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Derivative Financial Instruments (Schedule Of Open Oil Derivative Positions) (Details) | 6 Months Ended
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Jun. 30, 2019 $ / bbl bbl
NYMEX West Texas Intermediate Price Swaps Oil Q3-Q4 2019 [Member] |
Derivative [Line Items] |
Volume Per Day (Bbls/d) | bbl | 41,100
Weighted Average Price Swap | 60.76
NYMEX West Texas Intermediate Price Swaps Oil Q1-Q4 2020 [Member] |
Derivative [Line Items] |
Volume Per Day (Bbls/d) | bbl | 3,238
Weighted Average Price Swap | 60.13
NYMEX West Texas Intermediate Price Collars Oil Q3-Q4 2019 [Member] |
Derivative [Line Items] |
Volume Per Day (Bbls/d) | bbl | 79,750
Weighted Average Floor Price | 54.89
Weighted Average Ceiling Price | 64.92
NYMEX West Texas Intermediate Price Collars Oil Q1-Q4 2020 [Member] |
Derivative [Line Items] |
Volume Per Day (Bbls/d) | bbl | 22,432
Weighted Average Floor Price | 52.92
Weighted Average Ceiling Price | 63.03
NYMEX West Texas Intermediate Three-Way Price Collars Oil Q3-Q4 2019 [Member] |
Derivative [Line Items] |
Volume Per Day (Bbls/d) | bbl | 5,000
Weighted Average Ceiling Price | 74.80
Weighted Average Floor Sold Price | 50.00
Weighted Average Floor Purchased Price | 63.00
Midland Sweet Basis Swaps Oil Q3-Q4 2019 [Member] |
Derivative [Line Items] |
Volume Per Day (Bbls/d) | bbl | 28,000
Weighted Average Differential To WTI | (0.46)
Argus LLS Basis Swaps Oil Q3-Q4 2019 [Member] |
Derivative [Line Items] |
Volume Per Day (Bbls/d) | bbl | 7,500
Weighted Average Differential To WTI | 5.18
Argus MEH Basis Swaps Oil Q3-Q4 2019 [Member] |
Derivative [Line Items] |
Volume Per Day (Bbls/d) | bbl | 26,000
Weighted Average Differential To WTI | 3.33
NYMEX Roll Basis Swaps Oil Q3-Q4 2019 [Member] |
Derivative [Line Items] |
Volume Per Day (Bbls/d) | bbl | 38,000
Weighted Average Differential To WTI | 0.45
Argus MEH Basis Swaps Oil Q1-Q4 2020 [Member] |
Derivative [Line Items] |
Volume Per Day (Bbls/d) | bbl | 9,000
Weighted Average Differential To WTI | 3.44
NYMEX Roll Basis Swaps Oil Q1-Q4 2020 [Member] |
Derivative [Line Items] |
Volume Per Day (Bbls/d) | bbl | 42,000
Weighted Average Differential To WTI | 0.32

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- Definition Derivative weighted average floor purchased price. + References No definition available. + Details
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- Definition Derivative weighted average floor sold price. + References No definition available. + Details
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- Definition The average cap rate on a group of price risk derivatives such as caps or collars. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract. + References No definition available. + Details
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- Definition The average floor rate on a group of price risk derivatives such as floors or collars. A payment or receipt is triggered if the market rate falls below the floor rate on the contract. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Nominal volume used to calculate payments on a derivative instrument. + References No definition available. + Details
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- Definition Average fixed price related to the group of price risk swap derivatives. + References No definition available. + Details
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