Annual report pursuant to Section 13 and 15(d)

Condensed Consolidating Financial Information - Balance Sheets (Details)

v3.10.0.1
Condensed Consolidating Financial Information - Balance Sheets (Details) - USD ($)
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Current assets:        
Cash and cash equivalents $ 52,297,000 $ 99,557,000    
Accounts receivable—oil and natural gas sales 210,200,000 146,773,000    
Accounts receivable - joint interest and other 22,497,000 35,440,000    
Accounts receivable - intercompany 0 0    
Prepaid expenses and other current assets 10,607,000 4,912,000    
Short-term derivative instruments - asset 21,352,000 78,847,000    
Total current assets 316,953,000 365,529,000    
Property and equipment:        
Oil and natural gas properties, full-cost accounting 10,026,836,000 9,169,156,000    
Other property and equipment 92,667,000 86,754,000    
Accumulated depletion, depreciation, amortization and impairment (4,640,098,000) (4,153,733,000)    
Property and equipment, net 5,479,405,000 5,102,177,000    
Other assets:        
Equity investments and investments in subsidiaries 236,121,000 302,112,000    
Long-term derivative instruments 0 8,685,000    
Deferred tax asset 0 1,208,000    
Inventories 4,754,000 8,227,000    
Other assets 13,803,000 19,814,000    
Total other assets 254,678,000 340,046,000    
Total assets 6,051,036,000 5,807,752,000    
Current liabilities:        
Accounts payable and accrued liabilities 518,380,000 553,609,000    
Accounts payable - intercompany 0 0    
Asset retirement obligation—current 0 120,000    
Short-term derivative instruments 20,401,000 32,534,000    
Current maturities of long-term debt 651,000 622,000    
Total current liabilities 539,432,000 586,885,000    
Long-term derivative instruments 13,992,000 2,989,000    
Asset retirement obligation—long-term 79,952,000 74,980,000    
Deferred tax liability 3,127,000 0    
Other non-current liabilities 0 2,963,000    
Long-term debt, net of current maturities 2,086,765,000 2,038,321,000    
Total liabilities 2,723,268,000 2,706,138,000    
Stockholders’ equity:        
Common stock 1,630,000 1,831,000    
Paid-in capital 4,227,532,000 4,416,250,000    
Accumulated other comprehensive loss (56,026,000) (40,539,000)    
(Accumulated deficit) retained earnings (845,368,000) (1,275,928,000)    
Total stockholders’ equity 3,327,768,000 3,101,614,000 $ 2,183,892,000 $ 2,038,837,000
Total liabilities and stockholders’ equity 6,051,036,000 5,807,752,000    
Eliminations        
Current assets:        
Cash and cash equivalents 0 0    
Accounts receivable—oil and natural gas sales   0    
Accounts receivable - joint interest and other 0 0    
Accounts receivable - intercompany (991,097,000) (617,813,000)    
Prepaid expenses and other current assets 0 0    
Short-term derivative instruments - asset 0 0    
Total current assets (991,097,000) (617,813,000)    
Property and equipment:        
Oil and natural gas properties, full-cost accounting (729,000) (729,000)    
Other property and equipment 0 0    
Accumulated depletion, depreciation, amortization and impairment 0 0    
Property and equipment, net (729,000) (729,000)    
Other assets:        
Equity investments and investments in subsidiaries (2,665,126,000) (2,194,848,000)    
Long-term derivative instruments   0    
Deferred tax asset   0    
Inventories 0 0    
Other assets 1,000 0    
Total other assets (2,665,125,000) (2,194,848,000)    
Total assets (3,656,951,000) (2,813,390,000)    
Current liabilities:        
Accounts payable and accrued liabilities   (1,000)    
Accounts payable - intercompany (991,097,000) (617,813,000)    
Asset retirement obligation—current   0    
Short-term derivative instruments 0 0    
Current maturities of long-term debt 0 0    
Total current liabilities (991,097,000) (617,814,000)    
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 (991,097,000) (617,814,000)    
Stockholders’ equity:        
Common stock 0 0    
Paid-in capital (2,177,224,000) (2,174,905,000)    
Accumulated other comprehensive loss 53,783,000 38,593,000    
(Accumulated deficit) retained earnings (542,413,000) (59,264,000)    
Total stockholders’ equity (2,665,854,000) (2,195,576,000)    
Total liabilities and stockholders’ equity (3,656,951,000) (2,813,390,000)    
Parent        
Current assets:        
Cash and cash equivalents 25,585,000 67,908,000    
Accounts receivable—oil and natural gas sales 146,075,000 112,686,000    
Accounts receivable - joint interest and other 16,212,000 15,435,000    
Accounts receivable - intercompany 671,633,000 554,439,000    
Prepaid expenses and other current assets 8,433,000 4,719,000    
Short-term derivative instruments - asset 21,352,000 78,847,000    
Total current assets 889,290,000 834,034,000    
Property and equipment:        
Oil and natural gas properties, full-cost accounting 7,044,550,000 6,562,147,000    
Other property and equipment 91,916,000 86,711,000    
Accumulated depletion, depreciation, amortization and impairment (4,640,059,000) (4,153,696,000)    
