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Acquisitions (Details) (USD $)
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0 Months Ended | 1 Months Ended | 12 Months Ended | 0 Months Ended | 23 Months Ended | |||||
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Dec. 24, 2012
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Feb. 28, 2011
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 21, 2012
Utica Shale [Member]
acre
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Dec. 18, 2012
Utica Shale [Member]
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Dec. 19, 2012
Utica Shale [Member]
acre
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Dec. 31, 2012
Utica Shale [Member]
acre
wells
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Dec. 17, 2012
Utica Shale [Member]
acre
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| Business Acquisition [Line Items] | ||||||||||
| Period allowed for refusal | 6 months | |||||||||
| Affiliates participation ratio | 50.00% | |||||||||
| Gas and oil areage, undeveloped, net | 37,000 | 7,000 | 106,000 | 30,000 | ||||||
| Cash price of ownership interest | $ 70,000,000 | $ 302,000,000 | $ 372,000,000 | $ 619,600,000 | ||||||
| Gas and oil areage, undeveloped, gross (acres) | 137,000 | |||||||||
| Amount put in escrow | 53,900,000 | |||||||||
| Number Of Wells Owned | 14 | |||||||||
| Proceeds from issuance of common stock, net of offering costs, and exercise of stock options | $ 427,900,000 | $ 427,091,000 | $ 307,154,000 | $ 21,879,000 | ||||||
| X | ||||||||||
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- Definition
Affiliates participation in acquisition ratio No definition available.
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- Definition
Number Of Wells Owned No definition available.
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- Definition
Right of Refusal, Period Allowed No definition available.
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- Details
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- Definition
The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Lease area in which a working interest is owned and on which wells have not been drilled or completed to a point that would permit the production of commercial quantities of oil and gas regardless of whether or not such area contains proved reserves. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Fractional interest owned based on working interests or other economic arrangements of lease area on which wells have not been drilled or completed to a point that would permit the production of commercial quantities of oil and gas regardless of whether or not such area contains proved reserves. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash outflow to purchase long lived physical asset for use in the normal oil and gas operations and to purchase mineral interests in oil and gas properties not intended for resale. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash inflow from the additional capital contribution to the entity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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