Williams has announced a series of strategic transactions designed to advance its wellhead to water strategy and enhance its role in delivering reliable, low-carbon energy to global markets.
The company has signed definitive agreements to sell its minority interest in the South Mansfield upstream asset to JERA for 398 million euros, plus deferred monthly payments through 2029 based on a predefined development plan. GEP Haynesville II, LLC, which holds the majority interest, will also sell its stake in South Mansfield while continuing to operate and develop the asset under a Contract Operating Agreement, ensuring operational continuity. GEP will retain ownership and operation of its other Haynesville assets not involved in this transaction.
Following the sale, Williams will continue gathering natural gas volumes from South Mansfield and deliver them through its Louisiana Energy Gateway (LEG) system to downstream LNG markets. To support production growth, Williams will expand its gathering system, increasing the volume commitment to LEG from South Mansfield. The sale remains subject to customary closing conditions, including approval from the Committee on Foreign Investment in the United States, and is expected to close by the end of 2025.
In a separate move, Williams has entered a strategic partnership with Woodside Energy to invest in the Louisiana LNG project—a fully permitted LNG export facility located along the Calcasieu Ship Channel. Under this agreement, Williams will acquire an 80 per cent ownership stake and assume operatorship of Driftwood Pipeline LLC, which includes the construction of Line 200, a greenfield pipeline connecting the Louisiana LNG facility to several key systems, including Transco and LEG.
Williams will also take a 10 per cent ownership stake in Louisiana LNG LLC and has entered into a 1.5 million tonnes per annum (mtpa) LNG offtake obligation. Woodside will retain majority ownership of Louisiana LNG and a 20 per cent stake in Driftwood Pipeline LLC, maintaining alignment and continuity. The companies will leverage Williams’ Sequent Energy Management platform to supply feedgas for the LNG facility. Williams’ total investment in the pipeline and LNG infrastructure is expected to be around 1.9 billion euros.
“These transactions mark an important step forward in Williams’ wellhead to water strategy—integrating upstream, midstream, marketing, and LNG capabilities to deliver the cleanest, most reliable energy to global markets,” said Chad Zamarin, President and CEO of Williams. “We are thrilled to partner with Woodside and create a strategic relationship with JERA, and together, reinforce and strengthen our collective roles as trusted providers of low-carbon energy solutions that meet growing global demand.”
For more information visit www.williams.com
