Note 11 – Goodwill and Other Intangible Assets
Goodwill
Changes in the carrying amount of goodwill, included in Intangible assets – net in Williams’ Consolidated Balance Sheet, by reportable segment for the years indicated are as follows:
Transmission, Power & GulfWestTotal
(Millions)
December 31, 2023$400 $63 $463 
Cureton Acquisition (Note 3)
— 
RMM Acquisition (Note 3)
— (2)(2)
December 31, 2024400 66 466 
December 31, 2025$400 $66 $466 
Goodwill is not subject to amortization, but is evaluated at least annually for impairment or more frequently if impairment indicators are present. Williams did not identify or recognize any impairments to goodwill in connection with the evaluation of goodwill for impairment during the year ended December 31, 2025.
Other Intangible Assets
The gross carrying amount and accumulated amortization of other intangible assets, included in Intangible assets – net in Williams’ Consolidated Balance Sheet, at December 31 are as follows:
20252024
Gross Carrying AmountAccumulated AmortizationGross Carrying AmountAccumulated Amortization
(Millions)
Customer relationships$10,113 $(3,832)$10,239 $(3,523)
Transportation and storage capacity contracts267 (254)267 (244)
Other
(3)(2)
Other intangible assets
$10,386 $(4,089)$10,512 $(3,769)
Customer Relationships
Customer relationships primarily relate to gas gathering, processing, and fractionation contractual customer relationships recognized in acquisitions. Contractual customer relationships are being amortized on a straight-line basis over the term for which the contractual customer relationships are expected to contribute to cash flows.
Williams expenses costs incurred to renew or extend the terms of its gas gathering, processing, and fractionation contracts with customers. Although a significant portion of the expected future cash flows associated with these contractual customer relationships are dependent on the ability to renew or extend the arrangements beyond the initial contract periods, these expected future cash flows are significantly influenced by the scope and pace of Williams’ producer customers’ drilling programs. Once producer customers’ wells are connected to Williams’ gathering infrastructure, their likelihood of switching to another provider before the wells are abandoned is reduced due to the significant capital investment required.
The amortization expense related to customer relationships was $372 million, $368 million, and $360 million in 2025, 2024, and 2023, respectively. The estimated amortization expense for each of the next five succeeding fiscal years is $364 million, $360 million, $360 million, $360 million, and $359 million.
Transportation and Storage Capacity Contracts
Certain transportation and storage capacity contracts were recognized as intangible assets as part of the acquisition of Sequent in 2021. The amortization expense related to transportation and storage capacity contracts was $10 million, $21 million, and $51 million in 2025, 2024, and 2023, respectively. The estimated amortization expense for each of the next five succeeding fiscal years is $7 million, $4 million, $2 million, $0 million, and $0 million.

Historical Timeline

Fiscal YearFiled
2025Feb 24, 2026Showing above
2024Feb 25, 2025
2023Feb 21, 2024
2022Feb 27, 2023
2021Feb 28, 2022
2020Feb 24, 2021
2019Feb 24, 2020
2018Feb 21, 2019
2017Feb 22, 2018
2016Feb 22, 2017
2015Feb 26, 2016

About Goodwill & Intangibles Disclosures

Goodwill and intangible asset disclosures reveal the premium paid in acquisitions and how management assesses whether that premium retains its value. Since goodwill is no longer amortized under US GAAP, the annual impairment test is the only mechanism that adjusts carrying values downward — making the assumptions behind that test critically important for investors.

Key signals: a history of goodwill impairments suggests management consistently overpays for acquisitions. Watch the gap between reporting unit fair value and carrying amount — when fair value exceeds carrying amount by less than 10-20%, a small decline in business performance could trigger a write-down. For finite-lived intangibles, examine useful life assumptions across customer relationships, technology, and trade names; aggressive estimates inflate near-term earnings. Compare total intangibles-to-total-assets ratios against peers to assess acquisition dependency. Rising goodwill as a percentage of equity can signal balance sheet fragility.