Stock Markets June 28, 2026 02:48 PM

Williams Nears $5.5 Billion Deal to Buy Momentum Midstream

Deal would be the largest in Williams’ history and expand gas transport capacity to Gulf Coast export terminals

By Nina Shah
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Williams Cos. is reportedly in advanced talks to acquire Momentum Midstream for about $5.5 billion, a transaction that would be the largest in the Tulsa-based company’s history. The move would extend Williams’ pipeline reach beyond its current 30,000 miles and add routes from the Haynesville supply area to US Gulf Coast export facilities. Williams shares closed up modestly on the report, valuing the company at roughly $95 billion.

Williams Nears $5.5 Billion Deal to Buy Momentum Midstream
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Key Points

  • Williams is reportedly in advanced talks to buy Momentum Midstream for roughly $5.5 billion.
  • The deal would expand Williams’ pipeline network beyond its current 30,000 miles and add takeaway capacity from the Haynesville to Gulf Coast export terminals.
  • Williams shares rose 0.5 percent to $77.92 on Friday, implying a market value near $95 billion.

Williams Cos. is reportedly close to securing an agreement to acquire Momentum Midstream for about $5.5 billion, a purchase that would mark the largest transaction in the Tulsa, Oklahoma-based pipeline operator’s history. The target is currently owned by private equity firm EnCap Flatrock Midstream, which is understood to be in the process of selling the asset.

The proposed deal would expand Williams’ network beyond its presently reported 30,000 miles of infrastructure. Specifically, the acquisition would add capacity to move natural gas from production in the Haynesville fields of East Texas and Northern Louisiana to export terminals along the US Gulf Coast.

On markets, Williams shares finished marginally higher on the news, closing at $77.92 in New York trading on Friday, a rise of 0.5 percent. That closing price implies a market value for the company of about $95 billion.

EnCap Flatrock Midstream was formed in 2008 as a partnership between Flatrock Energy Advisors and EnCap Investments, according to information provided by the party that lists its founding partners. The transaction under discussion would transfer Momentum Midstream from that ownership group to Williams if completed on the terms currently reported.

The reported acquisition would increase Williams’ capacity to link Haynesville production to Gulf Coast export infrastructure, augmenting its transport options and physical footprint. The exact terms of any finalized agreement and the timeline for closing were not disclosed in the reports indicating advanced negotiations.


Market context and immediate reaction

  • Williams is pursuing a purchase valued at roughly $5.5 billion that would be its largest-ever deal.
  • The transaction would add new pipeline capacity from the Haynesville region to Gulf Coast export points, expanding Williams’ network beyond 30,000 miles.
  • Williams stock closed up 0.5 percent to $77.92 on Friday, implying a market capitalization of about $95 billion.

Deal specifics and current status

Reports indicate Williams is in advanced discussions to acquire Momentum Midstream from EnCap Flatrock Midstream. No definitive agreement, closing date, or further financial terms beyond the reported headline price have been disclosed in those reports.

This article reflects the information available in the reports describing the potential transaction and does not add further detail beyond those accounts.

Risks

  • No definitive agreement or closing timeline has been disclosed - transaction terms and completion remain uncertain, affecting energy and midstream sectors.
  • The reports do not provide further financial details beyond the headline price - valuations and integration costs for the combined assets are unclear, impacting investors in Williams and related energy firms.
  • Ownership transfer depends on negotiation outcomes with EnCap Flatrock Midstream - regulatory, contractual, or financing hurdles could affect the deal, with implications for natural gas transport capacity to Gulf Coast export terminals.

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