ATO Atmos Energy Corp

Atmos Energy Corporation (NYSE: ATO) said today that a public offering of 5,500,000 shares of its common stock was priced at $31.50 per share to yield gross proceeds to the company of approximately $173.3 million. The company has granted the underwriters an option for 30 days to purchase up to an additional 825,000 shares at the public offering price. Atmos Energy intends to use the net proceeds of approximately $166.8 million (excluding any net proceeds Atmos Energy may receive upon the exercise of the option granted to the underwriters) from this offering to repay existing indebtedness under its commercial paper program. Lehman Brothers and Goldman, Sachs & Co. were the joint book-running managers for the offering. Banc of America Securities LLC, JP Morgan, Merrill Lynch & Co., SunTrust Robinson Humphrey and Wachovia Securities served as co-managers. The offering of the shares of common stock may be made only by means of a prospectus supplement and the accompanying prospectus. A copy of the final prospectus supplement and the accompanying prospectus may be obtained from Lehman Brothers or Goldman, Sachs & Co. at the following: Lehman Brothers c/o ADP Financial Services Integrated Distribution Services 1155 Long Island Avenue Edgewood, NY 11717 Monica_Castillo@adp.com Goldman Sachs & Co.Prospectus Department85 Broad StreetNew York, NY 10004 This news release does not constitute an offer to sell any securities under the offering.