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Natural Gas Properties & Other Property and Equipment | 6 Months Ended
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Jun. 30, 2026
Property, Plant, and Equipment [Abstract] |
Natural Gas Properties & Other Property and Equipment | Note 4 - Natural Gas Properties & Other Property, Plant, and Equipment As of June 30, 2026 and December 31, 2025, accumulated depreciation, depletion, and amortization for developed natural gas properties was $895.1 million and $825.7 million, respectively. Depreciation, depletion, and amortization expense for developed natural gas properties was $35.9 million and $30.7 million for the three months ended June 30, 2026 and 2025, respectively, and $69.4 million and $62.5 million for the six months ended June 30, 2026 and 2025, respectively. As of June 30, 2026 and December 31, 2025, accumulated depreciation for midstream assets was $27.0 million and $23.8 million, respectively. Depreciation expense on midstream assets was $1.6 million for both the three months ended June 30, 2026 and 2025, and $3.3 million and $3.2 million for the six months ended June 30, 2026 and 2025, respectively. Other property, plant, and equipment consisted of the following:
(in thousands) | June 30, 2026 |  | December 31, 2025 |
Plant facility | $ | 928,987 |  |  | $ | 926,092 |  |
Carbon capture, utilization, and sequestration | 138,746 |  |  | 114,261 |  |
Buildings | 6,746 |  |  | 6,746 |  |
Furniture, fixtures, equipment, and vehicles | 26,446 |  |  | 27,643 |  |
Computer software | 8,637 |  |  | 8,461 |  |
Leasehold improvements | 1,685 |  |  | 1,685 |  |
Land | 127,766 |  |  | 8,090 |  |
Construction in process | 35,570 |  |  | 6,350 |  |
Total | 1,274,583 |  |  | 1,099,328 |  |
Accumulated depreciation | (178,467) |  |  | (154,916) |  |
Other property, plant, and equipment, net | $ | 1,096,116 |  |  | $ | 944,412 |  |
Depreciation expense for other property, plant, and equipment was $11.2 million and $11.1 million for the three months ended June 30, 2026 and 2025, respectively, and $24.4 million and $22.4 million for the six months ended June 30, 2026 and 2025, respectively. During the three months ended June 30, 2026 and 2025, the Company received proceeds on the sales of other properties of $0.3 million and $0.2 million, respectively and recognized a gain on sale of these properties of $0.3 million and $0.1 million, respectively. During the six months ended June 30, 2026 and 2025, the Company received proceeds on the sale of other properties of $0.5 million and $1.3 million, respectively, and recognized a gain on sale of these properties of $0.4 million and $1.2 million, respectively. The gain on sale of other property, plant, and equipment is included in other in the condensed consolidated statements of income. Impairment of Asset Held for Sale During the six months ended June 30, 2025, the Company classified its field office in Bridgeport, Texas as held for sale and recognized an impairment of $2.4 million based on an estimated selling price of $5.5 million, which was included in other within total revenues and other operating income in the condensed consolidated statements of income. The Company completed the sale of the field office in the third quarter of 2025 for proceeds of $5.5 million, resulting in no further gain or loss. During the three months ended June 30, 2026, the Company entered into an agreement with a third party to sell its CO 2 storage lease interests located in Liberty and Chambers Counties, Texas and classified these assets as held for sale within other current assets on the condensed consolidated balance sheets. The Company recognized an impairment on the assets of $3.5 million using an estimated selling price of $2.6 million, which was included in other within total revenues and other operating income in the condensed consolidated statements of income. Asset Retirement Obligations The following table summarizes the activities of the Company's asset retirement obligations:
|  | Three Months Ended June 30, |  | Six Months Ended June 30,
(in thousands) |  | 2026 |  | 2025 |  | 2026 |  | 2025
Balance, beginning of period |  | $ | 201,774 |  |  | $ | 204,186 |  |  | $ | 233,339 |  |  | $ | 201,158 |
Liabilities incurred |  | 69 |  |  | 45 |  |  | 109 |  |  | 80 |
Liabilities settled |  | (374) |  |  | (180) |  |  | (822) |  |  | (803) |
Revisions of estimates(1) |  | — |  |  | — |  |  | (35,172) |  |  | — |
Accretion of discount |  | 3,642 |  |  | 3,671 |  |  | 7,657 |  |  | 7,287 |
Balance, end of period |  | 205,111 |  |  | 207,722 |  |  | 205,111 |  |  | 207,722 |
Less current portion |  | (4,507) |  |  | (3,391) |  |  | (4,507) |  |  | (3,391) |
Asset retirement obligations, long-term |  | $ | 200,604 |  |  | $ | 204,331 |  |  | $ | 200,604 |  |  | $ | 204,331 |
___________________________________________________ (1) Revisions of estimates are due to reductions of expected plugging and abandonment cost per well for all Barnett operated properties.

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- Definition The entire disclosure for properties used in normal conduct of oil and gas exploration and producing operations. This disclosure may include property accounting policies and methodology, a schedule of property, plant and equipment gross, additions, deletions, transfers and other changes, depreciation, depletion and amortization expense, net, accumulated depreciation, depletion and amortization expense and useful lives. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 932 -SubTopic 360 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/932-360/tableOfContent + Details
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