ONEOK (OKE) Market Cap 1985–2026

As of November 13, 2026, ONEOK had a market cap of $56.58 billion, which increased by 1.00% compared to the previous trading day. Market capitalization, often referred to as market cap, represents the total value of a company's outstanding shares on the stock market and is a common measure of its overall size and valuation.

Data updated: Nov 13, 2026, 4:00 PM ET
ONEOK logo

ONEOK Inc. (OKE)

🌍 United States 📈 NYSE 🏭 Energy 🏢 Oil, Gas & Consumable Fuels
Latest Market Cap
$56.58B ▲ 1.00%
Start of 2026
$46.25B ▲ 22.34%
1 Year Ago
$43.69B ▲ 29.50%
All-Time High
$68.386B ▼ 17.26%


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Note: Each point on the chart represents the market capitalization at the end of the trading day.
Source: Data compiled from EDGAR filings, Bloomberg and Yahoo Finance.

📈 ONEOK Market Cap History by Year and Month

ONEOK Market Cap History by Year and Month
Year / MonthMarket Cap% Change
2026$56.58B▲ 22.34%
$56.58B▼ 7.55%
$61.2B▲ 13.86%
$53.75B▼ 11.19%
$60.52B▲ 5.79%
$57.21B▲ 4.45%
$54.77B▲ 3.57%
$52.88B▼ 9.22%
$58.25B▲ 2.32%
$56.93B▲ 9.31%
$52.08B▲ 4.52%
$49.83B▲ 7.74%
2025$46.25B▼ 21.00%
2024$58.544B▲ 43.12%
2023$40.907B▲ 39.31%
2022$29.365B▲ 12.01%
All market cap values reflect closing prices for the period shown.

📊 ONEOK Market Cap and Other Industry Peers

Below are selected companies for comparison based on industry, sub-industry, and sector:

  1. $86.43B
  2. $82.32B
  3. $71.11B
  4. $63.77B
  5. $63.32B
  6. $58.74B
  7. $56.58B
  8. $53.14B
  9. $51.64B
  10. $33.04B
  11. $20.45B
  12. $20.13B
  13. $19.33B
  14. $17.67B
  15. $17.66B
  16. $16.48B
  17. $12.21B
  18. $12.11B
  19. $11.9B
  20. $9.69B


Data reflect the most recent market capitalization values available.

Note: Market capitalization figures are based on available sources and may differ slightly from actual values, particularly for historical data.