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Condensed Consolidating Financial Information (Tables) | 6 Months Ended
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Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Condensed Consolidating Balance Sheet | Condensed Consolidating Balance Sheet
| June 30, 2019 |  |  |  |  |  |  |  |
| Parent/ Issuer |  | Combined Guarantor Subsidiaries |  | Combined Non-Guarantor Subsidiaries |  | Intercompany Eliminations |  | Consolidated
| (In thousands, except share data) |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | 144 |  | $ | 13,868 |  | $ | 6,246 |  | $ | — |  | $ | 20,258
Accounts receivable, net | — |  | 390,094 |  | 6,010 |  | — |  | 396,104
Accounts receivable - affiliates | 585,473 |  | 79,516 |  | 80,088 |  | (745,077) |  | —
Inventory | — |  | 30,056 |  | — |  | — |  | 30,056
Prepaid expenses | 273 |  | 4,478 |  | 1,267 |  | — |  | 6,018
Derivative instruments | — |  | 19,089 |  | — |  | — |  | 19,089
Other current assets | — |  | 195 |  | — |  | — |  | 195
Total current assets | 585,890 |  | 537,296 |  | 93,611 |  | (745,077) |  | 471,720
Property, plant and equipment |  |  |  |  |  |  |  |  |
Oil and gas properties (successful efforts method) | — |  | 9,299,365 |  | — |  | (15,903) |  | 9,283,462
Other property and equipment | — |  | 241,456 |  | 1,060,379 |  | — |  | 1,301,835
Less: accumulated depreciation, depletion, amortization and impairment | — |  | (3,336,023) |  | (80,160) |  | — |  | (3,416,183)
Total property, plant and equipment, net | — |  | 6,204,798 |  | 980,219 |  | (15,903) |  | 7,169,114
Investments in and advances to subsidiaries | 4,886,462 |  | 367,275 |  | — |  | (5,253,737) |  | —
Derivative instruments | — |  | 5,636 |  | — |  | — |  | 5,636
Deferred income taxes | 243,866 |  | — |  | — |  | (243,866) |  | —
Long-term inventory | — |  | 13,286 |  | — |  | — |  | 13,286
Operating right-of-use assets | — |  | 16,412 |  | 3,642 |  | — |  | 20,054
Other assets | — |  | 27,093 |  | 3,385 |  | — |  | 30,478
Total assets | $ | 5,716,218 |  | $ | 7,171,796 |  | $ | 1,080,857 |  | $ | (6,258,583) |  | $ | 7,710,288
LIABILITIES AND STOCKHOLDERS’ EQUITY |  |  |  |  |  |  |  |  |
Current liabilities |  |  |  |  |  |  |  |  |
Accounts payable | $ | — |  | $ | 14,381 |  | $ | 774 |  | $ | — |  | $ | 15,155
Accounts payable - affiliates | 44,643 |  | 665,561 |  | 34,873 |  | (745,077) |  | —
Revenues and production taxes payable | — |  | 169,786 |  | 748 |  | — |  | 170,534
Accrued liabilities | 183 |  | 258,337 |  | 56,930 |  | — |  | 315,450
Accrued interest payable | 37,096 |  | 312 |  | 293 |  | — |  | 37,701
Derivative instruments | — |  | 4,445 |  | — |  | — |  | 4,445
Advances from joint interest partners | — |  | 4,076 |  | — |  | — |  | 4,076
Current operating lease liabilities | — |  | 5,786 |  | 2,051 |  | — |  | 7,837
Other current liabilities | — |  | 2,620 |  | 610 |  | — |  | 3,230
Total current liabilities | 81,922 |  | 1,125,304 |  | 96,279 |  | (745,077) |  | 558,428
Long-term debt | 1,957,524 |  | 531,000 |  | 408,000 |  | — |  | 2,896,524
Deferred income taxes | — |  | 552,538 |  | — |  | (243,866) |  | 308,672
Asset retirement obligations | — |  | 53,664 |  | 1,564 |  | — |  | 55,228
