Kinder Morgan, Inc.

On July 28, 2026, Kinder Morgan, Inc. ("KMI") entered into an underwriting agreement (the "Underwriting Agreement") with BofA Securities, Inc., CIBC World Markets Corp., PNC Capital Markets LLC, RBC Capital Markets, LLC and Wells Fargo Securities, LLC, as representatives of the several underwriters named therein, pursuant to which KMI agreed to sell (i) $1,150,000,000 aggregate principal amount of KMI's 5.550% Senior Notes due 2036 (the "2036 Notes") and (ii) $600,000,000 aggregate principal amount of 6.150% Senior Notes due 2056 (the "2056 Notes"and, together with the 2036 Notes, the"Notes").

The Notes will be issued pursuant to an Indenture, dated as of March 1, 2012, between KMI and U.S. Bank Trust Company, National Association (successor in interest to U.S. Bank National Association), as trustee. The 2036 Notes will mature on August 1, 2036. The 2056 Notes will mature on August 1, 2056. Interest on the Notes will be payable semi-annually in arrears on February 1 and August 1 of each year, beginning on February 1, 2027. Interest on the Notes will accrue from August 6, 2026. KMI may redeem all or a part of the Notes at any time at the applicable redemption prices.

Upon the occurrence of an event of default under the Indenture, which includes payment defaults, defaults in the performance of affirmative and negative covenants and bankruptcy and insolvency related defaults, the obligations of KMI under the Notes may be accelerated, in which case the entire principal amount of the Notes would be immediately due and payable.

The foregoing description of the Underwriting Agreement does not purport to be complete and is qualified in its entirety by reference to the Underwriting Agreement, a copy of which is filed as Exhibit 1.1 to this Current Report on Form 8-K and incorporated herein by reference.

KMI expects to use the proceeds from the offering of the Notes for general corporate purposes, including repayment of commercial paper borrowings and refinancing upcoming debt maturities. The underwriters and their related entities have, from time to time, engaged in commercial and investment banking transactions with KMI and its affiliates and provided financial advisory services for KMI and its affiliates in the ordinary course of their business, and may do so in the future. The underwriters and their related entities have received and in the future will receive customary compensation and expense reimbursement for these commercial and investment banking transactions and financial advisory services.

Item 9.01. Financial Statements and Exhibits.

1.1 Underwriting Agreement, dated July 28, 2026, by and among Kinder Morgan, Inc. and the underwriters party thereto.

104 Cover Page Interactive Data File pursuant to Rule 406 of Regulation S-T formatted in iXBRL (Inline Extensible Business Reporting Language).