Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

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,
	2020	2019	2018
Shell Trading Company	31%	10%	*
Valero Energy	23%	*	*
Rio Energy International, Inc.	*	26%	28%
Enterprise Crude Oil, LLC	*	19%	14%
Plains Marketing, L.P.	*	15%	21%

* - 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,
	2020	2019	2018
	(In thousands)
Interest paid, net of capitalized amounts	$91,269	$—	$—
Income taxes paid (1)	—	—	—
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$44,314	$3,414	$—
Investing cash flows from operating leases	24,234	32,529	—
Non-cash investing and financing activities:
Change in accrued capital expenditures	($64,465)	($31,475)	($52,757)
Change in asset retirement costs	8,605	13,559	8,730
Contingent consideration arrangement	—	8,512	—
ROU assets obtained in exchange for lease liabilities:
Operating leases	$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, 2020.