to send to holders of the Notes a notice briefly describing such amendment. However, the failure to give such notice to all holders of the Notes, or any defect therein, will not impair or affect the validity of the amendment.

Neither the Company nor any Affiliate of the Company may, directly or indirectly, pay or cause to be paid any consideration, whether by way of interest, fee or otherwise, to any Holder for or as an inducement to any consent, waiver or amendment of any of the terms or provisions of the Indenture or the Notes unless such consideration is offered to all Holders and is paid to all Holders that so consent, waive or agree to amend in the time frame set forth in solicitation documents relating to such consent, waiver or agreement.

Transfer

The Notes have been or will be issued in registered form and will be transferable only upon the surrender of the Notes being transferred for registration of transfer. We may require payment of a sum sufficient to cover any tax, assessment or other governmental charge payable in connection with certain transfers and exchanges.

Satisfaction and Discharge

When (1) we deliver to the Trustee all outstanding Notes for cancelation or (2) all outstanding Notes have become due and payable, whether at maturity or on a redemption date as a result of the sending of notice of redemption, and, in the case of clause (2), we irrevocably deposit with the Trustee funds sufficient to pay at maturity or upon redemption all outstanding Notes, including interest thereon to maturity or such redemption date, and if in either case we pay all other sums payable under the Indenture by us, then the Indenture shall, subject to certain exceptions, cease to be of further effect.

Defeasance

At any time, we may terminate all our obligations under the Notes and the Indenture (“legal defeasance”), except for certain obligations, including those respecting the defeasance trust and obligations to register the transfer or exchange of the Notes, to replace mutilated, destroyed, lost or stolen Notes and to maintain a registrar and paying agent in respect of the Notes.

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In addition, at any time we may terminate our obligations under “—Change of Control” and under the covenants described under “—Certain Covenants” (other than the covenant described under “—Certain Covenants—Merger and Consolidation”), the operation of the cross acceleration provision, the bankruptcy provisions with respect to Subsidiaries, the judgment default provision and the Guarantor failure provision described under “—Defaults” above and the limitation contained in clause (3) of the first paragraph under “—Certain Covenants—Merger and Consolidation” above (“covenant defeasance”).

We may exercise our legal defeasance option notwithstanding our prior exercise of our covenant defeasance option. If we exercise our legal defeasance option, payment of the Notes may not be accelerated because of an Event of Default with respect thereto. If we exercise our covenant defeasance option, payment of the Notes may not be accelerated because of an Event of Default specified in clause (4), (6), (7) (with respect only to Subsidiaries), (8) or (9) under “—Defaults” above or because of the failure of the Company to comply with clause (3) of the first paragraph under “—Certain Covenants—Merger and Consolidation” above. If we exercise our legal defeasance option or our covenant defeasance option, each Subsidiary Guarantor will be released from all of its obligations with respect to its Subsidiary Guaranty.

In order to exercise either of our defeasance options, we must irrevocably deposit in trust (the “defeasance trust”) with the Trustee (x) cash in United States dollars or (y) cash in United States dollars, U.S. Government Obligations, or a combination thereof, in such amounts as, in the aggregate, will be sufficient (in the case of clause (y), (A) in the opinion of a nationally recognized firm of independent public accountants or a nationally recognized investment banking firm, or (B) if no such opinion in the immediately preceding clause (A) can be reasonably obtained, in the opinion of the chief financial officer of the Company) for the payment of principal and interest on the Notes to redemption or maturity, as the case may be, and must comply with certain other conditions, including delivery to the Trustee of an Opinion of Counsel to the effect that holders of the Notes will not recognize income, gain or loss for Federal income tax purposes as a result of such deposit and defeasance and will be subject to Federal income tax on the same amounts and in the same manner and at the same times as would have been the case if such deposit and defeasance had not occurred (and, in the case of legal defeasance only, such Opinion of Counsel must be based on a ruling of the Internal Revenue Service or other change in applicable Federal income tax law).

Concerning the Trustee

Wells Fargo Bank, N.A. is the Trustee under the Indenture. We have appointed Wells Fargo Bank, N.A. as Registrar and Paying Agent with regard to the Notes.

The Indenture contains certain limitations on the rights of the Trustee, should it become a creditor of the Company, to obtain payment of claims in certain cases, or to realize on certain property received in respect of any such claim as security or otherwise. The Trustee will be permitted to engage in other transactions; provided, however, if it acquires any conflicting interest it must either eliminate such conflict within 90 days, apply to the SEC for permission to continue or resign.

The Holders of a majority in principal amount of the outstanding Notes will have the right to direct the time, method and place of conducting any proceeding for exercising any remedy available to the Trustee, subject to certain exceptions. If an Event of Default occurs (and is not cured), the Trustee will be required, in the exercise of its power, to use the degree of care of a prudent man in the conduct of his own affairs. Subject to such provisions, the Trustee will be under no obligation to exercise any of its rights or powers under the Indenture at the request of any Holder of Notes unless such Holder shall have offered to the Trustee security and indemnity satisfactory to it against any loss, liability or expense and then only to the extent required by the terms of the Indenture.

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No Personal Liability of Directors, Officers, Employees and Stockholders

No director, officer, employee, incorporator or stockholder of the Company or any Subsidiary Guarantor (other than a stockholder that is the Company or another Subsidiary Guarantor) will have any liability for any obligations of the Company or any Subsidiary Guarantor under the Notes, any Subsidiary Guaranty or the Indenture or for any claim based on, in respect of, or by reason of such obligations or their creation. Each Holder of the Notes by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. Such waiver and release may not be effective to waive liabilities under the U.S. federal securities laws, and it is the view of the SEC that such a waiver is against public policy.

Governing Law

The Indenture and the 2015 Notes are, and the Exchange Notes will be, governed by, and construed in accordance with, the laws of the State of New York.

Certain Definitions

“Additional Assets” means:

provided, however, that any such Restricted Subsidiary described in clause (2) or (3) above is primarily engaged in a Related Business.

“Adjusted Consolidated Net Tangible Assets” means (without duplication), as of the date of determination:

and decreased by, as of the date of determination, the discounted future net revenue attributable to:

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provided, however, that, in the case of each of the determinations made pursuant to clauses (i) through (iv), such increases and decreases shall be estimated by the Company’s petroleum engineers or any independent petroleum engineer engaged by the Company for such purpose, in accordance with customary reserve engineering practices;

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Whether the Company uses the successful efforts method of accounting or the full cost (or similar method) method of accounting, “Adjusted Consolidated Net Tangible Assets” will be calculated as if the Company were using the full cost method of accounting.

“Affiliate” of any specified Person means any other Person, directly or indirectly, controlling or controlled by or under direct or indirect common control with such specified Person. For the purposes of this definition, “control” when used with respect to any Person means the power to direct the management and policies of such Person, directly or indirectly, whether through the ownership of voting securities, by contract or otherwise; and the terms “controlling” and “controlled” have meanings correlative to the foregoing. For purposes of the covenants described under “—Certain Covenants—Limitation on Restricted Payments,” “—Certain Covenants—Limitation on Affiliate Transactions” and “—Certain Covenants—Limitation on Sales of Assets and Subsidiary Stock” only, “Affiliate” shall also mean any beneficial owner of Capital Stock representing 10% or more of the total voting power of the Voting Stock (on a fully diluted basis) of the Company or of rights or warrants to purchase such Capital Stock (whether or not currently exercisable). No Person shall be deemed an Affiliate of an oil and gas royalty trust solely by virtue of ownership of units of beneficial interest in such trust.

“ASC” means the Financial Standards Accounting Board’s Accounting Standards Codification.

