WMB · Williams Companies, Inc. · Debt

On September 8, 2026, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with Citigroup Global Markets Inc., Mizuho Securities USA LLC, Morgan Stanley & Co. LLC and SMBC Nikko Securities America, Inc., as representatives of the underwriters named in Schedule 1 thereto, with respect to the offering and sale in an underwritten public offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). The Underwriting Agreement is filed as Exhibit 1.1 to this report.

Issuer evidence: On September 8, 2026, The Williams Companies, Inc. (the “Company”) issued a press release announcing that it had priced the Offering (as defined below). A copy of the press release is furnished and attached as Exhibit 99.1 hereto and is incorporated herein by reference.

Supporting evidence: On September 8, 2026, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with Citigroup Global Markets Inc., Mizuho Securities USA LLC, Morgan Stanley & Co. LLC and SMBC Nikko Securities America, Inc., as representatives of the underwriters named in Schedule 1 thereto, with respect to the offering and sale in an underwritten public offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). The Underwriting Agreement is filed as Exhibit 1.1 to this report.

Supporting evidence: On September 8, 2026, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with Citigroup Global Markets Inc., Mizuho Securities USA LLC, Morgan Stanley & Co. LLC and SMBC Nikko Securities America, Inc., as representatives of the underwriters named in Schedule 1 thereto, with respect to the offering and sale in an underwritten public offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). The Underwriting Agreement is filed as Exhibit 1.1 to this report.

On September 10, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). 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 September 8, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on September 9, 2026 (the “Prospectus Supplement”).

Issuer evidence: On September 10, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). 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 September 8, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on September 9, 2026 (the “Prospectus Supplement”).

Supporting evidence: On September 10, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). 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 September 8, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on September 9, 2026 (the “Prospectus Supplement”).

Supporting evidence: On September 10, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). 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 September 8, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on September 9, 2026 (the “Prospectus Supplement”).

On September 10, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). 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 September 8, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on September 9, 2026 (the “Prospectus Supplement”).

Issuer evidence: On September 10, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). 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 September 8, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on September 9, 2026 (the “Prospectus Supplement”).

Supporting evidence: On September 10, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). 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 September 8, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on September 9, 2026 (the “Prospectus Supplement”).

Supporting evidence: On September 10, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). 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 September 8, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on September 9, 2026 (the “Prospectus Supplement”).

On September 8, 2026, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with Citigroup Global Markets Inc., Mizuho Securities USA LLC, Morgan Stanley & Co. LLC and SMBC Nikko Securities America, Inc., as representatives of the underwriters named in Schedule 1 thereto, with respect to the offering and sale in an underwritten public offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). The Underwriting Agreement is filed as Exhibit 1.1 to this report.

Issuer evidence: On September 8, 2026, The Williams Companies, Inc. (the “Company”) issued a press release announcing that it had priced the Offering (as defined below). A copy of the press release is furnished and attached as Exhibit 99.1 hereto and is incorporated herein by reference.

Supporting evidence: On September 8, 2026, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with Citigroup Global Markets Inc., Mizuho Securities USA LLC, Morgan Stanley & Co. LLC and SMBC Nikko Securities America, Inc., as representatives of the underwriters named in Schedule 1 thereto, with respect to the offering and sale in an underwritten public offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). The Underwriting Agreement is filed as Exhibit 1.1 to this report.

Supporting evidence: On September 8, 2026, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with Citigroup Global Markets Inc., Mizuho Securities USA LLC, Morgan Stanley & Co. LLC and SMBC Nikko Securities America, Inc., as representatives of the underwriters named in Schedule 1 thereto, with respect to the offering and sale in an underwritten public offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). The Underwriting Agreement is filed as Exhibit 1.1 to this report.

This Note is one of the series designated on the face hereof as 5.800% Senior Notes due 2036 (the “Notes”) which was issued under the Fourteenth Supplemental Indenture to the Base Indenture dated as of September 10, 2026 (the “Supplemental Indenture,” together with the Base Indenture, the “Indenture”) and which is initially limited to $750,000,000 in principal amount.

Issuer evidence: This Note is one of a duly authorized issue of Securities (the “Securities”) of The Williams Companies, Inc. (the “Company,” which term includes any successor Person under the Base Indenture hereinafter referred to), issued and issuable in one or more series under an Indenture, dated as of December 18, 2012, (the “Base Indenture”), between the Company and The Bank of New York Mellon Trust Company, N.A., as Trustee (the “Trustee,” which term includes any successor trustee under the Base Indenture), to which Base Indenture and all indentures supplemental thereto reference is hereby made for a statement of the respective rights, limitation of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the Securities issued thereunder and of the terms upon which said Securities are, and are to be, authenticated and delivered. This Note is one of the series designated on the face hereof as 5.800% Senior Notes due 2036 (the “Notes”) which was issued under the Fourteenth Supplemental Indenture to the Base Indenture dated as of September 10, 2026 (the “Supplemental Indenture,” together with the Base Indenture, the “Indenture”) and which is initially limited to $750,000,000 in principal amount.

Supporting evidence: This Note is one of the series designated on the face hereof as 5.800% Senior Notes due 2036 (the “Notes”) which was issued under the Fourteenth Supplemental Indenture to the Base Indenture dated as of September 10, 2026 (the “Supplemental Indenture,” together with the Base Indenture, the “Indenture”) and which is initially limited to $750,000,000 in principal amount.

On September 10, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). 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 September 8, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on September 9, 2026 (the “Prospectus Supplement”).

Issuer evidence: On September 10, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). 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 September 8, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on September 9, 2026 (the “Prospectus Supplement”).

Supporting evidence: On September 10, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). 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 September 8, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on September 9, 2026 (the “Prospectus Supplement”).

