TL;DR - ONEOK (OKE) agreed August 30 to acquire Brazos Midstream's Permian Midland Basin assets for $4.425 billion in cash. - A concurrent $9 billion nonvoting equity investment from Apollo will be used primarily to reduce $5 billion of existing ONEOK debt, with the remainder contributing to the Brazos purchase price; no common shares are issued. - The acquired assets cover ~600,000 dedicated acres under contracts averaging more than 12 years remaining, with 14 active drilling rigs from ExxonMobil, Diamondback Energy, and Double Eagle. - Once the Cassidy II plant completes in Q3 2027, ONEOK's combined Midland Basin processing capacity is expected to approximately double to 2.3 Bcf/d.
Part A — The Deal
What ONEOK Is Buying
On Sunday, August 30, ONEOK Inc. (NYSE: OKE) signed a definitive agreement to acquire the Permian Midland Basin natural gas gathering and processing assets of Brazos Midstream, a private midstream operator. The cash purchase price is $4.425 billion.
The assets include roughly 700 miles of gathering pipeline infrastructure and processing facilities spread across seven core Midland Basin counties. Once the Cassidy II plant — currently under construction — reaches completion in Q3 2027, the acquired system will be capable of handling 1.2 Bcf/d of natural gas. Combined with ONEOK's existing Midland Basin footprint, total processing capacity is expected to reach approximately 2.3 Bcf/d — roughly double the company's pre-deal position.
Producer Relationships: Fourteen active drilling rigs are currently operating on the dedicated acreage, with customers including ExxonMobil (XOM), Diamondback Energy (FANG), and private operator Double Eagle. The ~600,000 dedicated acres are locked under long-term fixed-fee contracts with a weighted average remaining term exceeding 12 years, providing a high degree of cash flow visibility.
Funding: The Apollo Structure
Unlike traditional M&A financing that relies on equity issuance or straight debt, ONEOK is funding the Brazos deal through a $9 billion nonvoting Class B minority equity investment from funds managed by Apollo Global Management (APO). The investment closes in the first half of September 2026, ahead of the Brazos transaction itself.
Key terms of the Apollo structure:
| Feature | Terms |
|---|---|
| Investment vehicle | Nonvoting Class B interest, ONEOK Holdings, LLC |
| IRR cap (Years 1–9) | 7.0% |
| IRR step-up (Year 10) | 7.35% |
| IRR step-up (Year 15) | 7.85% |
| Cash flow share | 15% of quarterly operating cash flow |
| Seniority | Subordinate to all existing senior debt |
| ONEOK buyback option | After year 8, or when capital balance reaches $200M |
Of the $9 billion in Apollo proceeds, ONEOK has committed $5 billion to retire existing indebtedness (including a $1.2 billion term loan). The remaining approximately $4 billion, supplemented by existing balance sheet liquidity, covers the $4.425 billion Brazos purchase price. Under GAAP, the investment will appear as a noncontrolling interest (NCI) within permanent equity — not as debt — and credit rating agencies have reviewed the structure, treating it as equity for leverage purposes.
Deal Valuation and Timeline
- 2027 EBITDA multiple: ~7.5x (including approximately $80 million in full-year synergies)
- 2028 EBITDA multiple: ~6.0x (reflecting ramp and synergies)
- Brazos acquisition expected to close: Q4 2026, subject to Hart-Scott-Rodino (HSR) antitrust clearance and customary conditions
- ONEOK board voted unanimously in favor
Advisors: Barclays and Lazard (ONEOK financial); Latham & Watkins (ONEOK legal); RBC Capital Markets (Apollo financial); Milbank LLP (Apollo legal); Akin Gump Strauss Hauer & Feld (Brazos legal).
Part B — What This Means for OKE Investors
The Apollo Financing Is the Real Story
The $4.425 billion acquisition price is large, but the mechanism used to fund it may be more significant than the deal itself.
ONEOK needed to deploy new capital both for the Brazos acquisition and for a concurrent $5 billion debt reduction — without issuing common equity (which would dilute existing shareholders) or piling on more debt (which would pressure credit ratings). Apollo's $9 billion nonvoting equity structure threads that needle.
The math works as follows: Apollo receives 15% of quarterly operating cash flow in exchange for its $9 billion injection. ONEOK retains the other 85% and the right to buy back Apollo's interest after year 8, or sooner if Apollo's capital balance falls to $200 million through distributions. Because the structure is subordinate to senior debt, credit agencies agreed to treat it as equity — a classification that improves leverage ratios without adding reported debt.
The GAAP drag: ONEOK has disclosed that approximately 7% of Apollo's remaining capital balance annually will be subtracted from net income as a preferred-style charge. At $9 billion, that is roughly $630 million in year one, declining as distributions reduce the capital account over time. This will make reported EPS look weaker than underlying cash earnings, a distinction investors should monitor carefully.