“Asset Disposition” means any sale, lease, transfer or other disposition or issuance (or series of related sales, leases, transfers or other dispositions or issuances) by the Company or any Restricted Subsidiary, including by means of a merger, consolidation or similar transaction (each, a “disposition”), of:

Notwithstanding the foregoing, the following shall be deemed not to be Asset Dispositions for purposes of the covenant described under “—Certain Covenants—Limitation on Sales of Assets and Subsidiary Stock”:

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For the avoidance of doubt: (i) any disposition of Hydrocarbons and Minerals; (ii) any abandonment, relinquishment, farm-in, farm-out, lease, sub-lease, pooling, unitization, deemed transfer of working interests under any joint operating agreement or other similar or other disposition of developed or undeveloped or both developed and underdeveloped Hydrocarbon and Mineral Properties; (iii) the provision of services, equipment and other assets for the operation and development of the Company’s and its Restricted Subsidiaries’ oil and natural gas wells (notwithstanding that any such transaction may be recorded as an asset sale in accordance with full cost accounting guidelines); (iv) any assignment of a working, overriding royalty or net profits interest to an employee or consultant of the Company or any of its Restricted Subsidiaries in connection with the generation of prospects or the exploration or development of oil and natural gas projects; (v) the licensing or abandonment of intellectual property in the ordinary course of business; (vi) the granting of leases or subleases that do not interfere in any material respect with the business of the Company and its Restricted Subsidiaries; (vii) the disposition of obsolete or worn out equipment or equipment that is no longer used in the conduct of the business of the Company and its Restricted Subsidiaries and that is disposed of in each case in the ordinary course of business; (viii) the liquidation of any assets received in settlement of claims owed to the Company or any Restricted Subsidiary; and (ix) the disposition of, or voluntary or involuntary termination of, a Hedging Obligation, in each such case in the ordinary course of business of the Company or its Subsidiaries or as otherwise customary in the Oil and Gas Business, will not constitute an Asset Disposition.

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“Average Life” means, as of the date of determination, with respect to any Indebtedness, the quotient obtained by dividing:

“Board of Directors” means the board of directors of the Company or any committee thereof duly authorized to act on behalf of such board.

“Business Day” means each day which is not a Legal Holiday.

“Capital Lease Obligation” means an obligation that is required to be classified and accounted for as a capital lease for financial reporting purposes in accordance with GAAP, and the amount of Indebtedness represented by such obligation shall be the capitalized amount of such obligation determined in accordance with GAAP; and the Stated Maturity thereof shall be the date of the last payment of rent or any other amount due under such lease prior to the first date upon which such lease may be terminated by the lessee without payment of a penalty. For purposes of the covenant described under “—Certain Covenants—Limitation on Liens,” a Capital Lease Obligation will be deemed to be Indebtedness secured by a Lien on the property being leased.

“Capital Stock” of any Person means any and all shares, interests (including partnership interests), rights to purchase, warrants, options, participations or other equivalents of or interests in (however designated) equity of such Person, including any Preferred Stock, but excluding any debt securities convertible into such equity.

“Code” means the Internal Revenue Code of 1986, as amended.

“Consolidated Coverage Ratio” as of any date of determination means the ratio of (x) the aggregate amount of EBITDA for the period of the most recent four consecutive fiscal quarters ending at least 45 days prior to the date of such determination to (y) Consolidated Interest Expense for such four fiscal quarters; provided, however, that:

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For purposes of this definition, whenever pro forma effect is to be given to an event, the pro forma calculations shall be determined in good faith by a responsible financial or accounting Officer of the Company.

If any Indebtedness bears a floating rate of interest and is being given pro forma effect, the interest on such Indebtedness shall be calculated as if the rate in effect on the date of determination had been the applicable rate for the entire period (taking into account any Interest Rate Agreement applicable to such Indebtedness, but if the remaining term of such Interest Rate Agreement is less than 12 months, then such Interest Rate Agreement shall only be taken into account for that portion of the period equal to the remaining term thereof).

The Consolidated Interest Expense attributable to interest on any Indebtedness under a revolving credit facility the outstanding principal balance of which is required to be computed on a pro forma basis in accordance with the foregoing shall be computed based upon the average daily balance of such Indebtedness during the applicable period, provided, however, that such average daily balance shall be reduced by the amount of any repayment of Indebtedness under such revolving credit facility during the applicable period, to the extent such repayment permanently reduced the commitments or amounts available to be borrowed under such facility.

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“Consolidated Interest Expense” means, for any period, the total interest expense of the Company and its consolidated Restricted Subsidiaries, plus, to the extent not included in such total interest expense, and to the extent incurred by the Company or its Restricted Subsidiaries, without duplication:

minus, to the extent included above, write-off of deferred financing costs and interest attributable to Dollar-Denominated Production Payments.

“Consolidated Net Income” means, for any period, the net income of the Company and its consolidated Subsidiaries; provided, however, that there shall not be included in such Consolidated Net Income:

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in each case, for such period. Notwithstanding the foregoing, for the purposes of the covenant described under “—Certain Covenants—Limitation on Restricted Payments” only, there shall be excluded from Consolidated Net

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Income (1) any repurchases, repayments or redemptions of Investments, proceeds realized on the sale of Investments or return of capital to the Company or a Restricted Subsidiary to the extent such repurchases, repayments, redemptions, proceeds or returns increase the amount of Restricted Payments permitted under such covenant pursuant to clause (a)(3)(D) thereof and (2) any dividends or other distributions of assets received by the Company or a Restricted Subsidiary from Unrestricted Subsidiaries as dividends or other distributions by such Unrestricted Subsidiaries to the extent used to make Restricted Payments pursuant to clause (b)(12)(B) of such covenant.

“Credit Agreements” means one or more credit facilities, including the Existing Credit Agreement, other revolving credit loans, term loans, receivables financings, debt securities or other forms of debt, convertible debt or exchangeable debt financings or letters of credit and including any promissory notes, mortgages, guarantees, collateral documents, instruments and agreements executed in connection therewith, any amendments, supplements, modifications or Refinancings thereof and any such credit facilities that replace in any manner (whether upon or after termination or otherwise) or Refinance, restate, amend, supplement or modify any part of the loans, notes or commitments thereunder, including any such Refinanced, restated, amended, supplemented or modified facility that increases the amount permitted to be borrowed thereunder or alters the maturity thereof (provided that such increase in borrowings is permitted under “—Certain Covenants—Limitation on Indebtedness”) or adds the Company or any of the Subsidiary Guarantors as additional borrowers or guarantors thereunder and whether by the same or any other agent, lender or group of lenders or creditor or group of creditors.

“Currency Agreement” means any foreign exchange contract, currency swap agreement or other financial agreement or arrangement with respect to currency values.

“Default” means any event which is, or after notice or passage of time or both would be, an Event of Default.

“Disqualified Stock” means, with respect to any Person, any Capital Stock which by its terms (or by the terms of any security into which it is convertible or for which it is exchangeable at the option of the holder) or upon the happening of any event:

in each case on or prior to the date that is 91 days after the date of the Stated Maturity of the Notes; provided, however, that any Capital Stock that would not constitute Disqualified Stock but for provisions thereof giving holders thereof the right to require such Person to repurchase or redeem such Capital Stock upon the occurrence of an “asset sale” or “change of control” occurring prior to the date that is 91 days after the date of the Stated Maturity of the Notes shall not constitute Disqualified Stock if:

The amount of any Disqualified Stock that does not have a fixed redemption, repayment or repurchase price will be calculated in accordance with the terms of such Disqualified Stock as if such Disqualified Stock were

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redeemed, repaid or repurchased on any date on which the amount of such Disqualified Stock is to be determined pursuant to the Indenture; provided, however, that if such Disqualified Stock could not be required to be redeemed, repaid or repurchased at the time of such determination, the redemption, repayment or repurchase price will be the book value of such Disqualified Stock as reflected in the most recent financial statements of such Person.

“Dollar-Denominated Production Payments” means production payment obligations recorded as liabilities in accordance with GAAP, together with all undertakings and obligations in connection therewith.

