DERIVATIVES - Open Derivative Positions (Details)	3 Months Ended
	Mar. 31, 2020 MMBTU $ / bbl $ / MMBTU bbl
Oil Swaps - WTI Cushing
Derivative [Line Items]
Volume (Bbls) | bbl	275,000
Fixed Price Swap (per Bbl/MMBtu)	27.45
Oil Basis Swaps - WTI (Midland-Cushing)
Derivative [Line Items]
Volume (Bbls) | bbl	1,100,000
Fixed Price Swap (per Bbl/MMBtu)	(2.60)
Collars - WTI (Cushing) 2020
Derivative [Line Items]
Volume (Bbls) | bbl	3,850,000
Floor price (per Bbl)	28.86
Ceiling price (per Bbl)	32.33
Collars - WTI (Cushing) 2021
Derivative [Line Items]
Volume (Bbls) | bbl	3,650,000
Floor price (per Bbl)	30.00
Ceiling price (per Bbl)	43.05
Natural Gas Swaps Waha Hub 2020
Derivative [Line Items]
Volume, energy measure (MMBtu) | MMBTU	6,875,000
Fixed Price Swap (per Bbl/MMBtu) | $ / MMBTU	(2.07)