Operating lease liabilities | — |  | 16,424 |  | 1,597 |  | — |  | 18,021
Other liabilities | — |  | 6,404 |  | 553 |  | — |  | 6,957
Total liabilities | 2,039,446 |  | 2,285,334 |  | 507,993 |  | (988,943) |  | 3,843,830
Stockholders’ equity |  |  |  |  |  |  |  |  |
Oasis share of stockholders’ equity | 3,676,772 |  | 4,886,462 |  | 257,733 |  | (5,144,195) |  | 3,676,772
Non-controlling interests | — |  | — |  | 315,131 |  | (125,445) |  | 189,686
Total stockholders’ equity | 3,676,772 |  | 4,886,462 |  | 572,864 |  | (5,269,640) |  | 3,866,458
Total liabilities and stockholders’ equity | $ | 5,716,218 |  | $ | 7,171,796 |  | $ | 1,080,857 |  | $ | (6,258,583) |  | $ | 7,710,288
Condensed Consolidating Balance Sheet | Condensed Consolidating Balance Sheet
| December 31, 2018 |  |  |  |  |  |  |  |
| Parent/ Issuer |  | Combined Guarantor Subsidiaries |  | Combined Non-Guarantor Subsidiaries |  | Intercompany Eliminations |  | Consolidated
| (In thousands, except share data) |  |  |  |  |  |  |  |
ASSETS |  |  |  |  |  |  |  |  |
Current assets |  |  |  |  |  |  |  |  |
Cash and cash equivalents | $ | 179 |  | $ | 15,362 |  | $ | 6,649 |  | $ | — |  | $ | 22,190
Accounts receivable, net | — |  | 385,121 |  | 2,481 |  | — |  | 387,602
Accounts receivable - affiliates | 643,382 |  | 76,127 |  | 80,805 |  | (800,314) |  | —
Inventory | — |  | 33,106 |  | 22 |  | — |  | 33,128
Prepaid expenses | 373 |  | 9,206 |  | 1,418 |  | — |  | 10,997
Derivative instruments | — |  | 99,930 |  | — |  | — |  | 99,930
Intangible assets, net | — |  | 125 |  | — |  | — |  | 125
Other current assets | — |  | 183 |  | — |  | — |  | 183
Total current assets | 643,934 |  | 619,160 |  | 91,375 |  | (800,314) |  | 554,155
Property, plant and equipment |  |  |  |  |  |  |  |  |
Oil and gas properties (successful efforts method) | — |  | 8,923,291 |  | — |  | (11,102) |  | 8,912,189
Other property and equipment | — |  | 218,617 |  | 933,155 |  | — |  | 1,151,772
Less: accumulated depreciation, depletion, amortization and impairment | — |  | (2,974,122) |  | (62,730) |  | — |  | (3,036,852)
Total property, plant and equipment, net | — |  | 6,167,786 |  | 870,425 |  | (11,102) |  | 7,027,109
Investments in and advances to subsidiaries | 4,900,528 |  | 356,039 |  | — |  | (5,256,567) |  | —
Derivative instruments | — |  | 6,945 |  | — |  | — |  | 6,945
Deferred income taxes | 219,670 |  | — |  | — |  | (219,670) |  | —
Long-term inventory | — |  | 12,260 |  | — |  | — |  | 12,260
Other assets | — |  | 23,221 |  | 2,452 |  | — |  | 25,673
Total assets | $ | 5,764,132 |  | $ | 7,185,411 |  | $ | 964,252 |  | $ | (6,287,653) |  | $ | 7,626,142
LIABILITIES AND STOCKHOLDERS’ EQUITY |  |  |  |  |  |  |  |  |
Current liabilities |  |  |  |  |  |  |  |  |
Accounts payable | $ | — |  | $ | 18,567 |  | $ | 1,599 |  | $ | — |  | $ | 20,166
Accounts payable - affiliates | 43,113 |  | 724,187 |  | 33,014 |  | (800,314) |  | —
Revenues and production taxes payable | — |  | 216,114 |  | 581 |  | — |  | 216,695
Accrued liabilities | 71 |  | 273,923 |  | 57,657 |  | — |  | 331,651
Accrued interest payable | 37,096 |  | 502 |  | 442 |  | — |  | 38,040
Derivative instruments | — |  | 84 |  | — |  | — |  | 84