“EBITDA” for any period means the sum of Consolidated Net Income, plus the following to the extent deducted in calculating such Consolidated Net Income:

in each case for such period and less, to the extent included in calculating such Consolidated Net Income and in excess of any costs or expenses attributable thereto and deducted in calculating such Consolidated Net Income, the sum of:

Notwithstanding the foregoing, the provision for taxes based on the income or profits of, and the depreciation and amortization and non-cash charges of, a Restricted Subsidiary shall be added to Consolidated Net Income to compute EBITDA only to the extent (and in the same proportion, including by reason of minority interests) that the net income or loss of such Restricted Subsidiary was included in calculating Consolidated Net Income and only if a corresponding amount would be permitted at the date of determination to be dividended to the Company by such Restricted Subsidiary without prior approval (that has not been obtained), pursuant to the terms of its charter and all agreements, instruments, judgments, decrees, orders, statutes, rules and governmental regulations applicable to such Restricted Subsidiary or its stockholders.

“Exchange Act” means the U.S. Securities Exchange Act of 1934, as amended.

“Exchange Notes” means the debt securities of the Company issued pursuant to the Indenture in exchange for, and in an aggregate principal amount not to exceed, the 2015 Notes, in compliance with the terms of the Registration Rights Agreement.

“Existing Credit Agreement” means the Amended and Restated Credit Agreement, dated as of December 27, 2013 and amended or modified as of April 23, 2014, November 26, 2014 and April 10, 2015, by and among the Company, as borrower, The Bank of Nova Scotia, as administrative agent, sole lead arranger and

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sole bookrunner, Amegy Bank National Association, as syndication agent, Key Bank National Association, as documentation agent, and the other lenders party thereto, together with the related documents thereto (including the revolving notes thereunder and any guarantees and security documents).

“Fair Market Value” means, with respect to any asset or property, the price which could be negotiated in an arm’s length, free market transaction, for cash, between a willing seller and a willing and able buyer, neither of whom is under undue pressure or compulsion to complete the transaction. Fair Market Value will be determined in good faith by an Officer of the Company who has responsibility for such transaction, whose determination will be conclusive, or, if in excess of $50.0 million, the Board of Directors, whose determination will be conclusive and evidenced by a resolution of such Board of Directors.

“Foreign Subsidiary” means any Restricted Subsidiary of the Company that is not organized under the laws of the United States of America or any State thereof or the District of Columbia.

“GAAP” means generally accepted accounting principles in the United States of America as in effect as of the Issue Date, including those set forth in:

“Grizzly Holdings” means Grizzly Holdings, Inc., a Delaware corporation, and its successors.

“Grizzly Oil Sands ULC” means Grizzly Oil Sands ULC, a Canadian unlimited liability company, and its successors.

“Grizzly Sponsor Contribution Agreement” means that certain Sponsor Contribution Agreement, dated as of October 5, 2012, among Grizzly Oil Sands ULC, Wexford Capital LP, Grizzly Oil Sands Inc., the Company and Grizzly Holdings, as amended from time to time to the extent such amendments are not materially adverse to the Company.

“Guarantee” means any obligation, contingent or otherwise, of any Person directly or indirectly guaranteeing any Indebtedness of any Person and any obligation, direct or indirect, contingent or otherwise, of such Person:

provided, however, that the term “Guarantee” shall not include endorsements for collection or deposit in the ordinary course of business. The term “Guarantee” used as a verb has a correlative meaning.

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“Guaranty Agreement” means a supplemental indenture, substantially in the form attached to the Indenture as an exhibit, pursuant to which a Subsidiary Guarantor guarantees the Company’s obligations with respect to the Notes on the terms provided for in the Indenture.

“Hedging Obligations” of any Person means the obligations of such Person pursuant to any Interest Rate Agreement, Currency Agreement or Oil and Natural Gas Hedging Contract.

“Holder” or “Noteholder” means the Person in whose name a Note is registered on the Registrar’s books.

“Hydrocarbon and Mineral Properties” means all properties, including any interest therein, which contain or are believed to contain Hydrocarbons and Minerals.

“Hydrocarbons and Minerals” means oil, natural gas, other hydrocarbons, sand, minerals and all constituents, elements or compounds thereof, and other products commonly created, recovered or produced in association therewith or refined or processed therefrom.

“Incur” means issue, assume, Guarantee, incur or otherwise become liable for; provided, however, that any Indebtedness of a Person existing at the time such Person becomes a Restricted Subsidiary (whether by merger, consolidation, acquisition or otherwise) shall be deemed to be Incurred by such Person at the time it becomes a Restricted Subsidiary. The term “Incurrence” when used as a noun shall have a correlative meaning. Solely for purposes of determining compliance with “—Certain Covenants—Limitation on Indebtedness”:

in each case will be deemed not to be Incurrences of Indebtedness.

“Indebtedness” means, with respect to any Person on any date of determination (without duplication):

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Notwithstanding the foregoing, in connection with the purchase by the Company or any Restricted Subsidiary of any business, the term “Indebtedness” will exclude (i) any post-closing payment to which the seller or any of its Affiliates may become entitled to the extent such payment is determined by a final closing balance sheet or such payment depends on the performance of such business after the closing (“Post-Closing Payments”); provided, however, that, at the time of closing, the amount of any such payment is not determinable and, to the extent such payment thereafter becomes fixed and determined, the amount is paid within 60 days thereafter, (ii) accrued expenses and royalties arising in the ordinary course of business, (iii) obligations to satisfy customer prepayment arrangements arising in the ordinary course of business, (iv) asset retirement obligations, (v) obligations in respect of environmental reclamation or site rehabilitation, (vi) workers compensation obligations (including superannuation, pensions and retiree medical care) that are not overdue by more than 90 days, (vii) obligations under farm-in and farm-out agreements or operating agreements, (viii) obligations arising out of the endorsement of negotiable instruments for collection in the ordinary course of business and (ix) customary indemnification obligations. In addition, except as expressly provided in clause (9) above, Production Payments and Reserve Sales shall not constitute “Indebtedness.”

The amount of Indebtedness of any Person at any date shall be the outstanding balance at such date of all unconditional obligations as described above; provided, however, that in the case of Indebtedness sold at a discount, the amount of such Indebtedness at any time will be the accreted value thereof at such time.

“Independent Qualified Party” means an investment banking firm, accounting firm or appraisal firm of national standing; provided, however, that such firm is not an Affiliate of the Company.

“Interest Rate Agreement” means any interest rate swap agreement, interest rate cap agreement or other financial agreement or arrangement with respect to exposure to interest rates.

“Investment” in any Person means any direct or indirect advance, loan (other than advances to customers in the ordinary course of business that are recorded as accounts receivable on the balance sheet of the lender) or other extensions of credit (including by way of Guarantee or similar arrangement) or capital contribution to (by means of any transfer of cash or other property to others or any payment for property or services for the account

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or use of others), or any purchase or acquisition for value of Capital Stock, Indebtedness or other similar instruments issued by, such Person. If the Company or any Restricted Subsidiary issues, sells or otherwise disposes of any Capital Stock of a Person that is a Restricted Subsidiary such that, after giving effect thereto, such Person is no longer a Restricted Subsidiary, any Investment by the Company or any Restricted Subsidiary in such Person remaining after giving effect thereto will be deemed to be a new Investment at such time. Except as otherwise provided for herein, the amount of an Investment shall be its Fair Market Value at the time the Investment is made and without giving effect to subsequent changes in value or write-ups, write-downs or write-offs with respect to such Investment.

For purposes of the definition of “Unrestricted Subsidiary,” the definition of “Restricted Payment” and the covenant described under “—Certain Covenants—Limitation on Restricted Payments”:

“Investment Grade Rating” means a rating equal to or higher than Baa3 (or the equivalent) by Moody’s and BBB– (or the equivalent) by Standard & Poor’s.

“Issue Date” means April 21, 2015.

“Legal Holiday” means a Saturday, a Sunday or a day on which banking institutions are not required to be open in the State of New York.

“Lien” means any mortgage, pledge, security interest, encumbrance, lien or charge of any kind (including any conditional sale or other title retention agreement or lease in the nature thereof).

