Annual report pursuant to Section 13 and 15(d)

Supplemental Oil and Gas Reserve Information - Schedule of Standardized Measure of Discounted Future Net Cash Flows (Details) (Parenthetical)

v3.19.1
Supplemental Oil and Gas Reserve Information - Schedule of Standardized Measure of Discounted Future Net Cash Flows (Details) (Parenthetical)
12 Months Ended
Dec. 31, 2018
Oil and Gas Exploration and Production Industries Disclosures [Abstract]  
Annual discount percentage 10.00%