Company facts
- Headquarters
- Tulsa, Oklahoma
- Most recent report
- 10-Q, filed Aug 4, 2026
- Incorporated
- Oklahoma
- Filings on record
- 1,000+ filings
- On EDGAR
- CIK 1039684
- Fiscal year ends
- December
- Filer status
- Large accelerated filer
Financials 8 of 32
News 8 of 258
Prospectuses and Registrations 8 of 52
- 424B5 Prospectus supplement for an offering Aug 4, 2026
- S-3ASR Automatic shelf registration Jun 18, 2026
- S-3ASR Automatic shelf registration Jun 18, 2026
- 424B5 Prospectus supplement for an offering Aug 8, 2025
- FWP Free writing prospectus Aug 7, 2025
- 424B5 Prospectus supplement for an offering Aug 6, 2025
- S-3ASR Automatic shelf registration Jun 3, 2025
- S-8 Registration statement for an employee plan May 22, 2025
Proxies 8 of 20
- DEFA14A Extra proxy material May 6, 2026
- DEF 14A Proxy statement for a shareholder vote Apr 1, 2026
- DEFA14A Extra proxy material May 8, 2025
- DEF 14A Proxy statement for a shareholder vote Apr 2, 2025
- DEFA14A Extra proxy material May 8, 2024
- DEFR14A May 1, 2024
- DEFA14A Extra proxy material Apr 4, 2024
- DEF 14A Proxy statement for a shareholder vote Apr 3, 2024
Ownership 8 of 558
- 4 Insider reported a trade Jun 1, 2026
- 4 Insider reported a trade May 22, 2026
- 4 Insider reported a trade May 22, 2026
- 4 Insider reported a trade May 22, 2026
- 4 Insider reported a trade May 22, 2026
- 4 Insider reported a trade May 22, 2026
- 4 Insider reported a trade May 22, 2026
- 4 Insider reported a trade May 22, 2026
Other 8 of 80
Everything here comes from Oneok Inc's own filings on SEC EDGAR. The filing list is rechecked every hour.