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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2015
Accounting Policies [Abstract] |
Summary of Oil and Gas Properties | Our oil and gas properties comprised the following (in thousands):
|  | December 31, |
|  | 2015 |  |  | 2014 |
Mineral interests in properties: |  |  |  |  |  |  |  |
Unproved leasehold costs |  | $ | 37,853 |  |  | $ | 46,240 |
Proved leasehold costs |  |  | 44,122 |  |  |  | 42,409 |
Wells and related equipment and facilities |  |  | 1,753,649 |  |  |  | 1,592,477 |
Support equipment |  |  | 9,545 |  |  |  | 8,518 |
Uncompleted wells, equipment and facilities |  |  | 8,612 |  |  |  | 18,634 |
Total costs |  |  | 1,853,781 |  |  |  | 1,708,278 |
Less accumulated depreciation, depletion and amortization |  |  | (702,139 | ) |  |  | (379,892 | )
Net capitalized costs |  | $ | 1,151,642 |  |  | $ | 1,328,386 |
Summary of Accrued Liabilities | The following is a summary of our accrued liabilities at December 31, 2015 and 2014 (in thousands):
|  | 2015 |  |  | 2014 |
Capital expenditures accrual |  | $ | 3,476 |  |  | $ | 43,870 |
Operating expenses and other |  |  | 9,988 |  |  |  | 6,868 |
Total |  | $ | 13,464 |  |  | $ | 50,738 |
Reconciliations of Numerators and Denominators of Basic and Diluted Earnings Per Share | The following are reconciliations of the numerators and denominators of our basic and diluted earnings per share, (dollars in thousands, except per-share amounts):
|  | For the Years Ended December 31, |
|  | 2015 |  |  | 2014 |  |  | 2013 |
Income (numerator): |  |  |  |  |  |  |  |  |  |  |  |
Net (loss) income — basic |  | $ | (174,104 | ) |  | $ | 56,172 |  |  | $ | 72,256 |
Weighted average shares (denominator): |  |  |  |  |  |  |  |  |  |  |  |
Weighted average shares — basic |  |  | 40,464,283 |  |  |  | 39,407,733 |  |  |  | 38,997,815 |
Dilution effect of share-based compensation, treasury method |  |  | — | (1) |  |  | 12,132 |  |  |  | 21,334 |
Weighted average shares — diluted |  |  | 40,464,283 |  |  |  | 39,419,865 |  |  |  | 39,019,149 |
Net (loss) income per share: |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | (4.30 | ) |  | $ | 1.43 |  |  | $ | 1.85 |
Diluted |  | $ | (4.30 | ) |  | $ | 1.42 |  |  | $ | 1.85 |
(1) | Approximately 39,000 options to purchase our common stock were excluded from this calculation because they were antidilutive for the year ended December 31, 2015.

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