Derivatives (Summary Of Derivative Instruments Contracts) (Details)	Jun. 30, 2023 MMBTU $ / bbl $ / MMBTU bbl
Natural Gas Costless Collars [Member] | 2023 [Member]
Derivative [Line Items]
Contract total volume | MMBTU	480,000
Natural Gas Costless Collars [Member] | 2023 [Member] | Minimum [Member]
Derivative [Line Items]
Contract average price	3.34
Natural Gas Costless Collars [Member] | 2023 [Member] | Maximum [Member]
Derivative [Line Items]
Contract average price	6.21
Natural Gas Costless Collars [Member] | 2024 [Member]
Derivative [Line Items]
Contract total volume | MMBTU	1,025,000
Natural Gas Costless Collars [Member] | 2024 [Member] | Minimum [Member]
Derivative [Line Items]
Contract average price	3.77
Natural Gas Costless Collars [Member] | 2024 [Member] | Maximum [Member]
Derivative [Line Items]
Contract average price	6.18
Natural Gas Costless Collars [Member] | 2025 [Member]
Derivative [Line Items]
Contract total volume | MMBTU	270,000
Natural Gas Costless Collars [Member] | 2025 [Member] | Minimum [Member]
Derivative [Line Items]
Contract average price	3.25
Natural Gas Costless Collars [Member] | 2025 [Member] | Maximum [Member]
Derivative [Line Items]
Contract average price	5.25
Natural Gas Fixed Price Swaps [Member] | 2023 [Member]
Derivative [Line Items]
Contract total volume | MMBTU	1,000,000
Contract average price	3.24
Natural Gas Fixed Price Swaps [Member] | 2024 [Member]
Derivative [Line Items]
Contract total volume | MMBTU	780,000
Contract average price	3.33
Oil Costless Collars [Member] | 2023 [Member]
Derivative [Line Items]
Contract total volume | bbl	2,500
Oil Costless Collars [Member] | 2023 [Member] | Minimum [Member]
Derivative [Line Items]
Contract average price | $ / bbl	75.00
Oil Costless Collars [Member] | 2023 [Member] | Maximum [Member]
Derivative [Line Items]
Contract average price | $ / bbl	96.00
Oil Costless Collars [Member] | 2024 [Member]
Derivative [Line Items]
Contract total volume | bbl	23,450
Oil Costless Collars [Member] | 2024 [Member] | Minimum [Member]
Derivative [Line Items]
Contract average price | $ / bbl	64.11
Oil Costless Collars [Member] | 2024 [Member] | Maximum [Member]
Derivative [Line Items]
Contract average price | $ / bbl	76.28
Oil Fixed Price Swaps [Member] | 2023 [Member]
Derivative [Line Items]
Contract average price | $ / bbl	74.91
Contract total volume | bbl	33,250
Oil Fixed Price Swaps [Member] | 2024 [Member]
Derivative [Line Items]
Contract average price | $ / bbl	65.69
Contract total volume | bbl	10,200
Oil Fixed Price Swaps [Member] | 2025 [Member]
Derivative [Line Items]
Contract average price | $ / bbl	64.80
Contract total volume | bbl	4,800