Current
$56.8B
5-Year Average
$39.7B
All-Time High
$68.7B
All-Time Low
$1.3B
Market cap daily chart for ONEOK (OKE)
Aug 2, 2021 – Jul 29, 2026 · 1,253 trading days
Market Cap growth chart for ONEOK (OKE) from 2017 to 2026
Latest: +22.5%
Market Cap history table for ONEOK (OKE) from 1985 to 2026
| 2026 | $56.8B | +22.5% | +$10.5B | ||
| 2025 | $46.4B | -21.2% | -$12.5B | ||
| 2024 | $58.9B | +72.8% | +$24.8B | ||
| 2023 | $34.1B | +15.7% | +$4.62B | ||
| 2022 | $29.5B | +12.1% | +$3.17B | ||
| 2021 | $26.3B | +58.6% | +$9.72B | ||
| 2020 | $16.6B | -47.3% | -$14.9B | ||
| 2019 | $31.4B | +40.7% | +$9.09B | ||
| 2018 | $22.3B | +39.5% | +$6.32B | ||
| 2017 | $16B | +31.4% | +$3.83B | ||
| 2016 | $12.2B | +134.8% | +$7B | ||
| 2015 | $5.19B | -50.4% | -$5.29B | ||
| 2014 | $10.5B | -8.2% | -$939M | ||
| 2013 | $11.4B | +44.7% | +$3.53B | ||
| 2012 | $7.89B | -3.1% | -$253M | ||
| 2011 | $8.14B | +55.5% | +$2.91B | ||
| 2010 | $5.23B | +26.2% | +$1.09B | ||
| 2009 | $4.15B | +53.8% | +$1.45B | ||
| 2008 | $2.7B | -37.1% | -$1.59B | ||
| 2007 | $4.28B | -0.9% | -$38.2M | ||
| 2006 | $4.32B | +71.6% | +$1.8B | ||
| 2005 | $2.52B | -4.0% | -$105M | ||
| 2004 | $2.62B | +39.9% | +$748M | ||
| 2003 | $1.88B | +11.1% | +$187M | ||
| 2002 | $1.69B | +8.5% | +$132M | ||
| 2001 | $1.56B | -24.8% | -$514M | ||
| 2000 | $2.07B | +86.8% | +$962M | ||
| 1999 | $1.11B | +38.3% | +$307M | ||
| 1998 | $801M | +2.2% | +$17.4M | ||
| 1997 | $784M | +20.5% | +$133M | ||
| 1996 | $651M | +26.5% | +$136M | ||
| 1995 | $514M | +22.1% | +$93.1M | ||
| 1994 | $421M | -15.9% | -$79.6M | ||
| 1993 | $501M | +26.4% | +$105M | ||
| 1992 | $396M | +22.0% | +$71.4M | ||
| 1991 | $325M | +5.7% | +$17.4M | ||
| 1990 | $307M | -16.6% | -$61M | ||
| 1989 | $368M | +77.3% | +$160M | ||
| 1988 | $208M | -54.5% | -$248M | ||
| 1987 | $456M | +16.1% | +$63.3M | ||
| 1986 | $393M | +12.3% | +$42.9M | ||
| 1985 | $350M | — | — |
- 2026$56.8B+22.5%
- 2025$46.4B-21.2%
- 2024$58.9B+72.8%
- 2023$34.1B+15.7%
- 2022$29.5B+12.1%
- 2021$26.3B+58.6%
- 2020$16.6B-47.3%
- 2019$31.4B+40.7%
- 2018$22.3B+39.5%
- 2017$16B+31.4%
- 2016$12.2B+134.8%
- 2015$5.19B-50.4%
- 2014$10.5B-8.2%
- 2013$11.4B+44.7%
- 2012$7.89B-3.1%
- 2011$8.14B+55.5%
- 2010$5.23B+26.2%
- 2009$4.15B+53.8%
- 2008$2.7B-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$801M+2.2%
- 1997$784M+20.5%
- 1996$651M+26.5%
- 1995$514M+22.1%
- 1994$421M-15.9%
- 1993$501M+26.4%
- 1992$396M+22.0%
- 1991$325M+5.7%
- 1990$307M-16.6%
- 1989$368M+77.3%
- 1988$208M-54.5%
- 1987$456M+16.1%
- 1986$393M+12.3%
- 1985$350M—
Market Cap values are taken from ONEOK's reported income statements (share counts) and end-of-day prices (quarterly 10-Q and annual 10-K filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the filing date. YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
About Market Cap at ONEOK (OKE)
According to ONEOK's latest reported financial statements, the company's latest reported market cap is $57.1B. 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 .
ONEOK (OKE) most recent annual market cap stands at $56.8B (2026) – grew 22.5% year-over-year.
Through 2021–2026 (5 years), ONEOK market cap delivered a +16.7% annualised rate; with mixed annual results across the window.
ONEOK market cap peaked at $58.9B in 2024; the latest annual figure is $56.8B in 2026 (3.5% below peak).
The highest annual market cap of $58.9B was reported in 2024. The lowest in the available history was $208M in 1988.
ONEOK Market Cap by Year
ONEOK Market Cap 2026: $56.8B
In 2026, ONEOK reported market cap of $56.8B, grew 22.5% from 2025.
ONEOK Market Cap 2025: $46.4B
ONEOK market cap in 2025 was $46.4B, declined 21.2% below 2024.
ONEOK Market Cap 2024: $58.9B
2024's market cap for ONEOK came in at $58.9B, surged 72.8% from 2023. This figure represents the highest annual value in the available history.
ONEOK Market Cap 2023: $34.1B
ONEOK posted market cap of $34.1B in 2023, grew 15.7% from 2022.
ONEOK Market Cap 2022: $29.5B
ONEOK market cap in 2022 was $29.5B.
See more financial history for ONEOK (OKE).
Sector peers by Market Cap
Energy peers of ONEOK (OKE), ranked by their latest market cap
| $382B | |
| $144B | |
| $120B | |
| $90.1B | |
| $89.5B | |
| $85.8B | |
| $82.9B | |
| $77.7B |
- $382B
- $144B
- $120B
- $90.1B
- $89.5B
- $85.8B
- $82.9B
- $77.7B
Frequently asked questions
Test yourself on OKE
Market Cap — 10 rounds, every one of them OKE against another company. Leave whenever you like.
Practice run — it doesn’t move your skill rating and doesn’t touch the leaderboards. Misses do go into your review queue.
ONEOK (OKE) Key Financials
Charts, filings, and peer comparison for every metric
Explore more
Deep-dives across the income statement, cash flow, capital return, and valuation
- Buybacks0.08% TTM
- Dividend Profile4.67% yield
- Dividend Calculator
- Dividend Forecast
- Dividend Capture
- Stock Split History5 splits
How this company returns cash to shareholders — buybacks, dividends, and stock splits.