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DERIVATIVE INSTRUMENTS (Schedule of Derivative Instruments) (Details) | 9 Months Ended
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Sep. 30, 2021 MMBTU $ / bbl $ / MMBTU bbl
NYMEX Henry Hub - Remaining 2021 |
Derivative [Line Items] |
Daily volume (in MMBtu) | 198,000
Weighted average price (in usd per MMBtu or Bbl) | $ / MMBTU | 2.85
NYMEX Henry Hub - 2022 |
Derivative [Line Items] |
Daily volume (in MMBtu) | 140,740
Weighted average price (in usd per MMBtu or Bbl) | $ / MMBTU | 2.88
NYMEX Henry Hub - 2022 | Short | Call Option |
Derivative [Line Items] |
Daily volume (in MMBtu) | 152,675
Weighted average price (in usd per MMBtu or Bbl) | $ / MMBTU | 2.90
NYMEX Henry Hub - 2023 |
Derivative [Line Items] |
Daily volume (in MMBtu) | 34,932
Weighted average price (in usd per MMBtu or Bbl) | $ / MMBTU | 3.24
NYMEX Henry Hub - 2023 | Short | Call Option |
Derivative [Line Items] |
Daily volume (in MMBtu) | 627,675
Weighted average price (in usd per MMBtu or Bbl) | $ / MMBTU | 2.90
NYMEX WTI - Remaining 2021 |
Derivative [Line Items] |
Daily Volume (Bbl/d) | bbl | 3,000
Weighted average price (in usd per MMBtu or Bbl) | $ / bbl | 57.67
NYMEX WTI - 2022 |
Derivative [Line Items] |
Daily Volume (Bbl/d) | bbl | 2,104
Weighted average price (in usd per MMBtu or Bbl) | $ / bbl | 66.23
Mont Belvieu C3 - Remaining 2021 |
Derivative [Line Items] |
Daily Volume (Bbl/d) | bbl | 3,100
Weighted average price (in usd per MMBtu or Bbl) | $ / bbl | 27.80
Mont Belvieu C3 - 2022 |
Derivative [Line Items] |
Daily Volume (Bbl/d) | bbl | 3,378
Weighted average price (in usd per MMBtu or Bbl) | $ / bbl | 35.09
NYMEX Henry Hub - Remaining 2021 Index1 |
Derivative [Line Items] |
Daily volume (in MMBtu) | 610,000
Weighted average floor price (in usd per MMBtu) | $ / MMBTU | 2.59
Weighted average ceiling price (in usd per MMBtu) | $ / bbl | 3.02
NYMEX Henry Hub Index 1 |
Derivative [Line Items] |
Daily volume (in MMBtu) | 406,747
Weighted average floor price (in usd per MMBtu) | $ / MMBTU | 2.58
Weighted average ceiling price (in usd per MMBtu) | $ / bbl | 2.91
NYMEX WTI 2022 Index 1 |
Derivative [Line Items] |
Daily volume (in MMBtu) | 1,500
Weighted average floor price (in usd per MMBtu) | $ / MMBTU | 55.00
Weighted average ceiling price (in usd per MMBtu) | $ / bbl | 60.00
Basis Swap, Rex Zone 3 - Remaining 2021 |
Derivative [Line Items] |
Daily volume (in MMBtu) | 83,152
Weighted average price (in usd per MMBtu or Bbl) | $ / MMBTU | (0.12)
Basis Swap, Rex Zone 3 - 2022 |
Derivative [Line Items] |
Daily volume (in MMBtu) | 24,658
Weighted average price (in usd per MMBtu or Bbl) | $ / bbl | (0.10)

X
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