Atmos Energy Files Preliminary Prospectus Supplement for Senior Notes Offering

Offering Overview

Atmos Energy Corporation filed a preliminary prospectus supplement pursuant to Rule 424(b)(5) under Registration No. 333-283563, initiating a public offering of Senior Notes.

Key Terms of the Offering

• Issuer: Atmos Energy Corporation
• Security: Senior Notes
• Principal Amount & Coupon: Subject to market pricing and completion
• Ranking: Unsecured senior obligations ranking equally with all existing and future unsubordinated debt, effectively subordinated to secured debt and subsidiary obligations
• Denominations: Minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof
• Redemption: Optional make-whole redemption prior to a par call date, and at 100% of principal plus accrued interest thereafter
• Underwriters / Book-Runners: BNP Paribas, Crédit Agricole CIB, and U.S. Bancorp

Recent Developments & Financial Summary

• Dividend Declaration: On August 5, 2026, the Board of Directors declared a quarterly dividend of $1.00 per share, paid September 8, 2026 to holders of record August 24, 2026.
• Nine Months Ended June 30, 2026 Highlights:
  • Operating Revenues: $4,184.0M (vs. $3,965.3M in prior year period)
  • Operating Income: $1,600.0M (vs. $1,340.5M in prior year period)
  • Net Income: $1,227.6M (vs. $1,023.9M in prior year period)
  • Diluted EPS: $7.33 (vs. $6.40 in prior year period)
  • Total Debt: $10,323.9M as of June 30, 2026