Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Schedule of Major Customers [Table Text Block]

The following major customers and entities under common control accounted for 10 percent or more of its total oil, gas, and NGL production revenue for at least one of the periods presented:



	For the Years Ended December 31,
	2019		2018		2017
Major customer #1⁽¹⁾	18	%	18	%	6	%
Major customer #2⁽¹⁾	14	%	5	%	1	%
Major customer #3 ⁽¹⁾	13	%	7	%	—	%
Major customer #4 ⁽¹⁾	9	%	10	%	10	%
Group #1 of entities under common control⁽²⁾	13	%	18	%	17	%
Group #2 of entities under common control ⁽²⁾	11	%	12	%	8	%

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⁽¹⁾	These major customers are purchasers of a portion of the Company’s production from its Midland Basin assets.

⁽²⁾

In the aggregate, these groups of entities under common control represented purchasers of more than 10 percent of total oil, gas, and NGL production revenue for at least one of the periods presented; however, no individual entity comprising either group was a purchaser of more than 10 percent of the Company’s total oil, gas, and NGL production revenue.