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Natural Gas and Oil Properties (Tables)
 6 Months Ended
Jun. 30, 2021
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:
June 30, 2021June 30, 2020
Natural gas (per MMBtu)
$2.43 $2.07 
Oil (per Bbl)
$49.78 $47.17 
NGLs (per Bbl)
$17.06 $8.87