Atmos Energy Corporation CFO to Discuss Hurricane's Effects at Lehman Brothers Energy Power Conference on Sept. 7; Company Maintains Fiscal 2005 Earnings Estimate.

DALLAS -- J. Patrick Reddy, senior vice president and chief financial officer of Atmos Energy Corporation (NYSE: ATO), who will be speaking at the Lehman Brothers Energy Power Conference on September 7, 2005, at 7:45 a.m. EDT, will discuss the effects of Hurricane Katrina on Atmos Energy's natural gas operations in Louisiana and Mississippi and the company's restoration efforts that are under way.

Atmos Energy is the largest natural gas utility in Louisiana and Mississippi, serving approximately 654,000 utility customers in the two states. Company officials estimate that Hurricane Katrina has affected service to approximately 230,000 customers. The worst affected areas are located in the Louisiana parishes of Jefferson, St. Tammany, St. Bernard and Plaquemines.

Reddy's presentation will reaffirm Atmos Energy's earnings guidance for fiscal 2005. He will highlight the company's recent accomplishments, review its key strategies for growth and outline its expectations for financial performance. As previously disclosed, Atmos Energy is projecting to earn in the middle of its established guidance of $1.65 to $1.75 per diluted share for the 2005 fiscal year. Because the company's operations are seasonal, operating results for the nine months ended June 30, 2005, are not indicative of the results to be expected for the 12 months ended September 30, 2005.

A live webcast of this presentation will be broadcast on Atmos Energy's Web site at www.atmosenergy.com. The presentation will be archived for 30 days.

The matters discussed in this news release may contain "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933 or Section 21E of the Securities Exchange Act of 1934. All statements other than statements of historical fact included in this news release are forward-looking statements made in good faith by the Company and are intended to qualify for the safe harbor from liability established by the Private Securities Litigation Reform Act of 1995. When used in this news release or in any of the Company's other documents or oral presentations, the words "anticipate," "believes," "estimate," "expects," "forecast," "goal," "intends," "objective," "plans," "projection," "seek," "strategy" or similar words are intended to identify forward-looking statements. Such forward-looking statements are subject to risks and uncertainties that could cause actual results to differ materially from those discussed in this news release, including the continued successful integration of the Company's acquisition of the operations of TXU Gas, the Company's ability to continue to access the capital markets and the other factors discussed in the Company's SEC filings. These factors include the risks and uncertainties discussed in the Company's Form 10-K for the fiscal year ended September 30, 2004 and the Company's Form 10-Q for the three and nine months ended June 30, 2005. Although the Company believes these forward-looking statements to be reasonable, there can be no assurance that they will approximate actual experience or that the expectations derived from them will be realized. The Company undertakes no obligation to update or revise forward-looking statements.

Atmos Energy Corporation, headquartered in Dallas, is the country's largest natural gas-only distributor, serving about 3.2 million gas utility customers. Atmos Energy's utility operations serve more than 1,500 communities in 12 states from the Blue Ridge Mountains in the East to the Rocky Mountains in the West. Atmos Energy's non-utility operations, organized under Atmos Energy Holdings, Inc., operate in 22 states. They provide natural gas marketing and procurement services to industrial, commercial and municipal customers and manage company-owned natural gas storage and pipeline assets, including one of the largest intrastate natural gas pipelines in Texas. For more information, visit www.atmosenergy.com.