Advances from joint interest partners | — |  | 5,140 |  | — |  | — |  | 5,140
Total current liabilities | 80,280 |  | 1,238,517 |  | 93,293 |  | (800,314) |  | 611,776
Long-term debt | 1,949,276 |  | 468,000 |  | 318,000 |  | — |  | 2,735,276
Deferred income taxes | — |  | 519,725 |  | — |  | (219,670) |  | 300,055
Asset retirement obligations | — |  | 50,870 |  | 1,514 |  | — |  | 52,384
Derivative instruments | — |  | 20 |  | — |  | — |  | 20
Other liabilities | — |  | 7,751 |  | — |  | — |  | 7,751
Total liabilities | 2,029,556 |  | 2,284,883 |  | 412,807 |  | (1,019,984) |  | 3,707,262
Stockholders’ equity |  |  |  |  |  |  |  |  |
Oasis share of stockholders’ equity | 3,734,576 |  | 4,900,528 |  | 238,630 |  | (5,139,158) |  | 3,734,576
Non-controlling interests | — |  | — |  | 312,815 |  | (128,511) |  | 184,304
Total stockholders’ equity | 3,734,576 |  | 4,900,528 |  | 551,445 |  | (5,267,669) |  | 3,918,880
Total liabilities and stockholders’ equity | $ | 5,764,132 |  | $ | 7,185,411 |  | $ | 964,252 |  | $ | (6,287,653) |  | $ | 7,626,142
Condensed Consolidating Statement of Operations | Condensed Consolidating Statement of Operations
| Three Months Ended June 30, 2019 |  |  |  |  |  |  |  |
| Parent/ Issuer |  | Combined Guarantor Subsidiaries |  | Combined Non-Guarantor Subsidiaries |  | Intercompany Eliminations |  | Consolidated
| (In thousands) |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |
Oil and gas revenues | $ | — |  | $ | 357,004 |  | $ | — |  | $ | — |  | $ | 357,004
Purchased oil and gas sales | — |  | 109,389 |  | — |  | — |  | 109,389
Midstream revenues | — |  | 1,082 |  | 97,644 |  | (47,153) |  | 51,573
Well services revenues | — |  | 11,439 |  | — |  | — |  | 11,439
Total revenues | — |  | 478,914 |  | 97,644 |  | (47,153) |  | 529,405
Operating expenses |  |  |  |  |  |  |  |  |
Lease operating expenses | — |  | 69,362 |  | — |  | (13,134) |  | 56,228
Midstream expenses | — |  | 675 |  | 28,025 |  | (11,332) |  | 17,368
Well services expenses | — |  | 8,474 |  | — |  | — |  | 8,474
Marketing, transportation and gathering expenses | — |  | 38,574 |  | — |  | (10,086) |  | 28,488
Purchased oil and gas expenses | — |  | 109,662 |  | — |  | — |  | 109,662
Production taxes | — |  | 28,142 |  | — |  | — |  | 28,142
Depreciation, depletion and amortization | — |  | 173,754 |  | 8,562 |  | (4,958) |  | 177,358
Exploration expenses | — |  | 887 |  | — |  | — |  | 887
Impairment | — |  | 24 |  | — |  | — |  | 24
General and administrative expenses | 6,308 |  | 21,352 |  | 7,809 |  | (4,543) |  | 30,926
Total operating expenses | 6,308 |  | 450,906 |  | 44,396 |  | (44,053) |  | 457,557
Loss on sale of properties | — |  | (276) |  | — |  | — |  | (276)
Operating income (loss) | (6,308) |  | 27,732 |  | 53,248 |  | (3,100) |  | 71,572
Other income (expense) |  |  |  |  |  |  |  |  |
Equity in earnings of subsidiaries | 73,855 |  | 37,518 |  | — |  | (111,373) |  | —
Net gain on derivative instruments | — |  | 34,749 |  | — |  | — |  | 34,749
Interest expense, net of capitalized interest | (32,415) |  | (6,562) |  | (4,209) |  | — |  | (43,186)
Other income (expense) | 1 |  | 282 |  | (4) |  | — |  | 279
Total other income (expense), net | 41,441 |  | 65,987 |  | (4,213) |  | (111,373) |  | (8,158)
