Midstream M&A Accelerates on LNG and Power Demand
Major midstream operators are executing multi-billion dollar acquisitions to secure infrastructure for rising LNG exports and domestic power generation.
The midstream sector has pivoted toward aggressive consolidation after a sluggish start to 2026. Companies are deploying significant capital to expand natural gas and crude oil infrastructure, driven by surging export demand for liquefied natural gas and a sharp rise in domestic power needs.
This strategic shift is visible across the holdings of the Alerian Energy Infrastructure ETF, where operators are racing to secure capacity along key U.S. corridors. The focus is on gathering, processing, and pipeline expansion to meet structural growth in both international trade and local utility consumption.
Williams Expands Gulf Coast Gas Capacity
Williams Companies closed its $5.5 billion acquisition of Momentum Midstream to reinforce its Haynesville natural gas platform. The deal adds over 4,000 miles of pipe, 1 million dedicated acres, and 6 billion cubic feet per day of gathering capacity. It also includes three take-or-pay pipelines with 4.05 billion cubic feet per day of transportation capacity.
Alongside the purchase, Williams announced the Delta Access Pipeline Project. This $1.5 billion expansion will initially offer 2.25 billion cubic feet per day of capacity, expandable to 3.5 billion cubic feet per day. The pipeline connects Momentum’s network directly to the Gulf Coast, serving LNG, power, and industrial demand.
ONEOK Doubles Midland Basin Processing
ONEOK agreed to acquire Brazos Midstream’s Permian Midland Basin assets for $4.4 billion. The transaction is supported by a $9 billion nonvoting minority equity investment from Apollo. Of this amount, $5 billion is designated to extinguish existing debt, helping ONEOK reach its 3.25x debt-to-EBITDA target.
The acquisition doubles ONEOK’s Midland Basin processing capacity to approximately 2.3 billion cubic feet per day. It will add 700 miles of gathering infrastructure upon the completion of the Cassidy II plant in the third quarter of 2027. Management expects the deal to be immediately accretive to earnings and free cash flow per share, with the Apollo investment closing in early September and the acquisition completing in the fourth quarter of 2026.
Enbridge Secures Rockies and Permian Assets
Enbridge announced a roughly $2.6 billion cash acquisition of Tallgrass Energy’s crude oil business. The deal centers on a 75% interest in the 1,050-mile Pony Express Pipeline, which moves approximately 460,000 barrels per day from the Rockies to Cushing, Oklahoma. The transaction also adds 8.4 million barrels of connected terminal storage.
In the Permian, Enbridge agreed to buy Salt Creek Midstream’s Delaware Basin crude gathering business for $600 million. This includes roughly 500 miles of infrastructure and full ownership of the Orla and Wink North systems. The assets provide 420,000 barrels per day of throughput and 350,000 barrels of storage, supporting wellhead-to-water integration to the Enbridge Ingleside Energy Center.
