UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of the Securities Exchange Act of 1934

Date of report (Date of earliest event reported): November 21, 2017

GULFPORT ENERGY CORPORATION

(Exact Name of Registrant as Specified in Charter)

(405) 252-4600

(Registrant’s telephone number, including area code)

Not Applicable

(Former name or former address, if changed since last report)

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company  ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

Check the appropriate box below if the Form 8-K is intended to simultaneously satisfy the filing obligation of the Registrant under any of the following provisions:

Amendment to Credit Facility

On November 21, 2017, Gulfport Energy Corporation, a Delaware corporation (“Gulfport”), as borrower, entered into an eleventh amendment to its secured revolving credit facility (the “Credit Facility”) with The Bank of Nova Scotia, as administrative agent, and the lenders party thereto (the “Eleventh Amendment”). The Eleventh Amendment, among other things, (i) decreased the applicable rate for all loans by 0.5% and (ii) added a provision that allows Gulfport to elect a commitment amount (the “Elected Commitment Amount”) that is less than the borrowing base. In connection with the Eleventh Amendment, the borrowing base was set at $1.2 billion, and Gulfport set the Elected Commitment Amount at $1.0 billion. As of November 21, 2017, approximately $240.0 million of letters of credit were outstanding under the Credit Facility and there were no outstanding borrowings under the Credit Facility.

The preceding summary of the Eleventh Amendment is qualified in its entirety by reference to the full text of such agreement, a copy of which is attached as Exhibit 10.1 hereto and incorporated herein by reference.

Item 2.03. Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.

The information set forth in Item 1.01 above with respect to the Eleventh Amendment is incorporated herein by reference, as applicable.

(d) Exhibits

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.