Income before income taxes | 35,133 |  | 93,719 |  | 49,035 |  | (114,473) |  | 63,414
Income tax benefit (expense) | 7,624 |  | (19,864) |  | — |  | — |  | (12,240)
Net income including non-controlling interests | 42,757 |  | 73,855 |  | 49,035 |  | (114,473) |  | 51,174
Less: Net income attributable to non-controlling interests | — |  | — |  | 22,837 |  | (14,420) |  | 8,417
Net income attributable to Oasis | $ | 42,757 |  | $ | 73,855 |  | $ | 26,198 |  | $ | (100,053) |  | $ | 42,757
Condensed Consolidating Statement of Operations | Condensed Consolidating Statement of Operations
| Three Months Ended June 30, 2018 |  |  |  |  |  |  |  |
| Parent/ Issuer |  | Combined Guarantor Subsidiaries |  | Combined Non-Guarantor Subsidiaries |  | Intercompany Eliminations |  | Consolidated
| (In thousands) |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |
Oil and gas revenues | $ | — |  | $ | 397,849 |  | $ | — |  | $ | — |  | $ | 397,849
Purchased oil and gas sales | — |  | 128,064 |  | — |  | — |  | 128,064
Midstream revenues | — |  | 917 |  | 66,558 |  | (38,133) |  | 29,342
Well services revenues | — |  | 18,496 |  | — |  | — |  | 18,496
Total revenues | — |  | 545,326 |  | 66,558 |  | (38,133) |  | 573,751
Operating expenses |  |  |  |  |  |  |  |  |
Lease operating expenses | — |  | 57,615 |  | — |  | (13,474) |  | 44,141
Midstream expenses | — |  | 780 |  | 16,334 |  | (9,426) |  | 7,688
Well services expenses | — |  | 13,560 |  | — |  | — |  | 13,560
Marketing, transportation and gathering expenses | — |  | 28,653 |  | — |  | (5,820) |  | 22,833
Purchased oil and gas expenses | — |  | 129,579 |  | — |  | — |  | 129,579
Production taxes | — |  | 34,026 |  | — |  | — |  | 34,026
Depreciation, depletion and amortization | — |  | 150,554 |  | 6,659 |  | (3,643) |  | 153,570
Exploration expenses | — |  | 617 |  | — |  | — |  | 617
Impairment | — |  | 384,135 |  | — |  | — |  | 384,135
General and administrative expenses | 7,496 |  | 17,954 |  | 5,897 |  | (3,117) |  | 28,230
Total operating expenses | 7,496 |  | 817,473 |  | 28,890 |  | (35,480) |  | 818,379
Gain on sale of properties | — |  | 1,954 |  | — |  | — |  | 1,954
Operating income (loss) | (7,496) |  | (270,193) |  | 37,668 |  | (2,653) |  | (242,674)
Other income (expense) |  |  |  |  |  |  |  |  |
Equity in earnings (loss) of subsidiaries | (278,014) |  | 30,929 |  | — |  | 247,085 |  | —
Net loss on derivative instruments | — |  | (120,285) |  | — |  | — |  | (120,285)
Interest expense, net of capitalized interest | (33,135) |  | (7,592) |  | (183) |  | — |  | (40,910)
Loss on extinguishment of debt | (13,651) |  | — |  | — |  | — |  | (13,651)
Other income | — |  | 218 |  | — |  | — |  | 218
Total other expense, net | (324,800) |  | (96,730) |  | (183) |  | 247,085 |  | (174,628)
Income (loss) before income taxes | (332,296) |  | (366,923) |  | 37,485 |  | 244,432 |  | (417,302)
Income tax benefit | 12,092 |  | 88,909 |  | — |  | — |  | 101,001
Net income (loss) including non-controlling interests | (320,204) |  | (278,014) |  | 37,485 |  | 244,432 |  | (316,301)
Less: Net income attributable to non-controlling interests | — |  | — |  | 25,042 |  | (21,139) |  | 3,903
