Targa Resources Corp — 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): March 2, 2026

TARGA RESOURCES CORP.

(Exact name of registrant as specified in its charter)

811 Louisiana St, Suite 2100

Houston, TX 77002

(Address of principal executive office and Zip Code)

(713) 584-1000

(Registrant’s telephone number, including area code)

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 (see General Instruction A.2. below):

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 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

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 March 2, 2026, Targa Resources Corp. (the “Company”), along with certain of its subsidiaries (the “Subsidiary Guarantors”), completed the previously announced underwritten public offering (the “Offering”) of (i) $750.0 million aggregate principal amount of the Company’s 4.350% Senior Notes due 2031 (the “2031 Notes”) and (ii) $750.0 million aggregate principal amount of the Company’s 6.050% Senior Notes due 2056 (the “2056 Notes,” and, together with the 2031 Notes, the “Notes”).

The Notes are fully and unconditionally guaranteed, jointly and severally, on a senior unsecured basis by the Subsidiary Guarantors (the “Guarantees,” and, together with the Notes, the “Securities”) so long as such Subsidiary Guarantors satisfy certain conditions. The Securities were issued pursuant to the Indenture, dated as of April 6, 2022 (the “Base Indenture”), as supplemented by that certain Thirteenth Supplemental Indenture, dated as of March 2, 2026 (the “Thirteenth Supplemental Indenture,” and, together with the Base Indenture, the “Indenture”), among the Company, the Subsidiary Guarantors and U.S. Bank Trust Company, National Association, as trustee (the “Trustee”).

The Company expects to use the net proceeds from the Offering for general corporate purposes, including to repay borrowings under the Company’s unsecured commercial paper note program, to repay other indebtedness, to repurchase or redeem securities or to fund capital expenditures, additions to working capital or investments in its subsidiaries.

The Offering was registered under the Securities Act of 1933, as amended (the “Securities Act”), pursuant to a shelf registration statement on Form S-3ASR (File No. 333-286012) of the Company (as may be amended from time to time, the “Registration Statement”), as supplemented by the Prospectus Supplement, dated February 25, 2026, relating to the Securities (the “Prospectus Supplement”), filed with the U.S. Securities and Exchange Commission on February 26, 2026. A legal opinion related to the Securities is included as Exhibit 5.1 hereto.

The terms of the Securities and the Indenture are further described in the Registration Statement and the Prospectus Supplement under the captions “Description of Debt Securities” and “Description of the Notes,” respectively. Such descriptions do not purport to be complete and are qualified in their entirety by reference to the Base Indenture and the Thirteenth Supplemental Indenture, copies of which are filed as Exhibit 4.1 and Exhibit 4.2, respectively, to this Current Report on Form 8-K and incorporated herein by reference.

The Trustee and certain of its affiliates have from time to time performed, and may in the future perform, various financial advisory, commercial and investment banking services for the Company or the Subsidiary Guarantors for which they received or will receive customary fees and expenses. U.S. Bancorp Investments, Inc., one of the underwriters, is an affiliate of the Trustee under the Indenture.

The information contained in Item 1.01 is incorporated by reference into this Item 2.03.

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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 thereunto duly authorized.

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