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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020
Cash flows from operating activities: |  |
Net income (loss) | $ (54,252) | $ (165,950)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |
Depletion, depreciation and accretion | 32,729 | 48,167
Full cost ceiling impairment |  | 188,443
Stock-based compensation, net | 1,560 | 1,793
Unrealized loss (gain) on derivative contracts | 69,053 | (24,029)
Reorganization items, net |  | (6,440)
Loss (gain) on extinguishment of debt | (2,068) |
Accrued settlements on derivative contracts | 6,769 | 474
Other income (expense) | (229) | 280
Change in assets and liabilities: |  |
Accounts receivable | (8,432) | 16,270
Prepaids and other | 806 | 5,053
Accounts payable and accrued liabilities | 1,196 | (16,183)
Net cash provided by (used in) operating activities | 47,132 | 47,878
Cash flows from investing activities: |  |
Oil and natural gas capital expenditures | (47,204) | (96,483)
Proceeds received from sale of oil and natural gas properties | 947 | 3,500
Funds held in escrow and other | 9 | 480
Net cash provided by (used in) investing activities | (46,248) | (92,503)
Cash flows from financing activities: |  |
Proceeds from borrowings | 145,000 | 119,209
Repayments of borrowings | (148,021) | (83,000)
Equity issuance costs and other | (290) | (32)
Net cash provided by (used in) financing activities | (3,311) | 36,177
Net increase (decrease) in cash and cash equivalents | (2,427) | (8,448)
Cash and cash equivalents at beginning of period | 4,295 | 10,275
Cash and cash equivalents at end of period | 1,868 | 1,827
Supplemental cash flow information: |  |
Cash paid for reorganization items |  | 6,440
Disclosure of non-cash investing and financing activities: |  |
Asset retirement obligations | $ 836 | $ (70)

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