“Material Change” means an increase or decrease (excluding changes that result solely from changes in prices and changes resulting from the incurrence of previously estimated development costs) of more than 30% during a fiscal quarter in the discounted future net revenues from proved oil and natural gas reserves of the Company and the Restricted Subsidiaries, calculated in accordance with clause (1)(a) of the definition of Adjusted Consolidated Net Tangible Assets; provided, however, that the following will be excluded from the calculation of Material Change:

“Moody’s” means Moody’s Investors Service, Inc. and any successor to its rating agency business.

“Net Available Cash” from an Asset Disposition means cash payments received therefrom (including any cash payments received by way of deferred payment of principal pursuant to a note or installment receivable or otherwise and proceeds from the sale or other disposition of any securities received as consideration, but only as and when received, but excluding any other consideration received in the form of assumption by the acquiring Person of Indebtedness or other obligations relating to such properties or assets or received in any other non-cash form), in each case net of:

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Notwithstanding the foregoing, to the extent that any or all of the Net Available Cash from an Asset Disposition made outside the United States of America is prohibited or delayed from being repatriated to the United States pursuant to applicable local law (or to the extent that the Board of Directors of the Company determines, in good faith, that repatriation of such Net Available Cash would have a material adverse tax consequence to the Company) despite reasonable effort by the Company or such Restricted Subsidiary to exclude or release those funds from such restrictions or to avoid such tax, the portion of such Net Available Cash so affected shall be deemed excluded from Net Available Cash for so long as such restrictions or material adverse tax consequences exist.

“Net Cash Proceeds,” with respect to any issuance or sale of Capital Stock or Indebtedness, means the cash proceeds of such issuance or sale net of attorneys’ fees, accountants’ fees, underwriters’ or placement agents’ fees, discounts or commissions and brokerage, consultant and other fees actually incurred in connection with such issuance or sale and net of taxes paid or payable as a result thereof. Notwithstanding anything to the contrary herein, all references herein to “Net Cash Proceeds” shall be deemed to mean cash in an amount equal to the amount of Net Cash Proceeds, but not necessarily the actual cash received from the relevant issuance or sale. The Company and its Restricted Subsidiaries shall have no obligation to segregate, trace or otherwise identify Net Cash Proceeds (other than the amount thereof), it being agreed that cash is fungible and that the Company’s obligations may be satisfied by the application of funds from other sources.

“Net Working Capital” of the Company means:

in each case, determined in accordance with GAAP.

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“Obligations” means, with respect to any Indebtedness, all obligations for principal, premium, interest, penalties, fees, indemnifications, reimbursements and other amounts payable pursuant to the documentation governing such Indebtedness.

“Offering Circular” means the final offering circular, dated April 16, 2015, relating to the offering of $350.0 million of Notes issued on the Issue Date.

“Officer” means the Chairman of the Board, the President, the Chief Financial Officer, any Vice President, the Treasurer or the Secretary of the Company.

“Officers’ Certificate” means a certificate signed by two Officers.

“Oil and Gas Business” means:

“Oil and Gas Liens” means:

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“Oil and Natural Gas Hedging Contract” means futures contract, swap, option, floor, cap, collar, forward sale, forward purchase or other agreement or arrangement relating to, or the value of which is dependent upon, crude oil, condensate, natural gas, natural gas liquids or other Hydrocarbons and Minerals, steam, electricity, by-products of the utilization of Hydrocarbons and Minerals or other assets commonly created, recovered, produced or used in the Oil and Gas Business or revenues or costs (including basis) associated with the Oil and Gas Business, and equities, bonds, or indices based on any of the foregoing and any other derivative agreement or arrangement based on any of the foregoing.

“Opinion of Counsel” means a written opinion from legal counsel who is acceptable to the Trustee. The counsel may be an employee of or counsel to the Company or the Trustee.

“Permitted Business Investments” means Investments made in the ordinary course of, and of a nature that is or shall have become customary in, the Oil and Gas Business, either generally or in the particular geographical location or industry segment in which such Investment is made, in each case as determined in good faith by the Company, including investments or expenditures for actively exploiting, exploring for, acquiring, developing, producing, processing, gathering, marketing, transporting or otherwise dealing with Hydrocarbons and Minerals or Hydrocarbon and Mineral Properties (including with respect to plugging and abandonment) through agreements, transactions, interests or arrangements that permit one to share risk or costs, comply with regulatory requirements regarding local ownership or satisfy other objectives customarily achieved through the conduct of the Oil and Gas Business jointly with third parties, including:

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“Permitted Grizzly Disposition” means a sale, lease, transfer or other disposition or issuance of any or all (or substantially all) of the Capital Stock or assets of Grizzly Holdings.

“Permitted Investment” means an Investment by the Company or any Restricted Subsidiary in:

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For purposes of this definition, in the event that a proposed Investment (or portion thereof) meets the criteria of more than one of the categories of Permitted Investments described in clauses (1) through (22) above, the Company will be entitled to classify (but not reclassify) such Investment (or portion thereof) in one or more of such categories set forth above, but, notwithstanding the foregoing, any Investment made in a Person pursuant to clause (22) above may be reclassified as outstanding under clause (1) above (and no longer outstanding under clause (22) above) if such Person thereafter becomes a Restricted Subsidiary.

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“Permitted Liens” means, with respect to any Person:

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In each case set forth above and in the definition of the term “Oil and Gas Liens,” notwithstanding any stated limitation on the assets or property that may be subject to such Lien, a Permitted Lien or an Oil and Gas Lien on a specified asset or property or group or type of assets or property may include Liens on all improvements, repairs, additions, attachments and accessions thereto, assets and property affixed or appurtenant thereto, construction thereon, parts, replacements and substitutions therefor, and all products and proceeds thereof, including dividends, distributions, interest and increases in respect thereof.

“Person” means any individual, corporation, partnership, limited liability company, joint venture, association, joint-stock company, trust, unincorporated organization, government or any agency or political subdivision thereof or any other entity.

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“Preferred Stock,” as applied to the Capital Stock of any Person, means Capital Stock of any class or classes (however designated) which is preferred as to the payment of dividends or distributions, or as to the distribution of assets upon any voluntary or involuntary liquidation or dissolution of such Person, over shares of Capital Stock of any other class of such Person.

“principal” of a Note means the principal of the Note plus the premium, if any, payable on the Note which is due or overdue or is to become due at the relevant time.

“Production Payments” means, collectively, Dollar-Denominated Production Payments and Volumetric Production Payments.

“Production Payments and Reserve Sales” means the grant or transfer to any Person of a Dollar-Denominated Production Payment, Volumetric Production Payment, royalty, overriding royalty, net profits interest, master limited partnership interest or other interest in oil and natural gas properties, reserves or the right to receive all or a portion of the production or the proceeds from the sale of production attributable to such properties or reserves.

“Purchase Money Indebtedness” means Indebtedness (including Capital Lease Obligations) (1) consisting of the deferred purchase price of property, conditional sale obligations, obligations under any title retention agreement, other purchase money obligations and obligations in respect of industrial revenue bonds or similar Indebtedness, in each case where the maturity of such Indebtedness does not exceed the anticipated useful life of the asset being financed, and (2) Incurred to finance the purchase, lease or improvement by the Company or a Restricted Subsidiary of such property; provided, however, that such Indebtedness is Incurred within 180 days after such acquisition of such property.

“Qualifying Equity Offering” means the issuance after the Issue Date of Capital Stock of the Company (other than Disqualified Stock) to any Person or Persons other than a Subsidiary of the Company.

“Refinance” means, in respect of any Indebtedness, to refinance or refund or to issue other Indebtedness in exchange or replacement for, such Indebtedness (whether contemporaneously with the satisfaction of such Indebtedness or within 180 days of such satisfaction). “Refinanced” and “Refinancing” shall have correlative meanings.