CEO Pierce Norton II called the transaction part of ONEOK's strategy of "intentionally expanding and extending our integrated energy infrastructure." Apollo Partner Jamshid Ehsani described it as a demonstration of Apollo's "ability to deliver flexible, high-grade capital solutions at scale."
Permian Gathering: Why Scale Now
ONEOK's existing midstream network already connects Permian Basin wellheads to Gulf Coast export terminals. The Brazos assets extend that hub-and-spoke model deeper into the Midland Basin's core, where producers like ExxonMobil and Diamondback are among the lowest-cost drillers in North America.
With the Cassidy II plant expected online in Q3 2027, the acquired system will contribute up to 1.2 Bcf/d — and the combined Midland Basin footprint is projected to reach approximately 2.3 Bcf/d. In a basin where associated natural gas volumes rise with every barrel of oil drilled, locking in 600,000 acres under 12-year fixed-fee contracts provides a durable revenue base largely insulated from short-term commodity price swings.
Synergy path: ONEOK expects to realize approximately $80 million of annual synergies by 2027, primarily from operational integration with its existing gathering and fractionation network — including the soon-to-complete Medford fractionation facility — and the West Texas NGL Pipeline, which carries NGLs from the Permian to the Mont Belvieu hub.
Financial Snapshot and Guidance Context
| Metric | Value |
|---|---|
| OKE stock price (last close, Aug 28) | ~$94.76 |
| Market cap | ~$59.7 billion |
| P/E ratio | 16.4x |
| Annual dividend | $4.28/share |
| Dividend yield | ~4.5% |
| 52-week range | $64.02–$97.90 |
| FY2025 adjusted EBITDA | $8.0 billion (+18% YoY) |
| FY2026 adjusted EBITDA guidance | $8.2B–$8.5B (midpoint $8.35B) |
| Pro forma 2027 leverage (post-deal) | ~3.25x debt/EBITDA |
| Analyst consensus | Buy (23 analysts), price target $96.62 |
ONEOK raised its FY2026 adjusted EBITDA guidance to a $8.2B–$8.5B range earlier in 2026 on stronger volumes and commodity prices. Management has stated the Brazos deal is expected to advance ONEOK toward the high end of its mid-to-high single-digit adjusted EBITDA compounded growth target over the 5–7 year horizon — with the 2.3 Bcf/d Midland Basin platform being a key driver of that long-run trajectory.
Pro forma leverage: The $5 billion debt paydown from Apollo proceeds cuts ONEOK's projected 2027 debt-to-EBITDA to approximately 3.25x — well within investment-grade midstream norms — despite executing a $4.4 billion acquisition. This is the central reason credit rating agencies view the transaction as credit-enhancing.
Risks Investors Should Monitor
1. HSR antitrust review: The deal requires Hart-Scott-Rodino clearance. ONEOK already operates in the Permian Basin, and acquiring Brazos's acreage deepens its share of Midland Basin gathering. Antitrust review is expected to be routine given the fragmented nature of midstream competition, but delays are possible.
2. GAAP EPS headwind: The Apollo NCI structure will subtract an estimated 7% of the remaining capital balance from net income annually — roughly $630 million in year one. Management and analysts are expected to focus on adjusted EBITDA and free cash flow per share rather than GAAP EPS.
3. Integration execution: Merging 700 miles of gathering infrastructure, facilities across seven Midland Basin counties, and a large producer-customer base into an existing network involves operational risk. ONEOK absorbed Magellan Midstream in 2023 for $18.8 billion, which provides institutional experience — but the Brazos assets are still under active expansion with Cassidy II in progress.
4. Commodity price exposure (limited): The fixed-fee contract structure largely shields ONEOK from direct natural gas price risk. However, sustained low commodity prices could reduce drilling activity from ExxonMobil, Diamondback, and Double Eagle on the dedicated acreage, compressing throughput volumes.
Investment Takeaway
For existing OKE shareholders, Sunday's announcement is a rare instance of a major acquisition that does not come at the cost of dilution or balance sheet stress. The Apollo structure is arguably more innovative than the Brazos assets themselves — it demonstrates that institutional capital can fund large infrastructure transactions at scale without the usual equity-versus-debt tradeoffs.
At 16.4x earnings and a 4.5% dividend yield, OKE occupies a middle ground: not cheap enough for pure value buyers, but offering enough growth and income to attract dividend-oriented infrastructure investors. The key question for the next 18 months is whether pro forma adjusted EBITDA — combining the Brazos assets, Cassidy II completion, and $80 million in synergies — can sustain the current multiple as the Apollo NCI charge flows through reported GAAP earnings.
Monday's market open will provide the first investor verdict on how the deal's creative financing stacks up against the headline acquisition price.
Sources: ONEOK press release (August 30, 2026); PR Newswire; Apollo Global Management IR; Seeking Alpha; StockAnalysis.com; Investing.com. This article is for informational purposes only and does not constitute investment advice. LineVest News is not a registered investment adviser.
