so-20260909

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)			September 9, 2026

Commission
File Number

Registrant,
State of Incorporation,
Address and Telephone Number

I.R.S. Employer
Identification No.

1-14174

Southern Company Gas

58-2210952

(A Georgia Corporation)

725 W. Peachtree Street, N.E.

Atlanta, Georgia 30308

(404) 584-4000

The name and address of the registrant have not changed since the 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:


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

None

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. ☐


Item 8.01.			Other Events.

On September 9, 2026, Southern Company Gas (“GAS”) and Southern Company Gas Capital Corporation (“GAS Capital”) entered into an Underwriting Agreement covering the issue and sale of $550,000,000 aggregate principal amount of GAS Capital’s Series 2026A 5.00% Senior Notes due October 1, 2029 (the “Series 2026A Senior Notes”) and the related guarantee thereof by GAS. The Series 2026A Senior Notes and the related guarantee thereof by GAS were registered under the Securities Act of 1933, as amended, pursuant to the shelf registration statement (Registration Nos. 333-285115 and 333-285115-01) of GAS and GAS Capital.


Item 9.01.			Financial Statements and Exhibits.


(d) Exhibits.
1.1			Underwriting Agreement relating to the Series 202 6 A Senior Notes, dated September 9 , 2026 , among GAS, GAS Capital and BofA Securities, Inc ., MUFG Securities Americas Inc., PNC Capital Markets LLC and Wells Fargo Securities, LLC , as representatives of the several Underwriters named in Schedule I thereto.

4.1			Form of the Series 2026A Senior Note.

4.3			Form of Guarantee related to the Series 2026A Senior Notes.

5.1			Opinion of Troutman Pepper Locke LLP relating to the Series 2026A Senior Notes.

5.2			Opinion of Balch & Bingham LLP relating to the Series 2026A Senior Notes.

8.1			Tax Opinion of Troutman Pepper Locke LLP relating to the Series 2026A Senior Notes.

23.1			Consent of Troutman Pepper Locke LLP (included in Exhibit 5.1 above).

23.2			Consent of Balch & Bingham LLP (included in Exhibit 5.2 above).

23.3			Consent of Troutman Pepper Locke LLP (included in Exhibit 8.1 above).

104			Cover Page Interactive Data File – The cover page iXBRL tags are embedded within the inline XBRL document.

SIGNATURE

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.

Date: September 14, 2026

SOUTHERN COMPANY GAS

By:

/s/ Melissa K. Caen

Melissa K. Caen
Assistant Secretary

ATTACHMENTS / EXHIBITS

ATTACHMENTS / EXHIBITS