OKE SEC Filings: 8-K, 10-Q, S-3 & 424B – ONEOK

Financials

TYPE

HEADLINE

FILED AT

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Oct 28, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Aug 4, 2026

11-K

Form 11-K - Annual report of employee stock purchase, savings and similar plans

Jun 24, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Apr 29, 2026

10-K

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]

Feb 24, 2026

10-Q

Form 10-Q - Quarterly report [Sections 13 or 15(d)]

Oct 29, 2025

News

TYPE

HEADLINE

FILED AT

8-K

ONEOK Announces Higher Third-Quarter 2026 Earnings and Increases 2026 Financial Guidance

Oct 27, 2026

8-K

ONEOK Announces Early Results of Cash Tender Offers

Sep 15, 2026

8-K12B

$9 Billion Minority Equity Investment by Apollo Enhances Credit Rating, Closes Successfully

Sep 10, 2026

8-K

ONEOK to Acquire Brazos Midstream’s Permian Midland Basin Assets for $4.425 Billion

Aug 31, 2026

8-K

ONEOK Reports Strong Second-Quarter 2026 Results and Increases Full-Year Financial Guidance

Aug 3, 2026

8-K

ONEOK, Inc. Announces Results of 2026 Annual Meeting of Shareholders

May 21, 2026

Prospectus

TYPE

HEADLINE

FILED AT

424B5

[No Baby Shelf]* September 2026 ATM | Offering amount: $1,000,000,000 | Bank: BofA Securities, Inc.

Sep 15, 2026

424B5

AMENDED - August 2026 ATM | Offering amount: $1,000,000,000 | Bank: BofA Securities, Inc.

Aug 4, 2026

424B5

FIXED PRICE OFFERING - SENIOR NOTES | Offering amount: $2,988,565,000 | Bank: Mizuho

Aug 8, 2025

424B5

Form 424B5 - Prospectus [Rule 424(b)(5)]

Aug 6, 2025

425

Form 425 - Prospectuses and communications, business combinations

Jan 30, 2025

425

Form 425 - Prospectuses and communications, business combinations

Jan 22, 2025

Registrations

TYPE

HEADLINE

FILED AT

POSASR

Form POSASR - Post-effective Amendment to an automatic shelf registration statement

Sep 10, 2026

POSASR

Form POSASR - Post-effective Amendment to an automatic shelf registration statement

Sep 10, 2026

S-8 POS

Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments

Sep 10, 2026

S-8 POS

Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments

Sep 10, 2026

S-8 POS

Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments

Sep 10, 2026

S-8 POS

Form S-8 POS - Securities to be offered to employees in employee benefit plans, post-effective amendments

Sep 10, 2026

Proxies

TYPE

HEADLINE

FILED AT

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

May 6, 2026

DEF 14A

Form DEF 14A - Other definitive proxy statements

Apr 1, 2026

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

May 8, 2025

DEF 14A

Form DEF 14A - Other definitive proxy statements

Apr 2, 2025

DEFA14A

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material

May 8, 2024

DEFR14A

Form DEFR14A - Revised definitive proxy soliciting materials

May 1, 2024

Ownerships

TYPE

HEADLINE

FILED AT

SPEARS MARY M (Reporting)

Oct 19, 2026

SCHEDULE 13G

BlackRock, Inc. (Filed by)

Oct 5, 2026

SCHEDULE 13G/A

BlackRock, Inc. (Filed by)

Oct 5, 2026

SPEARS MARY M (Reporting)

Sep 24, 2026

HULSE WALTER S III (Reporting)

Sep 24, 2026

SWORDS SHERIDAN C (Reporting)

Sep 24, 2026

Other

TYPE

HEADLINE

FILED AT

Form SD - Specialized disclosure report

Sep 24, 2026

Form SD - Specialized disclosure report

Sep 24, 2025

EFFECT

Form EFFECT - Notice of Effectiveness

Dec 31, 2024

CORRESP

Form CORRESP - Correspondence

Dec 27, 2024

LETTER

Form UPLOAD - SEC-generated letter

Dec 17, 2024

Form SD - Specialized disclosure report

Sep 25, 2024

ONEOK, Inc. OKE · SEC Filings