FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * GREGORY LOUIS P   2. Issuer Name and Ticker or Trading Symbol ATMOS ENERGY CORP [ATO] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Sr VP and General Counsel (Last) (First) (Middle) 5430 LBJ FREEWAY, 1800 III LINCOLN CENTRE 3. Date of Earliest Transaction (Month/Day/Year) 02/15/2005 (Street) DALLAS, TX 75240 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 02/14/2005   M   20,000 A $ 19.66 41,959 D   Common Stock 02/14/2005   M   7,665 A $ 21.58 49,624 D   Common Stock 02/14/2005   M   6,134 A $ 21.23 55,758 D   Common Stock 02/14/2005   S   20,000 D $ 28.8196 35,758 D   Common Stock 02/14/2005   S   13,799 D $ 28.8112 21,959 D   Common Stock               2,356.24 (1) I ESOP Trust

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Employee Stock Option (right to buy)

$ 19.66

02/14/2005

M

20,000

(2)

09/04/2010

Common Stock

20,000

$ 0

0

D

Employee Stock Option (right to buy)

$ 21.58

02/14/2005

M

7,665

(3)

11/11/2012

Common Stock

7,665

$ 0

3,832

D

Employee Stock Option (right to buy)

$ 21.23

02/14/2005

M

6,134

(4)

03/10/2013

Common Stock

6,134

$ 0

12,266

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
GREGORY LOUIS P 5430 LBJ FREEWAY 1800 III LINCOLN CENTRE DALLAS, TX 75240			Sr VP and General Counsel

Signatures

Dwala Kuhn by POA		02/15/2005
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	To update end of period holdings as of 1/31/05 under the Atmos Energy Corporation Retirement Savings Plan and Trust (formerly kno wn as the Atmos Energy Corporation Employee Stock Ownership Plan and Trust.)
(2)	The options vest in three equal annual installments beginning on September 5, 2001.
(3)	The options vest in three equal annual installments beginning on November 12, 2003.
(4)	The options vest in three equal annual installments beginning on March 11, 2004.

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