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Intangible Assets, Goodwill and Other Assets
 12 Months Ended
Dec. 31, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets, Goodwill and Other Assets Intangible Assets, Goodwill and Other Assets
Intangible Assets
The following table reflects the components of intangible assets being amortized at December 31, 2025 and 2024:
  December 31, 2025December 31, 2024
 Weighted
Amortization
Period in Years		Gross
Carrying
Amount		Accumulated
Amortization		Carrying
Value		Gross
Carrying
Amount		Accumulated
Amortization		Carrying
Value
Offshore pipeline contract intangible19$158,101 $86,678 $71,423 $158,101 $78,357 $79,744 
Other823,160 18,977 4,183 22,633 17,090 5,543 
Total$181,261 $105,655 $75,606 $180,734 $95,447 $85,287 

The offshore pipeline contract intangible relates to customer contracts surrounding certain transportation agreements with producers in the Lucius production area in Southeast Keathley Canyon, which support our SEKCO Pipeline.
We record amortization of our intangible assets based on the period over which the asset is expected to contribute to our future cash flows. All of our current intangible assets are being amortized on a straight-line basis. Amortization expense on intangible assets was $10.3 million, $10.4 million and $10.1 million for the years ended December 31, 2025, 2024 and 2023, respectively.
In the fourth quarter of 2024, we terminated an on-going project related to the integration of certain of our enterprise resource planning systems and we impaired the costs incurred to date. As a result, we recognized an impairment charge of $43.0 million for the year ended December 31, 2024 included within “Impairment expense” on the Consolidated Statement of Operations.
The following table reflects our estimated amortization expense for each of the five subsequent fiscal years:
 
20262027202820292030
Offshore pipeline contract intangibles$8,321 $8,321 $8,321 $8,321 $8,321 
Other1,635 1,060 355 294 203 
Total$9,956 $9,381 $8,676 $8,615 $8,524 
Goodwill
The carrying amount of goodwill in our onshore transportation and services segment was $302.0 million at December 31, 2025 and December 31, 2024. We have not recognized any impairment losses related to goodwill.
Other Assets
Other assets consisted of the following:
 December 31,
 20252024
Deferred marine charges, net (1)
$30,511 $28,492 
Unamortized debt issuance costs on senior secured credit facility (Note 11)
5,350 7,890 
Other deferred charges, net(2)
18,187 17,224 
Other assets, net of amortization$54,048 $53,606 
(1)    See discussion of deferred charges on marine transportation assets in the Summary of Accounting Policies (Note 2).
(2)    At December 31, 2025 and 2024, this includes $7.5 million and $5.2 million, respectively, of contract assets in accordance with ASC 606 (refer to Note 3).