Williams Companies Inc — Current Report (Form 8-K)

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d)

of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): January 8, 2026

The Williams Companies, Inc.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (918) 573-2000

NOT APPLICABLE

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

On January 8, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.650% Senior Notes due 2033 (the “ New 2033 Notes”), $1.25 billion aggregate principal amount of its 5.150% Senior Notes due 2036 (the “2036 Notes”) and $1 billion aggregate principal amount of its 5.950% Senior Notes due 2056 (the “2056 Notes” and, together with the New 2033 Notes and the 2036 Notes, the “Notes”). The New 2033 Notes are an additional issuance of the Company’s 5.650% Senior Notes due 2033 issued on March 2, 2023 and will trade interchangeably with the $750 million aggregate principal amount of such notes that were issued on such date. The Offering has been registered under the Securities Act of 1933, as amended (the “Securities Act”), pursuant to a registration statement on Form S-3 (Registration No. 333-277232) of the Company (the “Registration Statement”) and the prospectus supplement dated January 5, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on January 6, 2026 (the “Prospectus Supplement”).

The Notes were issued pursuant to an Indenture (the “Base Indenture”), dated as of December 18, 2012, between the Company and The Bank of New York Mellon Trust Company, N.A. as trustee (the “Trustee”), as supplemented, in the case of the New 2033 Notes, by the Seventh Supplemental Indenture (the “Seventh Supplemental Indenture”), dated as of March 2, 2023, between the Company and the Trustee, and, in the case of the 2036 Notes and the 2056 Notes, by the Thirteenth Supplemental Indenture (the “Thirteenth Supplemental Indenture,” and together with the Base Indenture and the Seventh Supplemental Indenture, the “Indenture”), dated as of January 8, 2026, between the Company and the Trustee. The New 2033 Notes are represented by a global security, a form of which is included as an exhibit to the Seventh Supplemental Indenture. The 2036 Notes and 2056 Notes are each represented by a global security, the applicable forms of which are included as exhibits to the Thirteenth Supplemental Indenture.

The New 2033 Notes will pay interest semi-annually in cash in arrears on March 15 and September 15 of each year, beginning on March 15, 2026. The interest payment with respect to the New 2033 Notes on March 15, 2026 will include accrued interest from September 15, 2025. The 2036 Notes and the 2056 Notes will pay interest semi-annually in cash in arrears on March 15 and September 15 of each year, beginning on September 15, 2026. The Notes are the Company’s senior unsecured obligations and will rank equally in right of payment with all of its other senior indebtedness and senior to all of its future indebtedness that is expressly subordinated in right of payment to the Notes.

The Indenture contains covenants that, among other things, restrict the Company’s ability to incur liens on assets to secure certain debt and merge, consolidate or sell, assign, transfer, lease convey or otherwise dispose of all or substantially all of its assets, subject to certain qualifications and exceptions. The Indenture includes customary events of default, including payment defaults and certain events of bankruptcy, insolvency or reorganization.

The Company may redeem some or all of the Notes at any time or from time to time prior to December 15, 2032, in the case of the New 2033 Notes, December 15, 2035, in the case of the 2036 Notes, and September 15, 2055, in the case of the 2056 Notes, at a specified “make-whole” premium described in the Indenture. The Company also has the option at any time or from time to time on or after December 15, 2032, in the case of the New 2033 Notes, December 15, 2035, in the case of the 2036 Notes, and September 15, 2055, in the case of the 2056 Notes, to redeem the applicable Notes, in whole or in part, at a redemption price equal to 100% of the principal amount of the Notes to be redeemed, plus accrued and unpaid interest thereon to the redemption date, as more fully described in the Indenture. A copy of the Base Indenture and Seventh Supplemental Indenture were previously filed, and a copy of the Thirteenth Supplemental Indenture is filed as Exhibit 4.1 to this report. The description of the terms of the Base Indenture, Seventh Supplemental Indenture, and Thirteenth Supplemental Indenture in this Item 1.01 are qualified in their entirety by reference to such exhibits.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.