Major Customer

12 Months Ended

Dec. 31, 2020

Risks and Uncertainties [Abstract]

Major Customers

Major Customers

Purchasers of the Company's oil, NGL and gas production that individually accounted for ten percent or more of the Company's oil and gas revenues in at least one of the three years ended December 31, 2020 are as follows:

	Year Ended December 31,
	2020		2019		2018
Sunoco Logistics Partners L.P.	36	%	33	%	28	%
Occidental Energy Marketing Inc.	18	%	20	%	17	%
Plains Marketing L.P.	14	%	13	%	15	%

The loss of any of these major purchasers, which primarily purchase the Company's oil production, could have a material adverse effect on the ability of the Company to produce and sell its oil production.

Purchasers of the Company's purchased oil and gas that individually accounted for ten percent or more of the Company's sales of purchased oil and gas in at least one of the three years ended December 31, 2020 are as follows:

	Year Ended December 31,
	2020		2019		2018
Occidental Energy Marketing Inc.	28	%	30	%	34	%

The loss of the above major purchaser of purchased oil and gas would not be expected to have an adverse effect on the ability of the Company to sell commodities it purchases from third parties.