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Acquisitions and Dispositions of Oil and Gas Properties (Tables) | 12 Months Ended
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Dec. 31, 2016
Business Combinations [Abstract] |
Results of Operations for Properties | Results of operations for the properties that were sold in 2015 and 2016 were as follows:
|  | Year Ended December 31, |
|  | 2014 |  |  | 2015 |  |  | 2016 |
|  | (In thousands) |
Total oil and gas sales |  | $ | 32,984 |  |  | $ | 30,169 |  |  | $ | 7,480 |
Total operating expenses(1) |  |  | (47,639 | ) |  |  | (83,275 | ) |  |  | (5,690 | )
Operating income (loss) |  | $ | (14,655 | ) |  | $ | (53,106 | ) |  | $ | 1,790 |
(1) | Includes direct operating expenses, depreciation, depletion and amortization and exploration expense. Excludes interest expense, general and administrative expenses and depreciation, depletion and amortization expense subsequent to the date the assets were designated as held for sale.

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- Definition Tabular disclosure of long lived assets held for sale. Disclosure may include the description of the facts and circumstances leading to the expected disposal, manner and timing of disposal, the carrying value of the assets held for sale, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64862545&loc=d3e2941-110230 + Details
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