Property and equipment, net 2,496,407,000 2,495,162,000    
Other assets:        
Equity investments and investments in subsidiaries 2,856,988,000 2,361,575,000    
Long-term derivative instruments   8,685,000    
Deferred tax asset   1,208,000    
Inventories 3,620,000 5,816,000    
Other assets 12,624,000 12,483,000    
Total other assets 2,873,232,000 2,389,767,000    
Total assets 6,258,929,000 5,718,963,000    
Current liabilities:        
Accounts payable and accrued liabilities 419,107,000 416,249,000    
Accounts payable - intercompany 320,259,000 63,373,000    
Asset retirement obligation—current   120,000    
Short-term derivative instruments 20,401,000 32,534,000    
Current maturities of long-term debt 651,000 622,000    
Total current liabilities 760,418,000 512,898,000    
Long-term derivative instruments 13,992,000 2,989,000    
Asset retirement obligation—long-term 66,859,000 63,141,000    
Deferred tax liability 3,127,000      
Other non-current liabilities   0    
Long-term debt, net of current maturities 2,086,765,000 2,038,321,000    
Total liabilities 2,931,161,000 2,617,349,000    
Stockholders’ equity:        
Common stock 1,630,000 1,831,000    
Paid-in capital 4,227,532,000 4,416,250,000    
Accumulated other comprehensive loss (56,026,000) (40,539,000)    
(Accumulated deficit) retained earnings (845,368,000) (1,275,928,000)    
Total stockholders’ equity 3,327,768,000 3,101,614,000    
Total liabilities and stockholders’ equity 6,258,929,000 5,718,963,000    
Guarantors        
Current assets:        
Cash and cash equivalents 26,711,000 31,649,000    
Accounts receivable—oil and natural gas sales 64,125,000 34,087,000    
Accounts receivable - joint interest and other 6,285,000 20,005,000    
Accounts receivable - intercompany 319,464,000 63,374,000    
Prepaid expenses and other current assets 2,174,000 193,000    
Short-term derivative instruments - asset 0 0    
Total current assets 418,759,000 149,308,000    
Property and equipment:        
Oil and natural gas properties, full-cost accounting 2,983,015,000 2,607,738,000    
Other property and equipment 751,000 43,000    
Accumulated depletion, depreciation, amortization and impairment (39,000) (37,000)    
Property and equipment, net 2,983,727,000 2,607,744,000    
Other assets:        
Equity investments and investments in subsidiaries 0 77,744,000    
Long-term derivative instruments   0    
Deferred tax asset   0    
Inventories 1,134,000 2,411,000    
Other assets 1,178,000 7,331,000    
Total other assets 2,312,000 87,486,000    
Total assets 3,404,798,000 2,844,538,000    
Current liabilities:        
Accounts payable and accrued liabilities 99,273,000 137,361,000    
Accounts payable - intercompany 670,708,000 554,313,000    
Asset retirement obligation—current   0    
Short-term derivative instruments 0 0    
Current maturities of long-term debt 0 0    
Total current liabilities 769,981,000 691,674,000    
Long-term derivative instruments 0 0    
Asset retirement obligation—long-term 13,093,000 11,839,000    
Deferred tax liability 0      
Other non-current liabilities   2,963,000    
Long-term debt, net of current maturities 0 0    
Total liabilities 783,074,000 706,476,000    
Stockholders’ equity:        
Common stock 0 0    
Paid-in capital 1,915,598,000 1,915,598,000    
Accumulated other comprehensive loss 0 0    
(Accumulated deficit) retained earnings 706,126,000 222,464,000    
Total stockholders’ equity 2,621,724,000 2,138,062,000    
Total liabilities and stockholders’ equity 3,404,798,000 2,844,538,000    
Non-Guarantor        
Current assets:        
Cash and cash equivalents 1,000 0    
Accounts receivable—oil and natural gas sales 0 0    
Accounts receivable - joint interest and other 0 0    
Accounts receivable - intercompany 0 0    
Prepaid expenses and other current assets 0 0    
Short-term derivative instruments - asset 0 0    
Total current assets 1,000      
Property and equipment:        
Oil and natural gas properties, full-cost accounting 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 and investments in subsidiaries 44,259,000 57,641,000    
Long-term derivative instruments   0    
Deferred tax asset   0    
Inventories 0 0    
Other assets 0 0    
Total other assets 44,259,000 57,641,000    
Total assets 44,260,000 57,641,000    
Current liabilities:        
Accounts payable and accrued liabilities 0 0    
Accounts payable - intercompany 130,000 127,000    
Asset retirement obligation—current   0    
Short-term derivative instruments 0 0    
Current maturities of long-term debt 0 0    
Total current liabilities 130,000 127,000    
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 130,000 127,000    
Stockholders’ equity:        
Common stock 0 0    
Paid-in capital 261,626,000 259,307,000    
Accumulated other comprehensive loss (53,783,000) (38,593,000)    
(Accumulated deficit) retained earnings (163,713,000) (163,200,000)    
Total stockholders’ equity 44,130,000 57,514,000    
Total liabilities and stockholders’ equity $ 44,260,000 $ 57,641,000