“Refinancing Indebtedness” means Indebtedness that Refinances any Indebtedness of the Company or any Restricted Subsidiary existing on the Issue Date or Incurred in compliance with the Indenture, including Indebtedness that Refinances Refinancing Indebtedness; provided, however, that:

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provided further, however, that Refinancing Indebtedness shall not include (A) Indebtedness of a Restricted Subsidiary that is not a Subsidiary Guarantor that Refinances Indebtedness of the Company or a Subsidiary Guarantor and (B) Indebtedness of the Company or a Restricted Subsidiary that Refinances Indebtedness of an Unrestricted Subsidiary.

“Registration Rights Agreement” means the Registration Rights Agreement dated the Issue Date, among the Company, the Subsidiary Guarantors and the initial purchasers.

“Related Business” means any Oil and Gas Business, any business in which the Company, any of its Restricted Subsidiaries or any Person in which the Company or any Restricted Subsidiary had an Investment was engaged on the Issue Date, and any business related, ancillary or complementary to any of the foregoing.

“Restricted Payment” with respect to any Person means:

“Restricted Subsidiary” means any Subsidiary of the Company that is not an Unrestricted Subsidiary.

“Sale/Leaseback Transaction” means an arrangement relating to property owned by the Company or a Restricted Subsidiary on the Issue Date or thereafter acquired by the Company or a Restricted Subsidiary whereby the Company or a Restricted Subsidiary transfers such property to a Person (other than the Company or a Restricted Subsidiary) and thereafter the Company or a Restricted Subsidiary leases it from such Person.

“SEC” means the Securities and Exchange Commission.

“Securities Act” means the U.S. Securities Act of 1933, as amended.

“Senior Indebtedness” means with respect to any Person:

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“Significant Subsidiary” means any Restricted Subsidiary that would be a “Significant Subsidiary” of the Company within the meaning of Rule 1-02 under Regulation S-X promulgated by the SEC.

“Standard & Poor’s” means Standard & Poor’s, a division of The McGraw-Hill Companies, Inc., and any successor to its rating agency business.

“Stated Maturity” means, with respect to any security, the date specified in such security as the fixed date on which the final payment of principal of such security is due and payable, including pursuant to any mandatory redemption provision (but excluding any provision providing for the repurchase of such security at the option of the holder thereof upon the happening of any contingency unless such contingency has occurred).

“Subordinated Obligation” means, with respect to a Person, any Indebtedness of such Person (whether outstanding on the Issue Date or thereafter Incurred) that is subordinate in right of payment to the Notes or a Subsidiary Guaranty of such Person, as the case may be, pursuant to a written agreement to that effect.

“Subsidiary” means, with respect to any Person, any corporation, association, partnership or other business entity of which more than 50% of the total voting power of shares of Voting Stock is at the time owned or controlled, directly or indirectly, by:

Unless otherwise specified, “Subsidiary” means a Subsidiary of the Company.

“Subsidiary Guarantor” means each Subsidiary of the Company that executes the Indenture as a guarantor and each other Subsidiary of the Company that thereafter Guarantees the Notes pursuant to the terms of the Indenture, in each case unless and until such Subsidiary is released from its obligations under its Subsidiary Guaranty pursuant to the terms of the Indenture.

“Subsidiary Guaranty” means a Guarantee by a Subsidiary Guarantor of the Company’s obligations with respect to the Notes.

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“Temporary Cash Investments” means any of the following:

“Trustee” means Wells Fargo Bank, N.A. until a successor replaces it and, thereafter, means the successor.

“Trust Indenture Act” means the Trust Indenture Act of 1939 (15 U.S.C. §§ 77aaa-77bbbb) as in effect on the Issue Date.

“Trust Officer” means the Chairman of the Board, the President or any other officer or assistant officer of the Trustee assigned by the Trustee to administer its corporate trust matters.

“Unrestricted Subsidiary” means:

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in each case unless and until such time as such Subsidiary is designated a Restricted Subsidiary for the purposes of the Indenture. The Board of Directors may designate any Subsidiary of the Company (including any newly acquired or newly formed Subsidiary) to be an Unrestricted Subsidiary unless such Subsidiary or any of its Subsidiaries owns any Capital Stock or Indebtedness of, or holds any Lien on any property of, the Company or any other Restricted Subsidiary of the Company that is not a Subsidiary of the Subsidiary to be so designated; provided, however, that either (A) the Subsidiary to be so designated has total assets of $1,000 or less or (B) if such Subsidiary has assets greater than $1,000, such designation would not be prohibited by the covenant described under “—Certain Covenants—Limitation on Restricted Payments” (the amount of any such Restricted Payment or Permitted Investment being calculated in the manner set forth in the definition of the term “Investment”).

The Board of Directors may designate any Unrestricted Subsidiary to be a Restricted Subsidiary; provided, however, that immediately after giving effect to such designation (A) the Company could Incur $1.00 of additional Indebtedness under paragraph (a) of the covenant described under “—Certain Covenants—Limitation on Indebtedness” and (B) no Default shall have occurred and be continuing. Any such designation by the Board of Directors shall be evidenced to the Trustee by promptly filing with the Trustee a copy of the resolution of the Board of Directors giving effect to such designation and an Officers’ Certificate certifying that such designation complied with the foregoing provisions.

“U.S. Government Obligations” means direct obligations (or certificates representing an ownership interest in such obligations) of the United States of America (including any agency or instrumentality thereof) for the payment of which the full faith and credit of the United States of America is pledged and which are not callable at the issuer’s option.

“Volumetric Production Payments” means production payment obligations recorded as deferred revenue in accordance with GAAP, together with all undertakings and obligations in connection therewith.

“Voting Stock” of a Person means all classes of Capital Stock of such Person then outstanding and normally entitled (without regard to the occurrence of any contingency) to vote in the election of directors, managers or trustees thereof.

“Wholly Owned Subsidiary” means a Restricted Subsidiary all the Capital Stock of which (other than directors’ qualifying shares and shares required by applicable law to be held by a Person other than the Company or a Restricted Subsidiary) is owned by the Company or one or more other Wholly Owned Subsidiaries.

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BOOK-ENTRY SETTLEMENT AND CLEARANCE

We will issue the Exchange Notes in the form of one or more global Exchange Notes, or the Global Exchange Note. The Global Exchange Note will be deposited with, or on behalf of, The Depository Trust Company, or DTC, and registered in the name of the DTC or its nominee. Except as set forth below, the Global Exchange Note may be transferred, in whole and not in part, and only to DTC or another nominee of DTC. You may hold your beneficial interests in the Global Exchange Note directly through DTC if you have an account with DTC or indirectly through organizations that have accounts with DTC.

DTC has advised us that it is:

DTC was created to hold securities for its participants and to facilitate the clearance and settlement of securities transactions between its participants through electronic book-entry changes to the accounts of its participants. DTC’s participants include securities brokers and dealers, including the initial purchasers; banks and trust companies; clearing corporations and other organizations. Indirect access to DTC’s system is also available to others such as banks, brokers, dealers and trust companies; these indirect participants clear through or maintain a custodial relationship with a DTC participant, either directly or indirectly. Investors who are not DTC participants may beneficially own securities held by or on behalf of DTC only through DTC participants or indirect participants in DTC.

So long as DTC’s nominee is the registered owner of a Global Exchange Note, that nominee will be considered the sole owner or holder of the Exchange Notes represented by that Global Exchange Note for all purposes under the Indenture. Except as provided below under “—Certificated Notes,” owners of beneficial interests in a Global Exchange Note:

As a result, each investor who owns a beneficial interest in a Global Exchange Note must rely on the procedures of DTC to exercise any rights of a holder of Exchange Notes under the Indenture (and, if the investor is not a participant or an indirect participant in DTC, on the procedures of the DTC participant through which the investor owns its interest). Payments of principal, premium (if any) and interest with respect to the Exchange Notes represented by a Global Exchange Note will be made by the trustee to DTC’s nominee as the registered holder of the Global Exchange Note. We understand that under existing industry practice, in the event an owner of a beneficial interest in the Global Exchange Note desires to take any action that the DTC, as the holder of the Global Exchange Note, is entitled to take, the DTC would authorize the participants to take such action, and the participants would authorize beneficial owners owning through such participants to take such action or would otherwise act upon the instructions of beneficial owners owning through them.

