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Other Intangible Assets
 12 Months Ended
Dec. 31, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Other Intangible Assets Other Intangible Assets
Our identifiable intangible assets are as follows (in thousands):
As of December 31, 2025
As of December 31, 2024
Useful Life
Gross
Accumulated Amortization
Net
Gross
Accumulated Amortization
Net
Intangible assets subject to amortization:
Customer relationships
11.6 - 32.2 years
$
302,541 
$
(69,519)
$
233,022 
$
234,231 
$
(47,320)
$
186,911 
Rights-of-way assets
8 - 86.6 years
23,649 
(2,300)
21,349 
14,892 
(1,778)
13,114 
Favorable contract
4.8 years
4,775 
(1,312)
3,463 
4,775 
(307)
4,468 
Intangible assets not subject to amortization:
Rights-of-way assets
Indefinite
112,627 
112,627 
76,965 
76,965 
Total
$
443,592 
$
(73,131)
$
370,461 
$
330,863 
$
(49,405)
$
281,458 
Amortization of the rights-of-way assets and customer relationships intangibles assets was $23.7 million, $19.6 million and $18.7 million for the years ended December 31, 2025, 2024 and 2023, respectively, and is included in depreciation and amortization in the accompanying consolidated statements of income and comprehensive income. Amortization of the marketing contract was $4.2 million and $7.2 million during the years ended December 31, 2024 and 2023, respectively, with no amortization recorded during December 31, 2025, and is included as a reduction of net revenue in the accompanying consolidated statements of income and comprehensive income. This marketing contract intangible was transferred to Delek Holdings in conjunction with assignment agreement entered into on August 5, 2024; see Note 4 for additional information.
Amortization expense for the next five years is estimated to be as follows (in thousands):
2026
$
23,725 
2027
$
23,725 
2028
$
23,725 
2029
$
23,166 
2030
$
22,720