Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net loss including non-controlling interests	$ (4,423,624)	$ (56,804)
Adjustments to reconcile net loss including non-controlling interests to net cash provided by operating activities:
Depreciation, depletion and amortization	236,885	367,191
Gain on extinguishment of debt	(83,887)	0
(Gain) loss on sale of properties	(10,179)	3,198
Impairment	4,825,997	653
Deferred income taxes	(257,315)	8,617
Derivative instruments	(248,135)	82,862
Equity-based compensation expenses	11,697	17,924
Deferred financing costs amortization and other	16,755	12,245
Working capital and other changes:
Change in accounts receivable, net	167,871	(12,914)
Change in inventory	(8,739)	3,029
Change in prepaid expenses	(7,465)	3,918
Change in accounts payable, interest payable and accrued liabilities	(156,668)	(36,514)
Change in other assets and liabilities, net	(3,298)	(4,473)
Net cash provided by operating activities	59,895	388,932
Cash flows from investing activities:
Capital expenditures	(270,283)	(525,501)
Acquisitions	0	(5,781)
Proceeds from sale of properties	13,780	0
Derivative settlements	144,069	3,629
Net cash used in investing activities	(112,434)	(527,653)
Cash flows from financing activities:
Proceeds from Revolving Credit Facilities	577,000	1,178,000
Principal payments on Revolving Credit Facilities	(383,000)	(1,025,000)
Repurchase of senior unsecured notes	(68,040)	0
Deferred financing costs	(102)	(482)
Purchases of treasury stock	(2,626)	(4,305)
Distributions to non-controlling interests	(12,042)	(10,093)
Payments on finance lease liabilities	(1,262)	(941)
Other	0	(390)
Net cash provided by financing activities	109,928	136,789
Increase (decrease) in cash and cash equivalents	57,389	(1,932)
Cash and cash equivalents:
Beginning of period	20,019	22,190
End of period	77,408	20,258
Supplemental non-cash transactions:
Change in accrued capital expenditures	(60,655)	(30,598)
Change in asset retirement obligations	$ 2,039	$ 3,840

Change In Capital Expenditures Incurred But Not Yet Paid

No definition available.

Name:	oas_ChangeInCapitalExpendituresIncurredButNotYetPaid
Namespace Prefix:	oas_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The total of the component of interest expense representing the noncash expenses charged against earnings in the period to amortize the long-term deferred financing costs and other income (expense) included in net income that results in no cash inflows or outflows in the period. Includes noncash adjustments to reconcile net income (loss) to cash provided by (used in) operating activities that are not separately disclosed.

+ References

No definition available.