We will make payments of principal of, premium, if any, and interest on Exchange Notes represented by the Global Exchange Note registered in the name of and held by the DTC or its nominee to the DTC or its nominee,

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as the case may be, as the registered owner and holder of the Global Exchange Note. We expect that the DTC or its nominee, upon receipt of any payment of principal of, premium, if any, or interest on the Global Exchange Note will credit participants’ accounts with payments in amounts proportionate to their respective beneficial interests in the principal amount of the Global Exchange Note as shown on the records of the DTC or its nominee. We also expect that payments by participants or indirect participants to owners of beneficial interests in the Global Exchange Note held through such participants or indirect participants will be governed by standing instructions and customary practices and will be the responsibility of such participants or indirect participants. We will not have any responsibility or liability for any aspect of the records relating to, or payments made on account of, beneficial ownership interests in the Global Exchange Note for any Exchange Note or for maintaining, supervising or reviewing any records relating to such beneficial ownership interests or for any other aspect of the relationship between the DTC and its participants or indirect participants or the relationship between such participants or indirect participants and the owners of beneficial interests in the Global Exchange Note owning through such participants. Transfers between participants in DTC will be effected under DTC’s procedures and will be settled in same-day funds.

Although the DTC has agreed to the foregoing procedures in order to facilitate transfers of interests in the Global Exchange Note among participants of the DTC, it is under no obligation to perform or continue to perform such procedures, and such procedures may be discontinued at any time. Neither the Trustee nor the Company will have any responsibility or liability for the performance by the DTC or its participants or indirect participants of their respective obligations under the rules and procedures governing their operations.

Certificated Notes

Exchange Notes in physical, certificated form will be issued and delivered to each person that DTC identifies as a beneficial owner of the related Exchange Notes only if:

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MATERIAL U.S. FEDERAL INCOME TAX CONSEQUENCES

The following is a summary of material U.S. federal income tax consequences of the exchange of 2015 Notes for Exchange Notes pursuant to the exchange offer, but does not purport to be a complete analysis of all potential tax considerations. This summary is based upon the Internal Revenue Code of 1986, as amended, or the Code, the Treasury Regulations promulgated or proposed thereunder, and administrative and judicial interpretations thereof, all as of the date hereof and all of which are subject to change, possibly on a retroactive basis.

This summary is limited to the tax consequences of those persons who are original beneficial owners of the 2015 Notes, who exchange 2015 Notes for Exchange Notes in the exchange offer, and that will hold the Exchange Notes as capital assets within the meaning of Section 1221 of the Code, which we refer to as Holders. This summary does not purport to deal with all aspects of U.S. federal income taxation that might be relevant to particular Holders in light of their particular circumstances or status nor does it address specific tax consequences that may be relevant to particular persons (including, for example, financial institutions, broker-dealers, insurance companies, partnerships or other pass-through entities, expatriates, banks, real estate investment trusts, regulated investment companies, tax-exempt organizations and persons that have a functional currency other than the U.S. dollar, or persons in special situations, such as those who have elected to mark securities to market or those who hold 2015 Notes as part of a straddle, hedge, conversion transaction or other integrated investment). In addition, this summary does not address U.S. federal alternative minimum, estate and gift tax consequences or consequences under the tax laws of any state, local or foreign jurisdiction. We have not sought any ruling from the Internal Revenue Service, or the IRS, with respect to the statements made and the conclusions reached in this summary, and we cannot assure you that the IRS will agree with such statements and conclusions.

If a partnership or other entity treated as a partnership for U.S. federal income tax purposes holds 2015 Notes and participates in the exchange offer, the tax treatment of a partner generally will depend upon the status of the partner and the activities of the partnership. If you are a partner of a partnership holding the 2015 Notes, you should consult your tax advisor regarding the tax consequences of the exchange of 2015 Notes for Exchange Notes pursuant to the exchange offer.

This summary is for general information only. Persons considering the exchange of 2015 Notes for Exchange Notes are urged to consult their independent tax advisors concerning the U.S. federal income tax and other tax consequences to them of exchanging the 2015 Notes, as well as the application of state, local and foreign income and other tax laws.

Exchange of a 2014 Note for an Exchange Note Pursuant to the Exchange Offer

The Exchange Notes described herein will not differ materially in kind or extent from the 2015 Notes. Your exchange of 2015 Notes for Exchange Notes will not constitute a taxable disposition of the 2015 Notes for U.S. federal income tax purposes. As a result, (1) you will not recognize taxable income, gain or loss on such exchange, (2) your holding period for the Exchange Notes will generally include the holding period of the 2015 Notes so exchanged, and (3) your adjusted tax basis in the Exchange Notes will generally be the same as your adjusted tax basis in the 2015 Notes so exchanged.

THE PRECEDING DISCUSSION OF MATERIAL U.S. FEDERAL INCOME TAX CONSEQUENCES IS FOR GENERAL INFORMATION ONLY AND IS NOT TAX ADVICE. DUE TO THE COMPLEXITY OF THE U.S. FEDERAL INCOME TAX RULES APPLICABLE TO NOTEHOLDERS AND THE CONSIDERABLE UNCERTAINTY THAT EXISTS WITH RESPECT TO MANY ASPECTS OF THOSE RULES, EACH NOTEHOLDER SHOULD CONSULT ITS OWN TAX ADVISOR REGARDING THE PARTICULAR FEDERAL, STATE, LOCAL AND NON-U.S. TAX CONSEQUENCES OF PARTICIPATING IN THE EXCHANGE OFFER AND OF OWNING AND DISPOSING OF EXCHANGE NOTES, INCLUDING THE CONSEQUENCES OF ANY PROPOSED CHANGE IN APPLICABLE LAWS.

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PLAN OF DISTRIBUTION

Based on interpretations of the SEC set forth in no-action letters issued to third parties, we believe that the Exchange Notes issued under the exchange offer in exchange for 2015 Notes may be offered for resale, resold and otherwise transferred by you without compliance with the registration and prospectus delivery provisions of the Securities Act, provided:

If you tender 2015 Notes in the exchange offer with the intention of participating in any manner in a distribution of the Exchange Notes:

Each broker-dealer that receives Exchange Notes for its own account pursuant to the exchange offer must acknowledge that it will deliver a prospectus in connection with any resale of the Exchange Notes. This prospectus, as it may be amended or supplemented from time to time, may be used by a broker dealer in connection with resales of Exchange Notes received in exchange for 2015 Notes where such 2015 Notes were acquired as a result of market-marking activities or other trading activities. We have agreed that, for a period of 180 days after the effective date of this prospectus, we will make this prospectus, as amended or supplemented, available to any broker-dealer for use in connection with any such resale.

We will not receive any proceeds from any sale of the Exchange Notes by broker-dealers. Exchange Notes received by broker-dealers for their own accounts pursuant to the exchange offer may be sold from time to time in one or more transactions in the over-the-counter market, in negotiated transactions, through the writing of options on the Exchange Notes or a combination of such methods of resale, at market prices prevailing at the time of resale, at prices related to such prevailing market prices or negotiated prices. Any such resale may be made directly to purchasers or to or through brokers or dealers who may receive compensation in the form of commissions or concessions from any such broker-dealer and/or the purchasers of any such Exchange Notes. Any broker-dealer that resells Exchange Notes that were received by it for its own account pursuant to the exchange offer and any broker or dealer that participates in a distribution of such Exchange Notes may be deemed to be an “underwriter” within the meaning of the Securities Act and any profit on any such resale of Exchange Notes and any commissions or concessions received by any such persons may be deemed to be underwriting compensation under the Securities Act. The letter of transmittal states that, by acknowledging that it will deliver and by delivering a prospectus, a broker-dealer will not be deemed to admit that it is an “underwriter” within the meaning of the Securities Act.

