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
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(Print or Type Responses)
1. Name and Address of Reporting Person *
KERLEY GREGORY D
   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)
Executive Vice President & CFO
(Last)
(First)
(Middle)
2350 N. SAM HOUSTON PKWY EAST, SUITE 125		 3. Date of Earliest Transaction (Month/Day/Year)
12/11/2007
(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 12/11/2007   S   2,200 D $ 53.92 891,109 D  
Common Stock 12/11/2007   S   100 D $ 53.925 891,009 D  
Common Stock 12/11/2007   S   1,300 D $ 53.93 889,709 D  
Common Stock 12/11/2007   S   700 D $ 53.94 889,009 D  
Common Stock 12/11/2007   S   1,100 D $ 53.95 887,909 D  
Common Stock 12/11/2007   S   800 D $ 53.96 887,109 D  
Common Stock 12/11/2007   S   600 D $ 53.97 886,509 D  
Common Stock 12/11/2007   S   100 D $ 53.975 886,409 D  
Common Stock 12/11/2007   S   100 D $ 53.98 886,309 D  
Common Stock 12/11/2007   S   900 D $ 53.99 885,409 D  
Common Stock 12/11/2007   S   4,100 D $ 54 881,309 D  
Common Stock 12/11/2007   S   1,100 D $ 54.01 880,209 D  
Common Stock 12/11/2007   S   1,600 D $ 54.02 878,609 D  
Common Stock 12/11/2007   S   700 D $ 54.03 877,909 D  
Common Stock 12/11/2007   S   100 D $ 54.035 877,809 D  
Common Stock 12/11/2007   S   1,000 D $ 54.04 876,809 D  
Common Stock 12/11/2007   S   800 D $ 54.05 876,009 D  
Common Stock 12/11/2007   S   100 D $ 54.055 875,909 D  
Common Stock 12/11/2007   S   1,600 D $ 54.06 874,309 D  
Common Stock 12/11/2007   S   200 D $ 54.065 874,109 D  
Common Stock 12/11/2007   S   2,700 D $ 54.07 871,409 D  
Common Stock 12/11/2007   S   100 D $ 54.075 871,309 D  
Common Stock 12/11/2007   S   3,100 D $ 54.08 868,209 D  
Common Stock 12/11/2007   S   1,800 D $ 54.09 866,409 D  
Common Stock 12/11/2007   S   1,300 D $ 54.1 865,109 D  
Common Stock 12/11/2007   S   100 D $ 54.105 865,009 D  
Common Stock 12/11/2007   S   4,000 D $ 54.11 861,009 D  
Common Stock 12/12/2007   J(1)   114.3716 A $ 42.5169 12,411.4809 I By 401(k) plan

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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
Phantom Stock (2)               (3)   (3) Common Stock 25,794.8632   25,794.8632 (4) D  
Stock Options (Right to buy) $ 1.8594             12/14/2001 12/14/2010 Common Stock 77,992   77,992 D  
Stock Options (Right to buy) $ 2.865             12/11/2003 12/11/2012 Common Stock 76,040   76,040 D  
Stock Options (Right to buy) $ 5.285             12/10/2004 12/10/2013 Common Stock 108,359   108,359 D  
Stock Options (Right to buy) $ 12.45             12/09/2005 12/09/2011 Common Stock 59,360   59,360 D  
Stock Options (Right to buy) $ 35.49             12/08/2006 12/08/2012 Common Stock 23,710   23,710 D  
Stock Options (Right to buy) $ 40.67             12/11/2007 12/11/2013 Common Stock 21,850   21,850 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
KERLEY GREGORY D
2350 N. SAM HOUSTON PKWY EAST
SUITE 125
HOUSTON, TX 77032		       Executive Vice President & CFO  

Signatures

 Melissa D. McCarty, Attorney-in-Fact   12/12/2007
**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).
(4) The common stock held in the Southwestern Energy Company Nonqualified Retirement Plan (the "NQ Plan") investment fund was previously reported in Table 1 as a non-derivative security indirectly owned by the reporting person. Prospectively, the balance of common stock held in the NQ Plan investment fund on behalf of the insider will be reported under Table II as phantom stock.
(2) Each share of phantom stock represents the right to receive the economic equivalent of one share of Southwestern Energy Company common stock.
(1) Purchased through the Company's 401(k) plan from June 15, 2007, through December 12, 2007. The information in this report is based on a plan statement dated as of November 30, 2007.
(3) Shares of phantom stock are payable in cash following termination of the reporting person's employment with Southwestern Energy Company. The reporting person may transfer his phantom stock account into an alternative investment account at any time.

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