DERIVATIVES - Open Derivative Positions (Details) bbl in Thousands, MMBTU in Thousands	9 Months Ended
	Sep. 30, 2020 MMBTU $ / bbl $ / MMBTU bbl
OIL | 2020 | WTI Cushing | Swaps
Derivative [Line Items]
Volume (Bbls) | bbl	1
Weighted average differential (per Bbl)	0
Fixed Price Swap (per Bbl/MMBtu)	27.45
OIL | 2020 | WTI Cushing | Basis Swaps
Derivative [Line Items]
Volume (Bbls) | bbl	4
Weighted average differential (per Bbl)	(2.60)
Fixed Price Swap (per Bbl/MMBtu)	0
OIL | 2020 | WTI Cushing | Collars
Derivative [Line Items]
Volume (Bbls) | bbl	14
Floor price (per Bbl)	28.86
Ceiling price (per Bbl)	32.33
Strike price (USD per bbl)	45.00
Premium (USD per bbl)	1.89
OIL | 2020 | WTI Cushing | Calls
Derivative [Line Items]
Volume (Bbls) | bbl	8
Strike price (USD per bbl)	45.00
OIL | 2021 | WTI Cushing | Collars
Derivative [Line Items]
Volume (Bbls) | bbl	10
Floor price (per Bbl)	30.00
Ceiling price (per Bbl)	43.05
NATURAL GAS | 2020 | Waha Hub | Basis Swaps
Derivative [Line Items]
Volume, energy measure (MMBtu) | MMBTU	25
Weighted average differential (per Bbl) | $ / MMBTU	(2.07)
Fixed Price Swap (per Bbl/MMBtu) | $ / MMBTU	0