Market Cap for ONEOK (OKE)
According to ONEOK's latest reported financial statements, the company's latest reported market cap is $46.39B USD. Market capitalization is the total dollar value of all outstanding shares — shares outstanding × stock price — and the standard measure of a company's equity value. On this page, historical market cap snaps filing-period share counts to closing prices on or before each statement date (not intraday tick data).
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
OKE
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Latest period
$46.39B
YoY change
+21.5%
5Y CAGR
+16.5%
Peak year (2024)
$58.88B
Latest annual
$56.38B
Market Cap history chart for ONEOK (OKE) from 1985 to 2026
Market Cap history table for ONEOK (OKE) from 1985 to 2026
| Fiscal year | Period ended | Reported | Market Cap | YoY |
|---|---|---|---|---|
| 2026 | $56.38B | +21.5% | ||
| 2025 | $46.39B | -21.2% | ||
| 2024 | $58.88B | +72.8% | ||
| 2023 | $34.08B | +15.7% | ||
| 2022 | $29.46B | +12.1% | ||
| 2021 | $26.29B | +58.6% | ||
| 2020 | $16.57B | -47.3% | ||
| 2019 | $31.44B | +40.7% | ||
| 2018 | $22.35B | +39.5% | ||
| 2017 | $16.02B | +31.4% | ||
| 2016 | $12.19B | +134.8% | ||
| 2015 | $5.19B | -50.4% | ||
| 2014 | $10.48B | -8.2% | ||
| 2013 | $11.42B | +44.7% | ||
| 2012 | $7.89B | -3.1% | ||
| 2011 | $8.14B | +55.5% | ||
| 2010 | $5.23B | +26.2% | ||
| 2009 | $4.15B | +53.8% | ||
| 2008 | $2.70B | -37.1% | ||
| 2007 | $4.28B | -0.9% | ||
| 2006 | $4.32B | +71.6% | ||
| 2005 | $2.52B | -4.0% | ||
| 2004 | $2.62B | +39.9% | ||
| 2003 | $1.88B | +11.1% | ||
| 2002 | $1.69B | +8.5% | ||
| 2001 | $1.56B | -24.8% | ||
| 2000 | $2.07B | +86.8% | ||
| 1999 | $1.11B | +38.3% | ||
| 1998 | $801.43M | +2.2% | ||
| 1997 | $783.99M | +20.5% | ||
| 1996 | $650.52M | +26.5% | ||
| 1995 | $514.17M | +22.1% | ||
| 1994 | $421.05M | -15.9% | ||
| 1993 | $500.64M | +26.4% | ||
| 1992 | $395.98M | +22.0% | ||
| 1991 | $324.57M | +5.7% | ||
| 1990 | $307.14M | -16.6% | ||
| 1989 | $368.17M | +77.3% | ||
| 1988 | $207.70M | -54.5% | ||
| 1987 | $456.00M | +16.1% | ||
| 1986 | $392.70M | +12.3% | ||
| 1985 | $349.80M | — |
Market Cap values are taken from ONEOK's reported income statements (10-Q quarterly and 10-K annual filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the date the filing was reported; YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
Analysis
ONEOK (OKE) most recent annual market cap stands at $56.38B (2026) – grew 21.5% year-over-year.
Through 2021–2026 (5 years), ONEOK market cap delivered a +16.5% annualised rate; with the latest reading among the more recent periods of the dataset.
ONEOK market cap peaked at $58.88B in 2024; the latest annual figure is $56.38B in 2026 (4.3% below peak).
The highest annual market cap of $58.88B was reported in 2024. The lowest in the available history was $207.70M in 1988.
ONEOK (OKE) sits 9th of 8 Energy peers we track on this metric, against a peer median of $102.52B.
ONEOK Market Cap by Year
ONEOK Market Cap 2026: $56.38B
ONEOK market cap in 2026 was $56.38B, grew 21.5% from 2025.
ONEOK Market Cap 2025: $46.39B
ONEOK market cap in 2025 was $46.39B, declined 21.2% below 2024.
ONEOK Market Cap 2024: $58.88B
ONEOK market cap in 2024 was $58.88B, surged 72.8% from 2023. This figure represents the highest annual value in the available history.
ONEOK Market Cap 2023: $34.08B
ONEOK market cap in 2023 was $34.08B, grew 15.7% from 2022.
ONEOK Market Cap 2022: $29.46B
ONEOK market cap in 2022 was $29.46B.
See more financial history for ONEOK (OKE).
Sector peers — Market Cap
Companies in the same sector as ONEOK, ranked by their latest market cap.
| Company | Market Cap | Sector |
|---|---|---|
| Exxon Mobil Corporation (XOM) | $625.81B | Energy |
| Chevron Corporation (CVX) | $375.85B | Energy |
| ConocoPhillips (COP) | $151.53B | Energy |
| Enbridge Inc. (ENB) | $115.72B | Energy |
| The Williams Companies, Inc. (WMB) | $89.32B | Energy |
| SLB N.V. (SLB) | $83.54B | Energy |
| EOG Resources, Inc. (EOG) | $72.74B | Energy |
| Valero Energy Corporation (VLO) | $71.85B | Energy |
Frequently asked questions
What is ONEOK's market cap?
- Latest reported market cap for ONEOK (OKE) is $46.39B (period ending December 31, 2025).
How has ONEOK market cap changed year-over-year?
- ONEOK (OKE) market cap changed +21.5% year-over-year on the latest annual filing.
What is the long-term growth rate of ONEOK market cap?
- ONEOK (OKE) market cap compound annual growth rate is +16.5% over the most recent 5 years available.
When did ONEOK market cap hit its highest annual value?
- ONEOK market cap reached its highest annual value of $58.88B in 2024.
What was ONEOK market cap in 2025?
- ONEOK (OKE) market cap in 2025 was $46.39B.
What was ONEOK market cap in 2026?
- ONEOK (OKE) market cap in 2026 was $56.38B.
Metrics overview
Pick a metric for charts, filings, and peers — each row shows the latest TTM or annual value with year-over-year change.
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