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CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 124,571 | $ 99,557
Accounts receivable—oil and natural gas sales | 157,391 | 146,773
Accounts receivable—joint interest and other | 39,511 | 35,440
Accounts receivable—related parties | 79 | 0
Prepaid expenses and other current assets | 9,742 | 4,912
Short-term derivative instruments | 19,809 | 78,847
Total current assets | 351,103 | 365,529
Property and equipment: |  |
Oil and natural gas properties, full-cost accounting, $2,925,145 and $2,912,974 excluded from amortization in 2018 and 2017, respectively | 9,936,714 | 9,169,156
Other property and equipment | 92,388 | 86,754
Accumulated depletion, depreciation, amortization and impairment | (4,506,306) | (4,153,733)
Property and equipment, net | 5,522,796 | 5,102,177
Other assets: |  |
Equity investments | 232,529 | 302,112
Long-term derivative instruments | 3,530 | 8,685
Deferred tax asset | 0 | 1,208
Inventories | 8,234 | 8,227
Other assets | 17,038 | 19,814
Total other assets | 261,331 | 340,046
Total assets | 6,135,230 | 5,807,752
Current liabilities: |  |
Accounts payable and accrued liabilities | 582,464 | 553,609
Asset retirement obligation—current | 120 | 120
Short-term derivative instruments | 62,601 | 32,534
Current maturities of long-term debt | 647 | 622
Total current liabilities | 645,832 | 586,885
Long-term derivative instruments | 15,101 | 2,989
Asset retirement obligation—long-term | 78,411 | 74,980
Deferred tax liability | 3,046 | 0
Other non-current liabilities | 0 | 2,963
Long-term debt, net of current maturities | 2,100,825 | 2,038,321
Total liabilities | 2,843,215 | 2,706,138
Commitments and contingencies (Note 9) |  |
Preferred stock, $.01 par value; 5,000,000 authorized, 30,000 authorized as redeemable 12% cumulative preferred stock, Series A; 0 issued and outstanding | 0 | 0
Stockholders’ equity: |  |
Common stock - $.01 par value, 200,000,000 authorized, 173,218,643 issued and outstanding at September 30, 2018 and 183,105,910 at December 31, 2017 | 1,732 | 1,831
Paid-in capital | 4,316,006 | 4,416,250
Accumulated other comprehensive loss | (46,354) | (40,539)
Retained deficit | (979,369) | (1,275,928)
Total stockholders’ equity | 3,292,015 | 3,101,614
Total liabilities and stockholders’ equity | 6,135,230 | 5,807,752
Eliminations |  |
Current assets: |  |
Cash and cash equivalents | 0 | 0
Accounts receivable—oil and natural gas sales | 0 | 0
Accounts receivable—joint interest and other | 0 | 0
Accounts receivable—related parties | 0 |
Prepaid expenses and other current assets | 0 | 0
Short-term derivative instruments | 0 | 0
Total current assets | (902,692) | (617,813)
Property and equipment: |  |
Oil and natural gas properties, full-cost accounting, $2,925,145 and $2,912,974 excluded from amortization in 2018 and 2017, respectively | (729) | (729)
Other property and equipment | 0 | 0
Accumulated depletion, depreciation, amortization and impairment | 0 | 0
Property and equipment, net | (729) | (729)
Other assets: |  |
Equity investments | (2,543,991) | (2,194,848)
Long-term derivative instruments | 0 | 0
Deferred tax asset |  | 0
Inventories | 0 | 0
Other assets | 0 | 0
Total other assets | (2,543,991) | (2,194,848)
Total assets | (3,447,412) | (2,813,390)
Current liabilities: |  |
Accounts payable and accrued liabilities | 0 | (1)
Asset retirement obligation—current | 0 | 0
Short-term derivative instruments | 0 | 0
Current maturities of long-term debt | 0 | 0
Total current liabilities | (902,692) | (617,814)
Long-term derivative instruments | 0 | 0
Asset retirement obligation—long-term | 0 | 0
Deferred tax liability | 0 |
Other non-current liabilities |  | 0
Long-term debt, net of current maturities | 0 | 0
Total liabilities | (902,692) | (617,814)
Stockholders’ equity: |  |
Common stock - $.01 par value, 200,000,000 authorized, 173,218,643 issued and outstanding at September 30, 2018 and 183,105,910 at December 31, 2017 | 0 | 0
Paid-in capital | (2,177,224) | (2,174,905)
Accumulated other comprehensive loss | 44,338 | 38,593
Retained deficit | (411,834) | (59,264)
Total stockholders’ equity | (2,544,720) | (2,195,576)
Total liabilities and stockholders’ equity | (3,447,412) | (2,813,390)
Guarantors | Reportable legal entities |  |
Current assets: |  |
Cash and cash equivalents | 35,357 | 31,649
Accounts receivable—oil and natural gas sales | 45,928 | 34,087
Accounts receivable—joint interest and other | 20,445 | 20,005
Accounts receivable—related parties | 0 |
Prepaid expenses and other current assets | 2,221 | 193
Short-term derivative instruments | 0 | 0
Total current assets | 344,324 | 149,308
Property and equipment: |  |
Oil and natural gas properties, full-cost accounting, $2,925,145 and $2,912,974 excluded from amortization in 2018 and 2017, respectively | 2,934,047 | 2,607,738
Other property and equipment | 751 | 43
Accumulated depletion, depreciation, amortization and impairment | (39) | (37)
Property and equipment, net | 2,934,759 | 2,607,744
Other assets: |  |
Equity investments |  | 77,744
Long-term derivative instruments | 0 | 0