Net income (loss) attributable to Oasis | $ | (320,204) |  | $ | (278,014) |  | $ | 12,443 |  | $ | 265,571 |  | $ | (320,204)
Condensed Consolidating Statement of Operations | Condensed Consolidating Statement of Operations
| Six Months Ended June 30, 2019 |  |  |  |  |  |  |  |
| Parent/ Issuer |  | Combined Guarantor Subsidiaries |  | Combined Non-Guarantor Subsidiaries |  | Intercompany Eliminations |  | Consolidated
| (In thousands) |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |
Oil and gas revenues | $ | — |  | $ | 725,786 |  | $ | — |  | $ | — |  | $ | 725,786
Purchased oil and gas sales | — |  | 257,860 |  | — |  | — |  | 257,860
Midstream revenues | — |  | 4,152 |  | 189,295 |  | (93,853) |  | 99,594
Well services revenues | — |  | 21,897 |  | — |  | — |  | 21,897
Total revenues | — |  | 1,009,695 |  | 189,295 |  | (93,853) |  | 1,105,137
Operating expenses |  |  |  |  |  |  |  |  |
Lease operating expenses | — |  | 141,147 |  | — |  | (26,475) |  | 114,672
Midstream expenses | — |  | 2,523 |  | 54,940 |  | (23,366) |  | 34,097
Well services expenses | — |  | 15,444 |  | — |  | — |  | 15,444
Marketing, transportation and gathering expenses | — |  | 83,811 |  | — |  | (20,373) |  | 63,438
Purchased oil and gas expenses | — |  | 259,566 |  | — |  | — |  | 259,566
Production taxes | — |  | 57,760 |  | — |  | — |  | 57,760
Depreciation, depletion and amortization | — |  | 359,823 |  | 17,491 |  | (10,123) |  | 367,191
Exploration expenses | — |  | 1,717 |  | — |  | — |  | 1,717
Impairment | — |  | 653 |  | — |  | — |  | 653
General and administrative expenses | 15,395 |  | 42,177 |  | 16,529 |  | (8,716) |  | 65,385
Total operating expenses | 15,395 |  | 964,621 |  | 88,960 |  | (89,053) |  | 979,923
Loss on sale of properties | — |  | (3,198) |  | — |  | — |  | (3,198)
Operating income (loss) | (15,395) |  | 41,876 |  | 100,335 |  | (4,800) |  | 122,016
Other income (expense) |  |  |  |  |  |  |  |  |
Equity in earnings (loss) of subsidiaries | (15,637) |  | 72,253 |  | — |  | (56,616) |  | —
Net loss on derivative instruments | — |  | (82,862) |  | — |  | — |  | (82,862)
Interest expense, net of capitalized interest | (65,291) |  | (14,406) |  | (7,957) |  | — |  | (87,654)
Other income (expense) | 1 |  | 236 |  | (4) |  | — |  | 233
Total other expense, net | (80,927) |  | (24,779) |  | (7,961) |  | (56,616) |  | (170,283)
Income (loss) before income taxes | (96,322) |  | 17,097 |  | 92,374 |  | (61,416) |  | (48,267)
Income tax benefit (expense) | 24,197 |  | (32,734) |  | — |  | — |  | (8,537)
Net income (loss) including non-controlling interests | (72,125) |  | (15,637) |  | 92,374 |  | (61,416) |  | (56,804)
Less: Net income attributable to non-controlling interests | — |  | — |  | 44,633 |  | (29,312) |  | 15,321
Net income (loss) attributable to Oasis | $ | (72,125) |  | $ | (15,637) |  | $ | 47,741 |  | $ | (32,104) |  | $ | (72,125)
Condensed Consolidating Statement of Operations | Condensed Consolidating Statement of Operations
| Six Months Ended June 30, 2018 |  |  |  |  |  |  |  |
| Parent/ Issuer |  | Combined Guarantor Subsidiaries |  | Combined Non-Guarantor Subsidiaries |  | Intercompany Eliminations |  | Consolidated