For a period of 180 days after the effective date of this prospectus, we will promptly send additional copies of this prospectus and any amendment to this prospectus to any broker-dealer that requests such documents. We have agreed, in connection with the exchange offer, to indemnify the holders of 2015 Notes and Exchange Notes against certain liabilities, including liabilities under the Securities Act.

By acceptance of the exchange offer, each broker-dealer that receives Exchange Notes pursuant to the exchange offer hereby agrees to notify us prior to using the prospectus in connection with the sale or transfer of Exchange Notes, and acknowledges and agrees that, upon receipt of notice from us of the happening of any event which makes any statement in the prospectus untrue in any material respect or which requires the making of any

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changes in the prospectus in order to make the statements therein not misleading (which notice we agree to deliver promptly to such broker-dealer), such broker-dealer will suspend use of the prospectus until we have amended or supplemented the prospectus to correct such misstatement or omission and has furnished copies of the amended or supplemented prospectus to such broker-dealer.

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LEGAL MATTERS

The validity of the Exchange Notes offered hereby will be passed upon for us by Akin Gump Strauss Hauer & Feld LLP.

EXPERTS

The audited financial statements of Gulfport Energy Corporation and management’s assessment of the effectiveness of internal control over financial reporting incorporated by reference in this prospectus and elsewhere in the registration statement have been so incorporated by reference in reliance upon the reports of Grant Thornton LLP, independent registered public accountants, upon the authority of said firm as experts in accounting and auditing.

The financial statements of Diamondback Energy, Inc. incorporated by reference in this prospectus and elsewhere in the registration statement have been so incorporated by reference in reliance upon the report of Grant Thornton LLP, independent registered public accountants, upon the authority of said firm as experts in accounting and auditing.

Information included in or incorporated by reference into this prospectus regarding estimates of our proved oil and natural gas reserves and the discounted present value of estimated future net revenue before income tax of our estimated proved reserves is based on reports included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2014, prepared by Netherland, Sewell & Associates, Inc., with respect to our WCBB, Hackberry and Niobrara fields, and by Ryder Scott Company L.P., with respect to our Utica Shale acreage. All of such information has been so included or incorporated by reference herein in reliance upon the authority of such firms as experts in such matters.

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GLOSSARY OF OIL AND GAS TERMS

The following is a description of the meanings of some of the oil and natural gas industry terms used in this prospectus.

BBL. Stock tank barrel, or 42 U.S. gallons liquid volume, used in this prospectus in reference to crude oil or other liquid hydrocarbons.

BOE. Barrels of oil equivalent, with six thousand cubic feet of natural gas being equivalent to one barrel of oil.

BTU or British thermal unit. The quantity of heat required to raise the temperature of one pound of water by one degree Fahrenheit.

Condensate. Liquid hydrocarbons associated with the production of a primarily natural gas reserve.

Field. An area consisting of either a single reservoir or multiple reservoirs, all grouped on or related to the same individual geological structural feature and/or stratigraphic condition.

MBBLS. Thousand barrels of crude oil or other liquid hydrocarbons.

MBOE. Thousand barrels of oil equivalent.

MCF. Thousand cubic feet of natural gas.

MMBTU. Million British Thermal Units.

MMCF. Million cubic feet of natural gas.

Net revenue interest (NRI). An owner’s interest in the revenues of a well after deducting proceeds allocated to royalty and overriding interests.

Plugging and abandonment. Refers to the sealing off of fluids in the strata penetrated by a well so that the fluids from one stratum will not escape into another or to the surface. Regulations of all states require plugging of abandoned wells.

PUD. Proved undeveloped.

Present value of future net revenues (PV-10). The present value of estimated future revenues to be generated from the production of proved reserves, before income taxes, of proved reserves calculated in accordance with Financial Accounting Standards Board guidelines, net of estimated production and future development costs, using prices and costs as of the date of estimation without future escalation, without giving effect to hedging activities, non-property related expenses such as general and administrative expenses, debt service and depreciation, depletion and amortization, and discounted using an annual discount rate of 10%.

Productive well. A well that is found to be capable of producing hydrocarbons in sufficient quantities such that proceeds from the sale of the production exceed production expenses and taxes.

Proved reserves. The estimated quantities of oil, natural gas and natural gas liquids which geological and engineering data demonstrate with reasonable certainty to be commercially recoverable in future years from known reservoirs under existing economic and operating conditions.

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Proved undeveloped reserves (PUD). Proved reserves that are expected to be recovered from new wells drilled to known reservoirs on undrilled acreage for which the existence and recoverability of such reserves can be estimated with reasonable certainty, or from existing wells on which a relatively major expenditure is required to establish production.

Reservoir. A porous and permeable underground formation containing a natural accumulation of producible natural gas and/or oil that is confined by impermeable rock or water barriers and is separate from other reservoirs.

Standardized Measure. The present value of estimated future cash inflows from proved oil and natural gas reserves, less future development, abandonment, production and future income tax expenses, discounted at 10% per annum to reflect timing of future cash flows and using the same pricing assumptions as were used to calculate PV-10. Standardized Measure differs from PV-10 because Standardized Measure includes the effect of future income taxes.

Undeveloped acreage. Lease acreage on which wells have not been drilled or completed to a point that would permit the production of commercial quantities of oil and natural gas regardless of whether such acreage contains proved reserves.

Working interest (WI). The operating interest that gives the owner the right to drill, produce and conduct operating activities on the property and receive a share of production and requires the owner to pay a share of the costs of drilling and production operations.

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Gulfport Energy Corporation

Offer to Exchange

6.625% Senior Notes due 2023

PROSPECTUS

                    , 2015

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PART II

INFORMATION NOT REQUIRED IN PROSPECTUS

Item 20. Indemnification of Directors and Officers.

Delaware Law

Section 145 of the Delaware General Corporation Law, or the DGCL, permits a corporation, under specified circumstances, to indemnify its directors, officers, employees or agents against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlements actually and reasonably incurred by them in connection with any action, suit or proceeding brought by third parties by reason of the fact that they were or are directors, officers, employees or agents of the corporation, if such directors, officers, employees or agents acted in good faith and in a manner they reasonably believed to be in or not opposed to the best interests of the corporation and, with respect to any criminal action or proceeding, had no reasonable cause to believe their conduct was unlawful. In a derivative action, i.e., one by or in the right of the corporation, indemnification may be made only for expenses actually and reasonably incurred by directors, officers, employees or agents in connection with the defense or settlement of an action or suit, and only with respect to a matter as to which they shall have acted in good faith and in a manner they reasonably believed to be in or not opposed to the best interests of the corporation, except that no indemnification shall be made if such person shall have been adjudged liable to the corporation, unless and only to the extent that the Court of Chancery or the court in which the action or suit was brought shall determine upon application that the defendant directors, officers, employees or agents are fairly and reasonably entitled to indemnity for such expenses despite such adjudication of liability.

We have adopted provisions in our Amended and Restated Bylaws, or Bylaws, and our Restated Certificate of Incorporation, or Certificate, which provide for indemnification of our officers and directors to the maximum extent permitted under the DGCL, as amended.

Certificate of Incorporation and Bylaws

Our Certificate provides that no director shall be personally liable to us or any of our stockholders for monetary damages resulting from breaches of their fiduciary duty as directors, except to the extent such limitation on or exemption from liability is not permitted under the DGCL. The effect of this provision of our Certificate is to eliminate our rights and those of our stockholders (through stockholders’ derivative suits on our behalf) to recover monetary damages against a director for breach of the fiduciary duty of care as a director, including breaches resulting from negligent or grossly negligent behavior, except, as restricted by the DGCL: (i) for any breach of the director’s duty of loyalty to the corporation or its stockholders; (ii) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law; (iii) in respect of certain unlawful dividend payments or stock redemptions or repurchases or (iv) for any transaction from which the director derived an improper personal benefit.

