Quarterly report pursuant to Section 13 or 15(d)

PROPERTY AND EQUIPMENT (Narrative) (Details)

v3.20.1
PROPERTY AND EQUIPMENT (Narrative) (Details)
3 Months Ended
Mar. 31, 2020
USD ($)
usd_per_mcf
Mar. 31, 2019
USD ($)
usd_per_mcf
Dec. 31, 2019
USD ($)
Property, Plant and Equipment [Abstract]      
Impairment of oil and natural gas properties $ 553,345,000 $ 0  
Capitalized general and administrative costs $ 5,400,000 $ 7,700,000  
Depletion per Mcfe of gas equivalent (usd per Mcfe) | usd_per_mcf 0.79 1.02  
Non-producing leasehold costs $ 1,608,640,000   $ 1,686,666,000
Non-producing leases, extension term 5 years