Supporting evidence: On September 10, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). 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 September 8, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on September 9, 2026 (the “Prospectus Supplement”).

On September 8, 2026, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with Citigroup Global Markets Inc., Mizuho Securities USA LLC, Morgan Stanley & Co. LLC and SMBC Nikko Securities America, Inc., as representatives of the underwriters named in Schedule 1 thereto, with respect to the offering and sale in an underwritten public offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). The Underwriting Agreement is filed as Exhibit 1.1 to this report.

Issuer evidence: On September 8, 2026, The Williams Companies, Inc. (the “Company”) issued a press release announcing that it had priced the Offering (as defined below). A copy of the press release is furnished and attached as Exhibit 99.1 hereto and is incorporated herein by reference.

Supporting evidence: On September 8, 2026, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with Citigroup Global Markets Inc., Mizuho Securities USA LLC, Morgan Stanley & Co. LLC and SMBC Nikko Securities America, Inc., as representatives of the underwriters named in Schedule 1 thereto, with respect to the offering and sale in an underwritten public offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). The Underwriting Agreement is filed as Exhibit 1.1 to this report.

Supporting evidence: On September 8, 2026, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with Citigroup Global Markets Inc., Mizuho Securities USA LLC, Morgan Stanley & Co. LLC and SMBC Nikko Securities America, Inc., as representatives of the underwriters named in Schedule 1 thereto, with respect to the offering and sale in an underwritten public offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). The Underwriting Agreement is filed as Exhibit 1.1 to this report.

This Note is one of the series designated on the face hereof as 6.400% Senior Notes due 2056 (the “Notes”) which was issued under the Fourteenth Supplemental Indenture to the Base Indenture dated as of September 10, 2026 (the “Supplemental Indenture,” together with the Base Indenture, the “Indenture”) and which is initially limited to $500,000,000 in principal amount.

Issuer evidence: This Note is one of a duly authorized issue of Securities (the “Securities”) of The Williams Companies, Inc. (the “Company,” which term includes any successor Person under the Base Indenture hereinafter referred to), issued and issuable in one or more series under an Indenture, dated as of December 18, 2012, (the “Base Indenture”), between the Company and The Bank of New York Mellon Trust Company, N.A., as Trustee (the “Trustee,” which term includes any successor trustee under the Base Indenture), to which Base Indenture and all indentures supplemental thereto reference is hereby made for a statement of the respective rights, limitation of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the Securities issued thereunder and of the terms upon which said Securities are, and are to be, authenticated and delivered. This Note is one of the series designated on the face hereof as 6.400% Senior Notes due 2056 (the “Notes”) which was issued under the Fourteenth Supplemental Indenture to the Base Indenture dated as of September 10, 2026 (the “Supplemental Indenture,” together with the Base Indenture, the “Indenture”) and which is initially limited to $500,000,000 in principal amount.

Supporting evidence: This Note is one of the series designated on the face hereof as 6.400% Senior Notes due 2056 (the “Notes”) which was issued under the Fourteenth Supplemental Indenture to the Base Indenture dated as of September 10, 2026 (the “Supplemental Indenture,” together with the Base Indenture, the “Indenture”) and which is initially limited to $500,000,000 in principal amount.

On September 10, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). 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 September 8, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on September 9, 2026 (the “Prospectus Supplement”).

Issuer evidence: On September 10, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). 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 September 8, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on September 9, 2026 (the “Prospectus Supplement”).

Supporting evidence: On September 10, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). 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 September 8, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on September 9, 2026 (the “Prospectus Supplement”).

Supporting evidence: On September 10, 2026, The Williams Companies, Inc. (the “Company”) completed a registered offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). 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 September 8, 2026 and filed with the Securities and Exchange Commission pursuant to Rule 424(b) of the Securities Act on September 9, 2026 (the “Prospectus Supplement”).

On September 8, 2026, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with Citigroup Global Markets Inc., Mizuho Securities USA LLC, Morgan Stanley & Co. LLC and SMBC Nikko Securities America, Inc., as representatives of the underwriters named in Schedule 1 thereto, with respect to the offering and sale in an underwritten public offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). The Underwriting Agreement is filed as Exhibit 1.1 to this report.

Issuer evidence: On September 8, 2026, The Williams Companies, Inc. (the “Company”) issued a press release announcing that it had priced the Offering (as defined below). A copy of the press release is furnished and attached as Exhibit 99.1 hereto and is incorporated herein by reference.

Supporting evidence: On September 8, 2026, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with Citigroup Global Markets Inc., Mizuho Securities USA LLC, Morgan Stanley & Co. LLC and SMBC Nikko Securities America, Inc., as representatives of the underwriters named in Schedule 1 thereto, with respect to the offering and sale in an underwritten public offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). The Underwriting Agreement is filed as Exhibit 1.1 to this report.

Supporting evidence: On September 8, 2026, the Company entered into an underwriting agreement (the “Underwriting Agreement”) with Citigroup Global Markets Inc., Mizuho Securities USA LLC, Morgan Stanley & Co. LLC and SMBC Nikko Securities America, Inc., as representatives of the underwriters named in Schedule 1 thereto, with respect to the offering and sale in an underwritten public offering (the “Offering”) of $500 million aggregate principal amount of its 5.000% Senior Notes due 2029 (the “2029 Notes”), $1.0 billion aggregate principal amount of its 5.600% Senior Notes due 2033 (the “2033 Notes”), $750 million aggregate principal amount of its 5.800% Senior Notes due 2036 (the “2036 Notes”) and $500 million aggregate principal amount of its 6.400% Senior Notes due 2056 (the “2056 Notes” and, together with the 2029 Notes, the 2033 Notes and the 2036 Notes, the “Notes”). The Underwriting Agreement is filed as Exhibit 1.1 to this report.