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Natural Gas and Oil Properties (Tables)
 9 Months Ended
Sep. 30, 2020
Oil and Gas Exploration and Production Industries Disclosures [Abstract]  
Oil and Gas Exploration and Production Industries Disclosures Prices used to calculate the ceiling value of reserves were as follows:
September 30, 2020September 30, 2019
Natural gas (per MMBtu)
$1.97 $2.87 
Oil (per Bbl)
$43.40 $57.77 
NGLs (per Bbl)
$9.26 $12.59