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Intangible Assets
3 Months Ended
Jun. 30, 2025
Intangible Assets, Net (Excluding Goodwill) [Abstract]  
Intangible Assets Intangible Assets
Our intangible assets consist of the following at the dates indicated:
June 30, 2025March 31, 2025
DescriptionWeighted-
Average
Remaining
Useful Life
Gross Carrying
Amount
Accumulated
Amortization
NetGross Carrying
Amount
Accumulated
Amortization
Net
(in years)(in thousands)
Customer relationships17.7$857,903 $(274,725)$583,178 $857,903 $(264,675)$593,228 
Customer commitments19.0192,000 (46,080)145,920 192,000 (44,160)147,840 
Rights-of-way and easements28.4100,181 (22,563)77,618 99,964 (21,645)78,319 
Debt issuance costs (1)
3.722,146 (5,883)16,263 21,841 (4,748)17,093 
Executory contracts and other agreements22.720,971 (5,448)15,523 19,973 (5,106)14,867 
Total $1,193,201 $(354,699)$838,502 $1,191,681 $(340,334)$851,347 
(1)    Includes debt issuance costs related to the ABL Facility (as defined herein). Debt issuance costs related to the fixed-rate notes and Term Loan B (as defined herein) are reported as a reduction of the carrying amount of long-term debt.

Amounts in the table above do not include assets classified as either held for sale or discontinued operations within our March 31, 2025 consolidated balance sheet (see Note 16).
Amortization expense is as follows for the periods indicated:
Three Months Ended June 30,
Recorded In20252024
(in thousands)
Depreciation and amortization$13,168 $14,245 
Interest expense1,135 946 
Operating expenses62 62 
Total$14,365 $15,253 

Amounts in the table above do not include amortization expense related to our refined products and biodiesel businesses, as these amounts have been classified within discontinued operations within our unaudited condensed consolidated statements of operations (see Note 16).

The following table summarizes expected amortization of our intangible assets at June 30, 2025 (in thousands):
Year Ending March 31,
2026 (nine months)$42,940 
202756,936 
202854,568 
202951,655 
203044,324 
203143,595 
Thereafter544,484 
Total$838,502