Derivatives (Summary Of Derivative Instruments Contracts) (Details)	Jun. 30, 2022 MMBTU $ / MMBTU $ / bbl bbl
Natural Gas Costless Collars [Member] | Remaining 2022 [Member]
Derivative [Line Items]
Contract total volume | MMBTU	370,000
Natural Gas Costless Collars [Member] | Remaining 2022 [Member] | Minimum [Member]
Derivative [Line Items]
Contract average price	4.21
Natural Gas Costless Collars [Member] | Remaining 2022 [Member] | Maximum [Member]
Derivative [Line Items]
Contract average price	6.65
Natural Gas Costless Collars [Member] | 2023 [Member]
Derivative [Line Items]
Contract total volume | MMBTU	890,000
Natural Gas Costless Collars [Member] | 2023 [Member] | Minimum [Member]
Derivative [Line Items]
Contract average price	4.49
Natural Gas Costless Collars [Member] | 2023 [Member] | Maximum [Member]
Derivative [Line Items]
Contract average price	8.10
Natural Gas Costless Collars [Member] | 2024 [Member]
Derivative [Line Items]
Contract total volume | MMBTU	60,000
Natural Gas Costless Collars [Member] | 2024 [Member] | Minimum [Member]
Derivative [Line Items]
Contract average price	3.00
Natural Gas Costless Collars [Member] | 2024 [Member] | Maximum [Member]
Derivative [Line Items]
Contract average price	4.70
Natural Gas Fixed Price Swaps [Member] | Remaining 2022 [Member]
Derivative [Line Items]
Contract total volume | MMBTU	810,000
Contract average price	3.00
Natural Gas Fixed Price Swaps [Member] | 2023 [Member]
Derivative [Line Items]
Contract total volume | MMBTU	2,100,000
Contract average price	3.24
Natural Gas Fixed Price Swaps [Member] | 2024 [Member]
Derivative [Line Items]
Contract total volume | MMBTU	380,000
Contract average price	3.41
Oil Costless Collars | 2023 [Member]
Derivative [Line Items]
Contract total volume | bbl	15,000
Oil Costless Collars | 2023 [Member] | Minimum [Member]
Derivative [Line Items]
Contract average price | $ / bbl	75.00
Oil Costless Collars | 2023 [Member] | Maximum [Member]
Derivative [Line Items]
Contract average price | $ / bbl	96.00
Oil Fixed Price Swaps [Member] | Remaining 2022 [Member]
Derivative [Line Items]
Contract average price | $ / bbl	45.48
Contract total volume | bbl	41,000
Oil Fixed Price Swaps [Member] | 2023 [Member]
Derivative [Line Items]
Contract average price | $ / bbl	62.11
Contract total volume | bbl	66,750
Oil Fixed Price Swaps [Member] | 2024 [Member]
Derivative [Line Items]
Contract average price | $ / bbl	73.35
Contract total volume | bbl	11,250