Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Schedule of Major Customers

The Company had the following major customers that represented 10% or more of its total revenues for at least one of the periods presented:

	Years Ended December 31,
	2021	2020	2019
Shell Trading Company	20%	31%	10%
Trafigura Trading, LLC	15	*	*
Occidental Energy Marketing, Inc.	13	*	*
Valero Marketing and Supply Company	13	23	*
Rio Energy International, Inc.	*	*	26
Enterprise Crude Oil, LLC	*	*	19
Plains Marketing, L.P.	*	*	15

* - Less than 10% for the applicable year.

Non-Cash Investing and Supplemental Cash Flow Information

The following table sets forth supplemental cash flow information for the periods indicated:

	Years Ended December 31,
	2021	2020	2019
	(In thousands)
Interest paid, net of capitalized amounts	$85,042	$91,269	$—
Income taxes paid (1)	—	—	—
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$26,681	$44,314	$3,414
Investing cash flows from operating leases	18,598	24,234	32,529
Non-cash investing and financing activities:
Change in accrued capital expenditures	$63,444	($64,465)	($31,475)
Change in asset retirement costs	2,905	8,605	13,559
Contingent consideration arrangement	—	—	8,512
ROU assets obtained in exchange for lease liabilities:
Operating leases	$24,301	$8,070	$66,914
Financing leases	—	—	2,197

(1)    The Company did not pay any federal income tax for any of the years in the three year period ending December 31, 2021.