ONEOK to buy Brazos Midstream Permian assets for $4.425bn
ONEOK (OKE) agreed to buy Brazos Midstream's Permian Midland Basin assets for $4.425bn in cash. The deal is expected to boost ONEOK's EBITDA growth and be immediately accretive to earnings. ONEOK also announced a $9bn minority equity investment from Apollo-managed funds and $5bn debt extinguishment, though these figures are not yet independently verified. OKE shares closed at $95.55 on 31 August 2026, up 0.53% on the day.
How this was made

The 30-second read
Why it matters
The acquisition is positioned to lift ONEOK’s adjusted EBITDA growth to the high single‑digit range and improve free cash flow per share.
Market read
The transaction is a significant M&A event in the U.S. energy infrastructure space, likely influencing sector sentiment and peer valuations.
What to watch
Potential regulatory or antitrust review and integration risks could delay expected accretion.
Background
ONEOK is a Tulsa‑based pipeline operator expanding its gathering and processing network in the Permian Basin.
Ticker impact
ONEOK announced a $4.425 bn cash acquisition of Brazos Midstream’s Permian assets, a material M&A deal that is immediately accretive to earnings.
Potential short‑term upside as investors price in higher earnings and cash flow visibility.
Large cash purchase with clear strategic rationale; market already showed a modest price rise on the announcement.
Market effects
Strengthens the midstream energy sector’s exposure to Permian gas volumes and may prompt peer activity.
Positive for U.S. energy infrastructure investors, especially in Texas and the broader Gulf Coast region.
Highlights continued consolidation in global natural‑gas midstream assets, relevant for international energy funds.
Counterpoint
Deal financing relies on unverified Apollo equity and debt extinguishment; if financing terms change, the upside could be limited.
Key entities
- CompanyONEOK
NYSE‑listed midstream energy company acquiring assets.
- CompanyBrazos Midstream
Seller of the Permian gathering and processing assets.