| (In thousands) |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |
Oil and gas revenues | $ | — |  | $ | 764,444 |  | $ | — |  | $ | — |  | $ | 764,444
Purchased oil and gas sales | — |  | 195,773 |  | — |  | — |  | 195,773
Midstream revenues | — |  | 2,067 |  | 127,979 |  | (72,782) |  | 57,264
Well services revenues | — |  | 30,082 |  | — |  | — |  | 30,082
Total revenues | — |  | 992,366 |  | 127,979 |  | (72,782) |  | 1,047,563
Operating expenses |  |  |  |  |  |  |  |  |
Lease operating expenses | — |  | 113,314 |  | — |  | (24,392) |  | 88,922
Midstream expenses | — |  | 1,526 |  | 33,450 |  | (19,303) |  | 15,673
Well services expenses | — |  | 20,947 |  | — |  | — |  | 20,947
Marketing, transportation and gathering expenses | — |  | 55,325 |  | — |  | (11,479) |  | 43,846
Purchased oil and gas expenses | — |  | 200,173 |  | — |  | — |  | 200,173
Production taxes | — |  | 65,026 |  | — |  | — |  | 65,026
Depreciation, depletion and amortization | — |  | 296,781 |  | 13,023 |  | (6,969) |  | 302,835
Exploration expenses | — |  | 1,386 |  | — |  | — |  | 1,386
Impairment | — |  | 384,228 |  | — |  | — |  | 384,228
General and administrative expenses | 14,728 |  | 35,632 |  | 12,047 |  | (6,237) |  | 56,170
Total operating expenses | 14,728 |  | 1,174,338 |  | 58,520 |  | (68,380) |  | 1,179,206
Gain on sale of properties | — |  | 1,954 |  | — |  | — |  | 1,954
Operating income (loss) | (14,728) |  | (180,018) |  | 69,459 |  | (4,402) |  | (129,689)
Other income (expense) |  |  |  |  |  |  |  |  |
Equity in earnings (loss) of subsidiaries | (245,850) |  | 57,587 |  | — |  | 188,263 |  | —
Net loss on derivative instruments | — |  | (191,401) |  | — |  | — |  | (191,401)
Interest expense, net of capitalized interest | (65,581) |  | (12,030) |  | (445) |  | — |  | (78,056)
Loss on extinguishment of debt | (13,651) |  | — |  | — |  | — |  | (13,651)
Other income | — |  | 35 |  | — |  | — |  | 35
Total other expense, net | (325,082) |  | (145,809) |  | (445) |  | 188,263 |  | (283,073)
Income (loss) before income taxes | (339,810) |  | (325,827) |  | 69,014 |  | 183,861 |  | (412,762)
Income tax benefit | 20,196 |  | 79,977 |  | — |  | — |  | 100,173
Net income (loss) including non-controlling interests | (319,614) |  | (245,850) |  | 69,014 |  | 183,861 |  | (312,589)
Less: Net income attributable to non-controlling interests | — |  | — |  | 46,616 |  | (39,591) |  | 7,025
Net income (loss) attributable to Oasis | $ | (319,614) |  | $ | (245,850) |  | $ | 22,398 |  | $ | 223,452 |  | $ | (319,614)
Condensed Consolidating Statement of Cash Flows | Condensed Consolidating Statement of Cash Flows
| Six Months Ended June 30, 2019 |  |  |  |  |  |  |  |
| Parent/ Issuer |  | Combined Guarantor Subsidiaries |  | Combined Non-Guarantor Subsidiaries |  | Intercompany Eliminations |  | Consolidated
| (In thousands) |  |  |  |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |  |  |  |  |
Net income (loss) including non-controlling interests | $ | (72,125) |  | $ | (15,637) |  | $ | 92,374 |  | $ | (61,416) |  | $ | (56,804)
Adjustments to reconcile net income (loss) including non-controlling interests to net cash provided by operating activities: |  |  |  |  |  |  |  |  |
