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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 2 Months Ended | 10 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 28, 2017 | Dec. 31, 2017 | Dec. 31, 2019 | Dec. 31, 2018
Cash flow from operating activities: |  |  |  |
Net (loss) income | $ (502,964) | $ (21,068) | $ 43,539 | $ 147,102
Adjustments to reconcile net (income) loss to net cash provided by (used in) operating activities: |  |  |  |
Depreciation, depletion and amortization | 28,149 | 68,478 | 106,006 | 86,271
Amortization of debt issuance costs | 416 | 1,988 | 5,059 | 5,430
Impairment of oil and gas properties | 0 | 0 | 51,081 | 0
Stock-based compensation expense | 0 | 1,851 | 8,647 | 6,750
Deferred income taxes | 9 | 1,888 | (36,778) | 43,946
Increase (decrease) in allowance for doubtful accounts | 0 | 970 | 153 | (20)
Other operating expenses (income) | (25) | (22,930) | 5,518 | (2,747)
Reorganization expenses, net (non-cash) | 501,872 | 0 | 0 | (25,523)
Derivatives activities: |  |  |  |
Total losses (gains) | (12,886) | 66,900 | 44,955 | (1,735)
Cash settlements on derivatives | 534 | 3,068 | 42,197 | (38,482)
Cash payments on early-terminated derivatives | 0 | 0 | 0 | (126,949)
Changes in assets and liabilities: |  |  |  |
(Increase) decrease in accounts receivable | (9,152) | (7,022) | (14,597) | (1,683)
(Increase) decrease in other assets | (2,842) | (13,175) | (5,136) | (819)
Increase (decrease) in accounts payable and accrued expenses | 18,330 | 6,619 | (917) | 19,526
(Decrease) increase in other liabilities | 990 | 19,832 | (7,898) | (5,596)
Net cash provided by operating activities | 22,431 | 107,399 | 241,829 | 105,471
Cash flow from investing activities: |  |  |  |
Development of oil and natural gas properties | (247) | (50,229) | (219,176) | (94,225)
Changes in capital investment accruals | (2,249) | (2,483) | 12,814 | (20,371)
Purchases of other property and equipment | (662) | (12,767) | (16,792) | (15,056)
Acquisition of properties and equipment | 0 | (249,338) | (2,840) | 0
Proceeds from sale of property and equipment and other | 25 | 234,292 | 969 | 8,212
Net cash (used in) investing activities | (3,133) | (80,525) | (225,025) | (121,440)
Cash flow from financing activities: |  |  |  |
Dividends paid on common stock | 0 | 0 | (39,157) | (7,365)
Purchase of treasury stock | 0 | 0 | (46,909) | (23,351)
Shares withheld for payment of taxes on equity awards | 0 | 0 | (1,268) | (3,699)
Issuance of 2026 Senior Unsecured Notes | 0 | 0 | 0 | 400,000
Debt issuance costs | 0 | (22,170) | 0 | (9,193)
IPO proceeds net of issuance costs | 0 | 0 | 0 | 133,805
Repurchase of common stock | 0 | 0 | 0 | (23,712)
Payment to preferred stockholders in conversion | 0 | 0 | 0 | (60,273)
Dividends paid on Series A preferred stock | 0 | 0 | 0 | (11,301)
Proceeds from sale of Series A Preferred Stock | 335,000 | 0 | 0 | 0
Net cash (used in) provided by financing activities | (162,668) | (43,170) | (85,484) | 15,911
Net decrease in cash and cash equivalents | (143,370) | (16,296) | (68,680) | (58)
Cash, cash equivalents and restricted cash: |  |  |  |
Beginning | 228,404 | 85,034 | 68,680 | 68,738
Ending | 85,034 | 68,738 | 0 | 68,680
RBL Facility |  |  |  |
Cash flow from financing activities: |  |  |  |
Borrowings under credit facility | 0 | 402,285 | 355,132 | 203,510
Repayments on credit facility | 0 | (23,285) | (353,282) | (582,510)
Emergence Credit Facility |  |  |  |
Cash flow from financing activities: |  |  |  |
Borrowings under credit facility | 0 | 51,000 | 0 | 0
Repayments on credit facility | 0 | (451,000) | 0 | 0
Pre-Emergence Credit Facility |  |  |  |
Cash flow from financing activities: |  |  |  |
Repayments on credit facility | $ (497,668) | $ 0 | $ 0 | $ 0

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- Definition The cash outflow to purchase long lived physical asset for use in the normal oil and gas operations and to purchase mineral interests in oil and gas properties not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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- Definition Amount of cash outflow from the acquisition of or improvements to long-lived, physical assets used to produce goods and services and not intended for resale, classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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- Definition The cash outflow for exploration and development of oil and gas properties. It includes cash payments related to development of oil and gas wells drilled at previously untested geologic structures (to determine the presence of oil or gas) and wells drilled at sites where the presence of oil or gas has already been established (to extract the oil or gas). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3213-108585 + Details
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- Definition The cash inflow associated with the amount received from entity's first offering of stock to the public. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition The cash inflow from issuance of preferred stocks identified as being convertible into another form of financial instrument, typically the entity's common stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition The cash inflow from the issuance of long-term debt that is not secured by collateral. Excludes proceeds from tax exempt unsecured debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3255-108585 + Details
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- Definition Amount of cash inflow for the sale of long-lived, physical assets used to produce goods and services and not intended for resale, classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(5)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
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- Definition The cash outflow for the settlement of obligation drawn from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with maturities due beyond one year or the operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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