Williams Companies Closes $5.5 Billion Momentum Midstream Acquisition, Expanding Haynesville Gathering to 6 Bcf/d for Gulf Coast LNG

Williams Companies (NYSE: WMB) closed its $5.5 billion acquisition of Momentum Midstream on September 3, 2026, extending its natural gas platform into the Haynesville Basin to serve Gulf Coast LNG, power, and industrial demand. The transaction comprised approximately $3.5 billion of cash and debt consideration plus roughly $2 billion of Williams equity, at an implied 8.5x multiple on projected 2027 EBITDA. The deal raised Williams' full-year 2026 adjusted EBITDA guidance midpoint by $200 million, to $8.4 billion. Pro-forma leverage sits at approximately 3.75x 2026 EBITDA including the acquired debt load.

Momentum Midstream's Haynesville platform adds more than 4,000 miles of pipeline and over one million dedicated acres to Williams' existing US infrastructure portfolio. The gathering system operates at 6 billion cubic feet per day (Bcf/d) of capacity, supported by multiple processing and treating facilities. Three take-or-pay pipelines provide 4.05 Bcf/d of transportation capacity, meaning volumes are contracted rather than spot-dependent. Chad Zamarin, Williams President and CEO, said: "With the acquisition now complete, Williams has established a premier Haynesville position that strengthens our ability to serve rapidly growing LNG, power and industrial demand along the Gulf Coast."

Two Expansion Projects Route Haynesville Gas to Gulf LNG Terminals

Williams announced two pipeline projects alongside the acquisition closing. The $1.5 billion Delta Access expansion will connect Haynesville supply to Gulf Coast LNG export terminals and power customers, with initial capacity of 2.25 Bcf/d and first gas targeted for Q1 2029. Delta Access feeds into Williams' existing Transco pipeline system, creating a direct path from Haynesville wells to Gulf Coast LNG export berths at Sabine Pass, Cameron, and Calcasieu Pass. The Shelby Trough Connector, a 64-mile lateral on the Louisiana Extension Gas system, will add 750 million cubic feet per day (MMcf/d) expandable to 1.5 Bcf/d, with first gas expected in Q2 2028.

Deriving the Value Behind the Pipeline Bet

Henry Hub natural gas settled at $2.91 per MMBtu on the NYMEX September 4, 2026 close, per CME Group data. European TTF natural gas settled at 73.67 euros per megawatt-hour on September 3, per ICE data, which at the September 4 EUR/USD rate of 1.161 equals $25.06 per MMBtu. That places the Henry Hub-to-TTF spread at $22.15 per MMBtu as of Friday's settlement. TTF is on pace for its fourth straight weekly gain, at its highest level since January 2023, driven by the Hormuz disruption that cut Qatari LNG flows this summer.

At Delta Access's full design capacity of 2.25 Bcf/d, the gross commodity spread between Haynesville supply and European gas benchmarks reaches $49.8 million per day at current price differentials. After liquefaction and shipping costs of $3 to $3.50 per MMBtu, the net margin available to Gulf LNG exporters is $42.5 million per day at midpoint cost estimates. Williams earns gathering and transportation fees from those flows rather than the full commodity spread. The take-or-pay commitments LNG buyers signed to anchor Delta Access reflect the current scale of that arbitrage opportunity.

Infrastructure Expands as Haynesville Rig Count Dips

The Haynesville Basin shed one drilling rig in the week ended September 5, 2026, per Oil Authority's Baker Hughes weekly rig count. The Marcellus Basin also lost one rig during the same period. Gas-directed producers are trimming short-cycle activity following recent Henry Hub price gains, a pattern consistent with capital discipline at $2.91 per MMBtu. Williams is building against a multi-year LNG demand thesis, and Momentum's take-or-pay contracts insulate Williams' cash flows from near-term drilling volatility.

Williams' Full Pipeline Footprint After Momentum

Williams now operates five distinct natural gas corridors across the continental United States. Transco, its flagship interstate pipeline, is the largest US gas pipeline by volume, running from the Gulf of Mexico to New York City. Northeast G&P gathers Appalachian production from the Marcellus and Utica shales. Northwest Pipeline serves Pacific Northwest demand, while Gulf of Mexico deepwater gathering captures offshore supply. Momentum adds the Haynesville corridor: a Gulf Coast-adjacent supply basin whose gas is less than 300 miles from major LNG export terminals.

Transco originates at the Gulf Coast and runs north to Northeast heating and power markets, giving Williams optionality to route Haynesville volumes either south toward Gulf LNG terminals via Delta Access or north via Transco depending on price signals. Zamarin said Momentum "brings a high-quality customer base, durable take-or-pay contracts and complementary infrastructure" in Williams' August 3 earnings release. The Haynesville's proximity to tidewater gives Williams a transport cost advantage over Appalachian gas competing for the same Gulf LNG export slots.