Equity in earnings (loss) of subsidiaries | 15,637 |  | (72,253) |  | — |  | 56,616 |  | —
Depreciation, depletion and amortization | — |  | 359,823 |  | 17,491 |  | (10,123) |  | 367,191
Loss on sale of properties | — |  | 3,198 |  | — |  | — |  | 3,198
Impairment | — |  | 653 |  | — |  | — |  | 653
Deferred income taxes | (24,197) |  | 32,814 |  | — |  | — |  | 8,617
Derivative instruments | — |  | 82,862 |  | — |  | — |  | 82,862
Equity-based compensation expenses | 13,933 |  | 3,772 |  | 219 |  | — |  | 17,924
Deferred financing costs amortization and other | 8,246 |  | 3,582 |  | 417 |  | — |  | 12,245
Working capital and other changes: |  |  |  |  |  |  |  |  |
Change in accounts receivable, net | 57,909 |  | (13,500) |  | (2,086) |  | (55,237) |  | (12,914)
Change in inventory | — |  | 3,029 |  | — |  | — |  | 3,029
Change in prepaid expenses | 100 |  | 3,668 |  | 150 |  | — |  | 3,918
Change in accounts payable, interest payable and accrued liabilities | 1,643 |  | (97,321) |  | 3,927 |  | 55,237 |  | (36,514)
Change in other assets and liabilities, net | — |  | (4,074) |  | (399) |  | — |  | (4,473)
Net cash provided by operating activities | 1,146 |  | 290,616 |  | 112,093 |  | (14,923) |  | 388,932
Cash flows from investing activities: |  |  |  |  |  |  |  |  |
Capital expenditures | — |  | (394,675) |  | (130,826) |  | — |  | (525,501)
Acquisitions | — |  | (5,781) |  | — |  | — |  | (5,781)
Derivative settlements | — |  | 3,629 |  | — |  | — |  | 3,629
Net cash used in investing activities | — |  | (396,827) |  | (130,826) |  | — |  | (527,653)
Cash flows from financing activities: |  |  |  |  |  |  |  |  |
Proceeds from Revolving Credit Facilities | — |  | 1,083,000 |  | 95,000 |  | — |  | 1,178,000
Principal payments on Revolving Credit Facilities | — |  | (1,020,000) |  | (5,000) |  | — |  | (1,025,000)
Deferred financing costs | — |  | (42) |  | (440) |  | — |  | (482)
Purchases of treasury stock | (4,305) |  | — |  | — |  | — |  | (4,305)
Distributions to non-controlling interests | — |  | — |  | (43,581) |  | 33,488 |  | (10,093)
Investment in subsidiaries / capital contributions from parent | 3,124 |  | 42,642 |  | (27,201) |  | (18,565) |  | —
Other | — |  | (883) |  | (448) |  | — |  | (1,331)
Net cash provided by (used in) financing activities | (1,181) |  | 104,717 |  | 18,330 |  | 14,923 |  | 136,789
Decrease in cash and cash equivalents | (35) |  | (1,494) |  | (403) |  | — |  | (1,932)
Cash and cash equivalents at beginning of period | 179 |  | 15,362 |  | 6,649 |  | — |  | 22,190
Cash and cash equivalents at end of period | $ | 144 |  | $ | 13,868 |  | $ | 6,246 |  | $ | — |  | $ | 20,258
Condensed Consolidating Statement of Cash Flows | Condensed Consolidating Statement of Cash Flows
| Six Months Ended June 30, 2018 |  |  |  |  |  |  |  |
| Parent/ Issuer |  | Combined Guarantor Subsidiaries |  | Combined Non-Guarantor Subsidiaries |  | Intercompany Eliminations |  | Consolidated
| (In thousands) |  |  |  |  |  |  |  |
Cash flows from operating activities: |  |  |  |  |  |  |  |  |
Net income (loss) including non-controlling interests | $ | (319,614) |  | $ | (245,850) |  | $ | 69,014 |  | $ | 183,861 |  | $ | (312,589)