If the DGCL is amended to authorize corporate action further eliminating or limiting the liability of directors, then, in accordance with our Certificate, the liability of our directors to us or our stockholders will be eliminated or limited to the fullest extent authorized by the DGCL, as so amended. Any repeal or modification by our stockholders of provisions of our Certificate affecting indemnification rights will be prospective only, and will not in any way diminish or adversely affect any limitation on the personal liability of a director existing at the time of such repeal or modification.

Our Bylaws provide that we will, to the fullest extent authorized or permitted by applicable law, as the same exists or may hereafter be amended, indemnify and hold harmless our current and former directors and officers, as well as those persons who, while directors or officers of our corporation, are or were serving at our request as directors, officers, employees or agents of another entity, trust or other enterprise, including service with respect to an employee benefit plan, in connection with any threatened, pending or completed action, suit or proceeding brought by reason of the fact that such person serves or served in one or more of the foregoing roles, whether

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civil, criminal, administrative or investigative, against all expense, liability and loss (including, without limitation, attorney’s fees, judgments, fines, ERISA excise taxes and penalties and amounts paid in settlement) reasonably incurred or suffered by any such person in connection with any such proceeding. Notwithstanding the foregoing, a person eligible for indemnification pursuant to our Bylaws will be indemnified by us in connection with a proceeding initiated by such person only if such proceeding was authorized by our board of directors, except for proceedings to enforce rights to indemnification.

The right to indemnification conferred by our Bylaws is a contract right that includes the right to be paid by us the expenses (including, without limitation, attorney’s fees) incurred in defending or otherwise participating in any proceeding referenced above in advance of its final disposition, provided, however, that if the DGCL requires, an advancement of expenses incurred by any officer or director (solely in the capacity as an officer or director of our corporation) will be made only upon delivery to us of an undertaking, by or on behalf of such officer or director, to repay all amounts so advanced if it is ultimately determined by final judicial decision from which there is no further right to appeal that such person is not entitled to be indemnified for such expenses under our Certificate or otherwise.

The rights to indemnification and advancement of expenses will not be deemed exclusive of any other rights which any person covered by our Bylaws may have or hereafter acquire under law, our Certificate, our Bylaws, an agreement, vote of stockholders or disinterested directors, or otherwise.

Our Bylaws include provisions relating to advancement of expenses and indemnification rights consistent with those set forth in our Certificate. In addition, our Bylaws provide for a right of indemnitee to bring a suit in the event a claim for indemnification or advancement of expenses is not paid in full by us within a specified period of time. Our Bylaws also permit us to purchase and maintain insurance, at our expense, to protect us and/or any director, officer, employee or agent of our corporation or another entity, trust or other enterprise against any expense, liability or loss, whether or not we would have the power to indemnify such person against such expense, liability or loss under the DGCL.

Any repeal or amendment of provisions of our Bylaws affecting indemnification rights, whether by our board of directors, stockholders or by changes in law, or the adoption of any other provisions inconsistent therewith, will (unless otherwise required by law) be prospective only, except to the extent such amendment or change in law permits us to provide broader indemnification rights on a retroactive basis, and will not in any way diminish or adversely affect any right or protection existing at the time of such repeal or amendment or adoption of such inconsistent provision with respect to any act or omission occurring prior to such repeal or amendment or adoption of such inconsistent provision. Our Bylaws also permit us, to the extent and in the manner authorized or permitted by law, to indemnify and to advance expenses to persons other that those specifically covered by our Certificate.

Indemnification Agreements

We have entered into indemnification agreements with each of our current directors. These agreements require us to indemnify these individuals to the fullest extent permitted under Delaware law against liabilities that may arise by reason of their service to us, and to advance expenses incurred as a result of any proceeding against them as to which they could be indemnified.

We maintain director and officer liability insurance providing insurance protection for specified liabilities under specified term.

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Item 21. Exhibits and Financial Statement Schedules.

(a) The following documents are filed as exhibits to this Registration Statement.

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(B) Financial Statement Schedules.

All schedules are omitted because the required information is (i) not applicable, (ii) not present in amounts sufficient to require submission of the schedule or (iii) included in our financial statements and the accompanying notes included in the prospectus to this Registration Statement.

Item 22. Undertakings.

Insofar as indemnification for liabilities arising under the Securities Act of 1933, as amended, or the Securities Act, may be permitted to directors, officers and controlling persons of the registrants, we have been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by a registrant of expenses incurred or paid by a director, officer or controlling person of such

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registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, such registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act and will be governed by the final adjudication of such issue.

Each registrant hereby undertakes:

To file, during any period in which offers or sales are being made, a post-effective amendment to this registration statement:

(a) to include any prospectus required by section 10(a)(3) of the Securities Act of 1933;

(b) to reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the SEC pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than 20% change in the maximum aggregate offering price set forth in the “Calculation of Registration Fee” table in the effective registration statement; and

(c) to include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement.

That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.

That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser, if such registrant is subject to Rule 430C, each prospectus filed pursuant to Rule 424(b) as part of a registration statement relating to an offering, other than registration statements relying on Rule 430B or other than prospectuses filed in reliance on Rule 430A, shall be deemed to be part of and included in the registration statement as of the date it is first used after effectiveness. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such first use, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such date of first use.

That, for the purpose of determining liability of such registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities, in a primary offering of securities of such registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:

(a) any preliminary prospectus or prospectus of the undersigned registrants relating to the offering required to be filed pursuant to Rule 424;

(b) any free writing prospectus relating to the offering prepared by or on behalf of such registrant or used or referred to by the undersigned registrants;

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(c) the portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrants or their securities provided by or on behalf of such registrant; and

(d) any other communication that is an offer in the offering made by such registrant to the purchaser.

That, for purposes of determining any liability under the Securities Act of 1933, each filing of a registrant annual report pursuant to section 13(a) or section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.

To respond to requests for information that is incorporated by reference into the prospectus pursuant to Items 4, 10(b), 11, or 13 of this Form, within one business day of receipt of such request, and to send the incorporated documents by first class mail or other equally prompt means. This includes information contained in documents filed subsequent to the effective date of the registration statement through the date of responding to the request.

To supply by means of a post-effective amendment all information concerning a transaction, and the company being acquired involved therein, that was not the subject of and included in the registration statement when it became effective.

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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Oklahoma City, State of Oklahoma, on August 24, 2015.

POWER OF ATTORNEY

Each person whose signature appears below hereby constitutes and appoints Michael G. Moore and Aaron M. Gaydosik, and each of them, his true and lawful agent, proxy and attorney-in-fact, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to (i) act on, sign and file with the Securities and Exchange Commission any and all amendments (including post-effective amendments) to this registration statement together with all schedules and exhibits thereto and any subsequent registration statement filed pursuant to Rule 462(b) under the Securities Act of 1933, as amended, together with all schedules and exhibits thereto, (ii) act on, sign and file such certificates, instruments, agreements and other documents as may be necessary or appropriate in connection therewith, (iii) act on and file any supplement to any prospectus included in this registration statement or any such amendment or any subsequent registration statement filed pursuant to Rule 462(b) under the Securities Act of 1933, as amended, and (iv) take any and all actions which may be necessary or appropriate to be done, as fully for all intents and purposes as he might or could do in person, hereby approving, ratifying and confirming all that such agent, proxy and attorney-in-fact or any of his substitutes may lawfully do or cause to be done by virtue thereof.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities indicated on August 24, 2015.

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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Oklahoma City, State of Oklahoma, on August 24, 2015.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities indicated on August 24, 2015.

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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Oklahoma City, State of Oklahoma, on August 24, 2015.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities indicated on August 24, 2015.

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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Oklahoma City, State of Oklahoma, on August 24, 2015.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities indicated on August 24, 2015.

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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Oklahoma City, State of Oklahoma, on August 24, 2015.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities indicated on August 24, 2015.

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SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Registrant has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Oklahoma City, State of Oklahoma, on August 24, 2015.

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities indicated on August 24, 2015.

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EXHIBIT INDEX

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