v3.10.0.1
Consolidated Statements of Cash Flows - USD ($)
$ in Thousands
6 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Cash Flows From Operating Activities    
Net loss $ (67,090) $ (90,784)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:    
Depreciation, depletion and amortization 54,966 80,581
Impairment of oil and natural gas properties   40,774
Change in fair value of derivative financial instruments 10,531 (10,470)
Accretion of asset retirement obligations 22,315 23,065
Amortization of debt issuance costs 11 6
Deferred rent 4,169 4,031
Provision for loss on accounts receivable   300
Stock-based compensation 5,617 3,722
Changes in operating assets and liabilities    
Accounts receivable (1,677) 27,404
Prepaid expenses and other assets (1,208) 11,134
Settlement of asset retirement obligations (34,717) (27,491)
Accounts payable, accrued liabilities and other 853 (50,738)
Net Cash Provided by (Used in) Operating Activities (6,230) 11,534
Cash Flows from Investing Activities    
Capital expenditures (31,954) (24,496)
Insurance payments received   41
Proceeds from the sale of other property and equipment 288 1,279
Net Cash Used in Investing Activities (31,666) (23,176)
Cash Flows from Financing Activities    
Payments on long-term debt (15,556) (728)
Other (235) (61)
Net Cash Used in Financing Activities (15,791) (789)
Net Decrease in Cash, Cash Equivalents and Restricted Cash (53,687) (12,431)
Cash, Cash Equivalents and Restricted Cash, beginning of period 183,833 223,288
Cash, Cash Equivalents and Restricted Cash, end of period $ 130,146 $ 210,857

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