Williams Companies in Advanced Talks to Buy Momentum Midstream for $5.5 Billion

The Deal on the Table

Williams Companies is in advanced negotiations to acquire Momentum Midstream for approximately $5.5 billion, according to Bloomberg, which reported the talks on June 28, 2026. Reuters subsequently confirmed the discussions.

A formal announcement could come within roughly one week. No final agreement has been reached, and the deal could still collapse.

What Each Side Brings

Williams already operates a pipeline network of around 30,000 miles across the United States, making it one of the largest natural gas infrastructure companies in the country.

Momentum Midstream owns gathering and processing assets across key U.S. production basins. It is backed by private equity firm EnCap Flatrock Midstream, which retains the option to pull out if the negotiated terms fall short of acceptable.

That exit option gives EnCap Flatrock meaningful leverage. Williams wants the asset; the seller is not obligated to hand it over.

History Between These Two Companies

This would not be Williams's first transaction involving Momentum. In 2019, Williams paid $733 million for a 31% operated interest in Momentum's M4 Utica system.

A full acquisition at $5.5 billion would represent a dramatic step up from that earlier stake and would rank among the largest deals Williams has completed in its corporate history.

How Williams Would Pay for It

A $5.5 billion price tag requires serious capital. Williams would need to take on significant debt, issue new equity, or use some combination of both.

Debt-heavy financing puts pressure on the balance sheet. Equity issuance dilutes current shareholders. Neither path is painless, and the financing structure has not been disclosed.

No details on required regulatory approvals have been made public either. Any government review could extend the timeline well past the initial announcement date.

The Case for the Deal

U.S. natural gas demand is rising, both at home and through liquefied natural gas exports. Expanding gathering and processing capacity in active production basins positions Williams to capture more volume as production grows.

Momentum's infrastructure plugs directly into basins where that growth is happening. For a company whose revenue depends on moving gas through pipes, more pipes in the right places is a straightforward strategic argument.

The Case for Skepticism

The strongest concern is financial risk. At $5.5 billion, this is a large bet on a commodity-linked business, and midstream assets are not immune to downturns in production activity or prolonged shifts in energy prices.

EnCap Flatrock's ability to walk away also signals that the seller knows what the asset is worth and will not accept a lowball structure. Williams could end up paying a full price at a moment when financing costs are not cheap. Current shareholders watching a potential equity issuance have legitimate reason to pay attention to the final capital structure before drawing conclusions.

Large pipeline transactions often attract scrutiny from the Federal Energy Regulatory Commission and potentially the Department of Justice. No timeline for that review has been indicated.

What Comes Next

The unresolved question as of June 28, 2026, is straightforward: will EnCap Flatrock accept the terms Williams is offering, or will it exercise its option to retain Momentum?

If a deal is announced within the reported one-week window, attention will immediately shift to how Williams plans to finance $5.5 billion and which regulators will need to sign off before the transaction can close.