Ownership Submission
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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
STEWART ALAN N
   2. Issuer Name and Ticker or Trading Symbol
SOUTHWESTERN ENERGY CO [SWN] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
President Arkansas Western Gas
(Last)
(First)
(Middle)
SUITE 125, 2350 N. SAM HOUSTON PKWY. EAST		 3. Date of Earliest Transaction (Month/Day/Year)
04/30/2008
(Street)

HOUSTON, TX 77032		 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 04/30/2008   M   3,193 A $ 20.34 13,883 D  
Common Stock 04/30/2008   M   7,520 A $ 17.745 21,403 D  
Common Stock 04/30/2008   S   10,713 D $ 42.5 10,690 (1) D  
Common Stock 04/30/2008   J(2)   69.2509 A $ 29.9093 3,083.9061 (3) I By 401(k) Plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

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
Stock Options (Right to Buy) $ 20.335 04/30/2008   M     3,193 12/11/2007 12/11/2013 Common Stock 3,193 $ 0 6,387 (4) D  
Stock Options (Right to Buy) $ 17.745 04/30/2008   M     7,520 12/08/2006 12/08/2012 Common Stock 7,520 $ 0 3,760 (5) D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
STEWART ALAN N
SUITE 125
2350 N. SAM HOUSTON PKWY. EAST
HOUSTON, TX 77032		       President Arkansas Western Gas  

Signatures

 /s/ Melissa D. McCarty, Attorney-in-Fact for Alan N. Stewart   05/01/2008
**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) On March 25, 2008, the common stock of Southwestern Energy Company split 2-for-1, resulting in the reporting person's acquisition of 5,345 additional shares of common stock.
(2) Purchased through the Company's 401(k) Plan from December 1, 2007, through April 29, 2008. The information in this report is based on a plan statement dated as of April 29, 2008.
(3) On March 25, 2008, the common stock of Southwestern Energy Company split 2-for-1, resulting in the reporting person's acquisition of 803.9001 additional shares of common stock indirectly owned through the reporting person's 401(k) Plan.
(4) This option was previously reported as covering 4,790 shares at an exercise price of $40.67 per share, and has been adjusted as a result of a 2-for-1 stock split on March 25, 2008.
(5) This option was previously reported as covering 5,640 shares at an exercise price of $35.49 per share, and has been adjusted as a result of a 2-for-1 stock split on March 25, 2008.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.