Adjustments to reconcile net income (loss) including non-controlling interests to net cash provided by operating activities: |  |  |  |  |  |  |  |  |
Equity in earnings (loss) of subsidiaries | 245,850 |  | (57,587) |  | — |  | (188,263) |  | —
Depreciation, depletion and amortization | — |  | 296,781 |  | 13,023 |  | (6,969) |  | 302,835
Loss on extinguishment of debt | 13,651 |  | — |  | — |  | — |  | 13,651
Gain on sale of properties | — |  | (1,954) |  | — |  | — |  | (1,954)
Impairment | — |  | 384,228 |  | — |  | — |  | 384,228
Deferred income taxes | (20,196) |  | (80,097) |  | — |  | — |  | (100,293)
Derivative instruments | — |  | 191,401 |  | — |  | — |  | 191,401
Equity-based compensation expenses | 13,340 |  | 624 |  | 166 |  | — |  | 14,130
Deferred financing costs amortization and other | 7,892 |  | 2,522 |  | 104 |  | — |  | 10,518
Working capital and other changes: |  |  |  |  |  |  |  |  |
Change in accounts receivable, net | 96,993 |  | (8,178) |  | 29,407 |  | (124,088) |  | (5,866)
Change in inventory | — |  | (4,629) |  | (92) |  | — |  | (4,721)
Change in prepaid expenses | 58 |  | 95 |  | 420 |  | — |  | 573
Change in accounts payable, interest payable and accrued liabilities | 3,335 |  | (90,679) |  | 4,105 |  | 124,088 |  | 40,849
Change in other assets and liabilities, net | — |  | (746) |  | — |  | — |  | (746)
Net cash provided by operating activities | 41,309 |  | 385,931 |  | 116,147 |  | (11,371) |  | 532,016
Cash flows from investing activities: |  |  |  |  |  |  |  |  |
Capital expenditures | — |  | (381,971) |  | (154,988) |  | — |  | (536,959)
Acquisitions | — |  | (524,255) |  | — |  | — |  | (524,255)
Proceeds from sale of properties | — |  | 2,236 |  | — |  | — |  | 2,236
Derivative settlements | — |  | (96,823) |  | — |  | — |  | (96,823)
Other | — |  | (933) |  | — |  | — |  | (933)
Net cash used in investing activities | — |  | (1,001,746) |  | (154,988) |  | — |  | (1,156,734)
Cash flows from financing activities: |  |  |  |  |  |  |  |  |
Proceeds from Revolving Credit Facilities | — |  | 1,820,000 |  | 113,000 |  | — |  | 1,933,000
Principal payments on Revolving Credit Facilities | — |  | (1,239,000) |  | (26,000) |  | — |  | (1,265,000)
Repurchase of senior unsecured notes | (423,143) |  | — |  | — |  | — |  | (423,143)
Proceeds from issuance of senior unsecured convertible notes | 400,000 |  | — |  | — |  | — |  | 400,000
Deferred financing costs | (6,524) |  | (266) |  | — |  | — |  | (6,790)
Purchases of treasury stock | (6,064) |  | — |  | — |  | — |  | (6,064)
Distributions to non-controlling interests | — |  | — |  | (55,757) |  | 48,911 |  | (6,846)
Investment in subsidiaries / capital contributions from parent | (5,619) |  | 33,695 |  | 9,464 |  | (37,540) |  | —
Other | 38 |  | (125) |  | — |  | — |  | (87)
Net cash provided by (used in) financing activities | (41,312) |  | 614,304 |  | 40,707 |  | 11,371 |  | 625,070
Increase (decrease) in cash and cash equivalents | (3) |  | (1,511) |  | 1,866 |  | — |  | 352
Cash and cash equivalents at beginning of period | 178 |  | 15,659 |  | 883 |  | — |  | 16,720
Cash and cash equivalents at end of period | $ | 175 |  | $ | 14,148 |  | $ | 2,749 |  | $ | — |  | $ | 17,072

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