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): November 12, 2025

TARGA RESOURCES CORP.

(Exact name of registrant as specified in its charter)

Delaware

001-34991

20-3701075

(State or other jurisdiction of

incorporation or organization)

(Commission
File Number)

(I.R.S. Employer
Identification No.)

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):

☐	Written communication pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐	Pre-commencement communication pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐	Pre-commencement communication pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

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

Title of each class

Trading

symbol(s)

Name of each exchange
on which registered

Common stock

TRGP

New York Stock Exchange

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. ☐

Item 1.01

Entry into a Material Definitive Agreement.

On November 12, 2025, 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 2029 (the “2029 Notes”) and (ii) $1.0 billion aggregate principal amount of the Company’s 5.400% Senior Notes due 2036 (the “2036 Notes,” and, together with the 2029 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 Twelfth Supplemental Indenture, dated as of November 12, 2025 (the “Twelfth 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 a portion of the net proceeds from the Offering to redeem the 6.875% Senior Notes due 2029 (the “6.875% 2029 Notes”) issued by Targa Resources Partners LP and to use the remaining net proceeds 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 November 6, 2025, relating to the Securities (the “Prospectus Supplement”), filed with the U.S. Securities and Exchange Commission on November 10, 2025. 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 Twelfth 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.

Item 2.03

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.

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

Item 9.01

Financial Statements and Exhibits.


4.1		Indenture, dated as of April 6, 2022, among Targa Resources Corp., as issuer, the guarantors named therein and U.S. Bank Trust Company, National Association, as trustee (incorporated by reference to Exhibit 4.1 to Targa Resources Corp.’s Current Report on Form 8-K filed April 6, 2022 (File No. 001-34991)).

4.2		Twelfth Supplemental Indenture, dated as of November 12, 2025, among Targa Resources Corp., as issuer, the guarantors named therein and U.S. Bank Trust Company, National Association, as trustee.

4.3		Form of Notes (included in Exhibit 4.2 hereto).

5.1		Opinion of Vinson & Elkins L.L.P. regarding the legality of the Securities.

23.1		Consent of Vinson & Elkins L.L.P. (included in Exhibit 5.1 hereto).

104		Cover Page Interactive Data File (embedded within the Inline XBRL document).

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.

TARGA RESOURCES CORP.

Dated: November 12, 2025

/s/ William A. Byers

William A. Byers

Chief Financial Officer

Targa Resources Corp. 8-K