
	December 31, 2025
	Gross carrying amount		Accumulated amortization		Net
	(In thousands)
Favorable gas gathering contracts	$	21,063	$	(17,623)	$	3,440
Contract intangibles	146,900		(141,439)		5,461
Rights-of-way	209,022		(72,795)		136,227
Indefinite-lived intangibles	8,436		—		8,436
Total intangible assets	$	385,421	$	(231,857)	$	153,564


	December 31, 2024
	Gross carrying amount		Accumulated amortization		Net
	(In thousands)
Favorable gas gathering contracts	$	21,063	$	(16,685)	$	4,378
Contract intangibles	146,900		(134,885)		12,015
Rights-of-way	197,077		(67,627)		129,450
Indefinite-lived intangibles	8,436		—		8,436
Total intangible assets	$	373,476	$	(219,197)	$	154,279

The Company recognized amortization expense of its favorable gas gathering contracts in Other revenues as follows:


	Year ended December 31,
	2025		2024		2023
	(In thousands)
Amortization expense – favorable gas gathering contracts	$	938	$	938	$	938

The Company recognized amortization expense of its contract and right of way intangibles in costs and expenses as follows:


	Year ended December 31,
	2025		2024		2023
	(In thousands)
Amortization expense – contract intangibles	$	6,554	$	7,093	$	18,881
Amortization expense – rights-of-way	8,730		7,940		8,576

The Company’s estimated aggregate annual amortization expected to be recognized for each of the five succeeding fiscal years and thereafter, as of December 31, 2025, follows.


	(In thousands)
2026	$	14,967
2027	9,506
2028	9,338
2029	8,893
2030	8,233