| Dec'18 | Sep'18 | Jun'18 | Mar'18 | Dec'17 | Sep'17 | Jun'17 | Mar'17 | Dec'16 | Sep'16 | Jun'16 | Mar'16 |
|---|---|---|---|---|---|---|---|---|---|---|---|
Cash flows from operating activities: | |||||||||||
Net income (loss) | |||||||||||
146,508 | -104,279 | -126,606 | -86,146 | 49,880 | 18,178 | 32,039 | -12,608 | -47,076 | 0 | 0 | 0 |
Adjustments to reconcile net income (loss) to net cash provided by operating activities: | |||||||||||
Depreciation, depletion and amortization | |||||||||||
296,685 | 262,154 | 239,132 | 201,627 | 168,250 | 132,167 | 99,336 | 86,085 | 81,757 | 0 | 0 | 0 |
Accretion of asset retirement obligations | |||||||||||
- | - | 0 | 776 | - | - | 0 | 459 | - | 0 | 0 | 0 |
Impairments of unproved properties | |||||||||||
10,504 | 15,150 | 16,037 | 21,658 | 20,834 | 0 | 0 | 0 | - | - | - | - |
Impairment of NLA Disposal Group | |||||||||||
214,274 | 0 | 0 | 0 | - | 0 | 0 | 0 | - | - | - | - |
Amortization of debt issuance cost | |||||||||||
3,098 | 2,797 | 2,719 | 2,390 | 2,575 | 2,099 | 1,528 | 1,200 | 479 | 0 | 0 | 0 |
Accretion of senior note discount | |||||||||||
132 | 253 | 342 | 440 | 342 | 0 | 0 | 0 | - | - | - | - |
(Gain) loss on derivative instruments | |||||||||||
35,393 | -320,135 | -284,065 | -127,144 | -55,483 | 19,042 | 63,000 | 1,274 | -26,771 | 0 | 0 | 0 |
Cash settlements on derivative instruments | |||||||||||
-113,637 | -86,555 | -49,630 | -18,046 | 1,517 | 5,802 | 170 | 619 | 4,975 | 0 | 0 | 0 |
Deferred income tax expense (benefit) | |||||||||||
41,193 | -87,490 | -117,649 | -89,656 | -39,831 | 14,253 | 21,088 | 6,011 | -5,575 | 0 | 0 | 0 |
Debt extinguishment benefit | |||||||||||
- | - | - | 0 | 11 | -1,298 | -1,298 | -1,298 | -1,667 | 0 | 0 | 0 |
Amortization of equity awards | |||||||||||
19,468 | 14,415 | 11,832 | 9,305 | 6,644 | 0 | 0 | 0 | - | - | - | - |
Consideration paid to customers, net of amortization | |||||||||||
1,817 | 0 | 0 | 0 | - | - | - | - | - | - | - | - |
Changes in operating assets and liabilities: | |||||||||||
Increase in accounts receivable | |||||||||||
8,206 | 38,239 | 52,842 | 62,376 | 56,828 | 49,065 | 34,731 | 19,813 | 16,300 | 0 | 0 | 0 |
Increase in prepaid expenses | |||||||||||
576 | -352 | -539 | 23 | 390 | 1,340 | 4,598 | 1,360 | 448 | 0 | 0 | 0 |
Increase in inventories | |||||||||||
1,056 | 0 | 0 | 0 | - | - | - | - | - | - | - | 0 |
(Decrease) increase in accounts payable and accrued liabilities | |||||||||||
33,678 | 59,464 | 65,328 | 47,771 | 69,555 | 15,705 | 8,075 | -9,714 | -27,150 | 0 | 0 | 0 |
Net cash flow provided by operating activities | |||||||||||
- | - | - | 367,522 | - | - | - | 53,150 | - | 0 | 0 | 0 |
Cash flows from investing activities: | |||||||||||
Acquisitions of oil and gas properties | |||||||||||
53,814 | 55,397 | 23,767 | 567,939 | 551,242 | 974,166 | 979,233 | 436,890 | 436,072 | 0 | 0 | 0 |
Acquisition post-closing adjustment receipts | |||||||||||
- | - | - | - | - | - | - | 0 | - | - | - | - |
Additions to oil and gas properties | |||||||||||
1,051,891 | 1,081,992 | 1,067,952 | 935,141 | 700,546 | 484,206 | 263,725 | 149,360 | 125,837 | 0 | 0 | 0 |
Additions to and acquisitions of other property and equipment | |||||||||||
83,597 | 63,876 | 34,780 | 27,334 | 15,959 | 12,503 | 8,765 | 4,636 | 5,403 | 0 | 0 | 0 |
Construction deposits | |||||||||||
- | - | - | 0 | - | - | - | - | - | - | - | - |
Proceeds from NLA Divestiture | |||||||||||
207,924 | 0 | 0 | 0 | - | - | - | - | - | - | - | - |
Acquisition deposits | |||||||||||
- | - | - | - | - | - | - | 0 | - | - | - | - |
Change in restricted cash | |||||||||||
- | - | - | - | - | - | - | - | - | 0 | 0 | 0 |
Net cash used in investing activities | |||||||||||
- | - | - | -1,334,446 | - | - | - | -588,447 | - | 0 | 0 | 0 |
Cash flows from financing activities: | |||||||||||
Advances on revolving credit facilities | |||||||||||
1,085,000 | 992,000 | 882,000 | 806,000 | 513,500 | 645,950 | 455,950 | 314,950 | 383,450 | 0 | 0 | 0 |
Payments on revolving credit facilities | |||||||||||
867,353 | 751,485 | 779,000 | 497,000 | 469,897 | 720,965 | 535,950 | 559,950 | 378,700 | 0 | 0 | 0 |
Debt issuance cost | |||||||||||
4,736 | 5,236 | 7,769 | 7,136 | 15,279 | 16,484 | 13,883 | 12,192 | 3,607 | 0 | 0 | 0 |
Termination of second lien | |||||||||||
- | - | - | - | - | - | - | - | 225 | 0 | 0 | 0 |
Proceeds from senior notes offering | |||||||||||
- | - | - | - | 494,744 | 0 | 0 | 0 | - | - | - | - |
Proceeds from the issuance of common stock | |||||||||||
- | - | - | - | 34,457 | 0 | 0 | 0 | - | - | - | - |
Cost incurred in conjunction with the issuance of stock | |||||||||||
- | - | - | - | - | 0 | 0 | 0 | - | - | - | - |
Repurchase of vested restricted stock | |||||||||||
- | - | 0 | 0 | - | - | - | - | - | - | - | - |
Predecessor contributions | |||||||||||
- | - | - | - | - | - | - | - | - | 0 | 0 | 0 |
Net cash provided by financing activities | |||||||||||
- | - | - | 880,733 | - | - | - | 613,724 | - | 0 | 0 | 0 |
Net change in cash, cash equivalents and restricted cash | |||||||||||
14,721 | -4,166 | 3,754 | -87,077 | -3,775 | 3,909 | 9,336 | 78,762 | -39,676 | 0 | 0 | 0 |