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Condensed Consolidating Financial Information (Condensed Consolidating Statement of Operations) (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Revenues: |  |
Total revenues | $ 333,004 | $ 156,961
Costs and expenses: |  |
Lease operating expenses | 19,303 | 16,657
Production taxes | 3,906 | 3,111
Midstream gathering and processing | 47,941 | 37,652
Depreciation, depletion and amortization | 65,991 | 65,477
Impairment of oil and gas properties | 0 | 218,991
General and administrative | 12,600 | 10,620
Accretion expense | 282 | 247
Acquisition expense | 1,298 | 0
Total costs and expenses | 151,321 | 352,755
INCOME (LOSS) FROM OPERATIONS | 181,683 | (195,794)
OTHER (INCOME) EXPENSE: |  |
Interest expense | 23,479 | 16,023
Interest income | (842) | (94)
(Income) loss from equity method investments and investments in subsidiaries | 4,907 | 30,737
Other income | (316) | (2)
Total other (income) expense | 27,228 | 46,664
INCOME (LOSS) BEFORE INCOME TAXES | 154,455 | (242,458)
INCOME TAX EXPENSE | 0 | (191)
NET INCOME (LOSS) | 154,455 | (242,267)
Reportable Legal Entities | Parent |  |
Revenues: |  |
Total revenues | 272,441 | 156,751
Costs and expenses: |  |
Lease operating expenses | 17,449 | 16,472
Production taxes | 3,102 | 3,087
Midstream gathering and processing | 37,724 | 37,623
Depreciation, depletion and amortization | 65,990 | 65,476
Impairment of oil and gas properties |  | 218,991
General and administrative | 12,874 | 10,612
Accretion expense | 282 | 247
Acquisition expense | 0 |
Total costs and expenses | 137,421 | 352,508
INCOME (LOSS) FROM OPERATIONS | 135,020 | (195,757)
OTHER (INCOME) EXPENSE: |  |
Interest expense | 25,048 | 16,022
Interest income | (842) | (94)
(Income) loss from equity method investments and investments in subsidiaries | (42,614) | 30,773
Other income | (1,027) | 0
Total other (income) expense | (19,435) | 46,701
INCOME (LOSS) BEFORE INCOME TAXES | 154,455 | (242,458)
INCOME TAX EXPENSE | 0 | (191)
NET INCOME (LOSS) | 154,455 | (242,267)
Reportable Legal Entities | Guarantors |  |
Revenues: |  |
Total revenues | 60,563 | 210
Costs and expenses: |  |
Lease operating expenses | 1,854 | 185
Production taxes | 804 | 24
Midstream gathering and processing | 10,217 | 29
Depreciation, depletion and amortization | 1 | 1
Impairment of oil and gas properties |  | 0
General and administrative | (275) | 6
Accretion expense | 0 | 0
Acquisition expense | 1,298 |
Total costs and expenses | 13,899 | 245
INCOME (LOSS) FROM OPERATIONS | 46,664 | (35)
OTHER (INCOME) EXPENSE: |  |
Interest expense | (1,569) | 1
Interest income | 0 | 0
(Income) loss from equity method investments and investments in subsidiaries | 2,541 | 0
Other income | (189) | (2)
Total other (income) expense | 783 | (1)
INCOME (LOSS) BEFORE INCOME TAXES | 45,881 | (34)
INCOME TAX EXPENSE | 0 |
NET INCOME (LOSS) | 45,881 | (34)
Reportable Legal Entities | Non-Guarantor |  |
Revenues: |  |
Total revenues | 0 | 0
Costs and expenses: |  |
Lease operating expenses | 0 | 0
Production taxes | 0 | 0
Midstream gathering and processing | 0 | 0
Depreciation, depletion and amortization | 0 | 0
Impairment of oil and gas properties |  | 0
General and administrative | 1 | 2
Accretion expense | 0 | 0
Acquisition expense | 0 |
Total costs and expenses | 1 | 2
INCOME (LOSS) FROM OPERATIONS | (1) | (2)
OTHER (INCOME) EXPENSE: |  |
Interest expense | 0 | 0
Interest income | 0 | 0
(Income) loss from equity method investments and investments in subsidiaries | 365 | 23,685
Other income | 0 | 0
Total other (income) expense | 365 | 23,685
INCOME (LOSS) BEFORE INCOME TAXES | (366) | (23,687)
INCOME TAX EXPENSE | 0 |
NET INCOME (LOSS) | (366) | (23,687)
Eliminations |  |
Revenues: |  |
Total revenues | 0 | 0
Costs and expenses: |  |
Lease operating expenses | 0 | 0
Production taxes | 0 | 0
Midstream gathering and processing | 0 | 0
Depreciation, depletion and amortization | 0 | 0
Impairment of oil and gas properties |  | 0
General and administrative | 0 | 0
Accretion expense | 0 | 0
Acquisition expense | 0 |
Total costs and expenses | 0 | 0
INCOME (LOSS) FROM OPERATIONS | 0 | 0
OTHER (INCOME) EXPENSE: |  |
Interest expense | 0 | 0
Interest income | 0 | 0
(Income) loss from equity method investments and investments in subsidiaries | 44,615 | (23,721)
Other income | 900 | 0
Total other (income) expense | 45,515 | (23,721)
INCOME (LOSS) BEFORE INCOME TAXES | (45,515) | 23,721
INCOME TAX EXPENSE | 0 |
NET INCOME (LOSS) | $ (45,515) | $ 23,721

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