X0303 4 2011-04-29 0000731802 ATMOS ENERGY CORP ATO 0001181021 GREGORY LOUIS P 5430 LBJ FREEWAY 1800 III LINCOLN CENTRE DALLAS TX 75240 1 Sr VP and General Counsel Common Stock 2011-04-29 4 F 0 1125 34.74 D 36450 D Common Stock 9379.97 I By Retirement Savings Plan and Trust Shares withheld pursuant to tax withholding obligation under the 1998 Long-Term Incentive Plan of the Company. To update end of period holdings as of 3/31/2011 under the Atmos Energy Corporation Retirement Savings Plan and Trust (formerly known as the Atmos Energy Corporation Employee Stock Ownership Plan and Trust.) /s/Dwala Kuhn by POA 2011-05-02