KMI vs OKE: How Kinder Morgan and ONEOK Compare (2026)

Same yardstick, side by side (as of July 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

Reading it: OKE is the cheaper of the two on forward earnings, but cheaper is not the same as better. Pair the valuation with growth (how far the forward P/E sits below the trailing P/E) and risk (beta) before you decide.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. KMI and OKE share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined KMI and OKE exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

Kinder Morgan, Inc. (NYSE: KMI) is one of the largest energy infrastructure companies in North America, operating over 80,000 miles of pipelines and a portfolio of storage and terminal facilities. Its four business segments are Natural Gas Pipelines (the dominant driver), Products Pipelines, Terminals, and CO2. The Natural Gas Pipelines segment transports roughly 40% of all U.S. natural gas consumption and moves approximately 8 billion cubic feet per day to LNG export facilities, with contracted volumes expected to grow to nearly 12 Bcf per day by end of 2028. The company earns the vast majority of its revenue through long-term, fee-based contracts rather than direct commodity exposure, which gives cash flows a utility-like stability.

Full KMI guide

ONEOK (NYSE: OKE) is an American midstream energy company headquartered in Tulsa, Oklahoma. It provides gathering, processing, fractionation, transportation, storage, and marine export services for natural gas, natural gas liquids, crude oil, and refined products across four reportable business segments. The company operates approximately 60,000 miles of pipeline and earns the majority of its revenue through long-term, fee-based contracts that limit direct commodity price exposure. Roughly 90% of 2026 earnings are expected to be fee-based, making cash flow relatively predictable across commodity price cycles.

Full OKE guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• KMI drivers: LNG Export Tailwind; Power and Data-Center Demand.
• OKE drivers: Fee-Based Revenue Durability; Acquisition Synergy Capture.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: KMI carries approximately $32 billion in net debt, and a debt-to-equity ratio of roughly 1.06 is well above the midstream industry average, meaning that higher-for-longer interest rates or any refinancing at elevated costs could add hundreds of millions of dollars in annual interest expense and compress margins. For OKE, oNEOK's Net Debt to EBITDA stands at approximately 4x, which is elevated even by midstream standards, and the 2026 adjusted EBITDA guidance range of approximately $7.9 to $8.3 billion was viewed by some analysts as essentially flat versus 2025, raising questions about near-term earnings momentum.

Pick KMI if you believe its drivers more; OKE if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the KMI and OKE guides.

KMI. KMI's P/E of approximately 23 times is modestly above the broader energy sector average but below higher-growth midstream peers such as Williams Companies, which traded at roughly 34 times earnings as of mid-2025. The EV/EBITDA of approximately 13 times reflects the market's recognition of stable, contracted cash flows but also a balance sheet that carries roughly $32 billion in net debt at a Net Debt to Adjusted EBITDA ratio of 3.8 times. Investors in fee-based midstream companies typically weigh dividend yield and distributable cash flow coverage alongside traditional earnings multiples, since GAAP net income can understate actual cash generation at capital-intensive pipeline operators.

OKE. ONEOK's trailing P/E of approximately 15x to 16x sits modestly below its peer group average of roughly 17.5x and well below its own 10-year historical average of approximately 23x, reflecting market uncertainty around integration complexity and a cautious 2026 volume outlook. The EV/EBITDA multiple of approximately 11x is consistent with large-cap midstream peers and suggests the market is pricing in a period of consolidation rather than re-acceleration. Free cash flow of approximately $2.5 billion in fiscal 2025 comfortably covers the dividend, supporting the roughly 76% payout ratio.

Headline figures (approximate, June 27, 2026 (based on Q4 2025 and Q1 2026 reported data and 2026 guidance)): KMI shows revenue (q4 2025, quarterly) ~$4.51 billion, revenue (q1 2025, quarterly) ~$4.24 billion, adjusted ebitda (fy 2025) ~$8.3 billion, adjusted ebitda (fy 2026 budget) ~$8.6 billion; OKE shows revenue (fy 2025) ~$33.6 billion, net income (fy 2025, attributable to oneok) ~$3.39 billion, adjusted ebitda (fy 2025) ~$8.02 billion, diluted eps (fy 2025) ~$5.42.

KMI and OKE are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined KMI and OKE exposure against your real portfolio. It is not an investment adviser.