Deferred tax asset |  | 0
Inventories | 1,434 | 2,411
Other assets | 4,020 | 7,331
Total other assets | 5,454 | 87,486
Total assets | 3,284,537 | 2,844,538
Current liabilities: |  |
Accounts payable and accrued liabilities | 118,038 | 137,361
Asset retirement obligation—current | 0 | 0
Short-term derivative instruments | 0 | 0
Current maturities of long-term debt | 0 | 0
Total current liabilities | 780,292 | 691,674
Long-term derivative instruments | 0 | 0
Asset retirement obligation—long-term | 12,777 | 11,839
Deferred tax liability | 0 |
Other non-current liabilities |  | 2,963
Long-term debt, net of current maturities | 0 | 0
Total liabilities | 793,069 | 706,476
Stockholders’ equity: |  |
Common stock - $.01 par value, 200,000,000 authorized, 173,218,643 issued and outstanding at September 30, 2018 and 183,105,910 at December 31, 2017 | 0 | 0
Paid-in capital | 1,915,598 | 1,915,598
Accumulated other comprehensive loss | 0 | 0
Retained deficit | 575,870 | 222,464
Total stockholders’ equity | 2,491,468 | 2,138,062
Total liabilities and stockholders’ equity | 3,284,537 | 2,844,538
Non-Guarantor | Reportable legal entities |  |
Current assets: |  |
Cash and cash equivalents | 0 | 0
Accounts receivable—oil and natural gas sales | 0 | 0
Accounts receivable—joint interest and other | 0 | 0
Accounts receivable—related parties | 0 |
Prepaid expenses and other current assets | 0 | 0
Short-term derivative instruments | 0 | 0
Total current assets | 0 | 0
Property and equipment: |  |
Oil and natural gas properties, full-cost accounting, $2,925,145 and $2,912,974 excluded from amortization in 2018 and 2017, respectively | 0 | 0
Other property and equipment | 0 | 0
Accumulated depletion, depreciation, amortization and impairment | 0 | 0
Property and equipment, net | 0 | 0
Other assets: |  |
Equity investments | 53,380 | 57,641
Long-term derivative instruments | 0 | 0
Deferred tax asset |  | 0
Inventories | 0 | 0
Other assets | 0 | 0
Total other assets | 53,380 | 57,641
Total assets | 53,380 | 57,641
Current liabilities: |  |
Accounts payable and accrued liabilities | 0 | 0
Asset retirement obligation—current | 0 | 0
Short-term derivative instruments | 0 | 0
Current maturities of long-term debt | 0 | 0
Total current liabilities | 128 | 127
Long-term derivative instruments | 0 | 0
Asset retirement obligation—long-term | 0 | 0
Deferred tax liability | 0 |
Other non-current liabilities |  | 0
Long-term debt, net of current maturities | 0 | 0
Total liabilities | 128 | 127
Stockholders’ equity: |  |
Common stock - $.01 par value, 200,000,000 authorized, 173,218,643 issued and outstanding at September 30, 2018 and 183,105,910 at December 31, 2017 | 0 | 0
Paid-in capital | 261,626 | 259,307
Accumulated other comprehensive loss | (44,338) | (38,593)
Retained deficit | (164,036) | (163,200)
Total stockholders’ equity | 53,252 | 57,514
Total liabilities and stockholders’ equity | 53,380 | 57,641
Parent | Reportable legal entities |  |
Current assets: |  |
Cash and cash equivalents | 89,214 | 67,908
Accounts receivable—oil and natural gas sales | 111,463 | 112,686
Accounts receivable—joint interest and other | 19,066 | 15,435
Accounts receivable—related parties | 79 |
Prepaid expenses and other current assets | 7,521 | 4,719
Short-term derivative instruments | 19,809 | 78,847
Total current assets | 909,471 | 834,034
Property and equipment: |  |
Oil and natural gas properties, full-cost accounting, $2,925,145 and $2,912,974 excluded from amortization in 2018 and 2017, respectively | 7,003,396 | 6,562,147
Other property and equipment | 91,637 | 86,711
Accumulated depletion, depreciation, amortization and impairment | (4,506,267) | (4,153,696)
Property and equipment, net | 2,588,766 | 2,495,162
Other assets: |  |
Equity investments | 2,723,140 | 2,361,575
Long-term derivative instruments | 3,530 | 8,685
Deferred tax asset |  | 1,208
Inventories | 6,800 | 5,816
Other assets | 13,018 | 12,483
Total other assets | 2,746,488 | 2,389,767
Total assets | 6,244,725 | 5,718,963
Current liabilities: |  |
Accounts payable and accrued liabilities | 464,426 | 416,249
Asset retirement obligation—current | 120 | 120
Short-term derivative instruments | 62,601 | 32,534
Current maturities of long-term debt | 647 | 622
Total current liabilities | 768,104 | 512,898
Long-term derivative instruments | 15,101 | 2,989
Asset retirement obligation—long-term | 65,634 | 63,141
Deferred tax liability | 3,046 |
Other non-current liabilities |  | 0
Long-term debt, net of current maturities | 2,100,825 | 2,038,321
Total liabilities | 2,952,710 | 2,617,349
Stockholders’ equity: |  |
Common stock - $.01 par value, 200,000,000 authorized, 173,218,643 issued and outstanding at September 30, 2018 and 183,105,910 at December 31, 2017 | 1,732 | 1,831
Paid-in capital | 4,316,006 | 4,416,250
Accumulated other comprehensive loss | (46,354) | (40,539)
Retained deficit | (979,369) | (1,275,928)
Total stockholders’ equity | 3,292,015 | 3,101,614
Total liabilities and stockholders’ equity | $ 6,244,725 | $ 5,718,963

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