SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
Hency Dee W
(Last) (First) (Middle)
2350 N. SAM HOUSTON PKWY EAST
SUITE 125
(Street)
HOUSTON TX 77032
(City) (State) (Zip)
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)
Vice President & CIO
3. Date of Earliest Transaction (Month/Day/Year)
12/12/2007
4. If Amendment, Date of 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
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 12/12/2007 M 5,800 A $2.41 53,211 D
Common Stock 12/12/2007 M 22,584 A $2.865 75,795 D
Common Stock 12/12/2007 M 6,616 A $5.285 82,411 D
Common Stock 12/12/2007 S 300 D $54.36 82,111 D
Common Stock 12/12/2007 S 800 D $54.38 81,311 D
Common Stock 12/12/2007 S 500 D $54.41 80,811 D
Common Stock 12/12/2007 S 600 D $54.44 80,211 D
Common Stock 12/12/2007 S 100 D $54.45 80,111 D
Common Stock 12/12/2007 S 100 D $54.4542 80,011 D
Common Stock 12/12/2007 S 900 D $54.46 79,111 D
Common Stock 12/12/2007 S 500 D $54.48 78,611 D
Common Stock 12/12/2007 S 200 D $54.52 78,411 D
Common Stock 12/12/2007 S 500 D $54.55 77,911 D
Common Stock 12/12/2007 S 500 D $54.56 77,411 D
Common Stock 12/12/2007 S 200 D $54.58 77,211 D
Common Stock 12/12/2007 S 100 D $54.62 77,111 D
Common Stock 12/12/2007 S 3,000 D $54.63 74,111 D
Common Stock 12/12/2007 S 1,200 D $54.64 72,911 D
Common Stock 12/12/2007 S 1,200 D $54.66 71,711 D
Common Stock 12/12/2007 S 2,900 D $54.67 68,811 D
Common Stock 12/12/2007 S 800 D $54.68 68,011 D
Common Stock 12/12/2007 S 2,400 D $54.7 65,611 D
Common Stock 12/12/2007 S 100 D $54.8 65,511 D
Common Stock 12/12/2007 S 400 D $54.81 65,111 D
Common Stock 12/12/2007 S 100 D $54.83 65,011 D
Common Stock 12/12/2007 S 600 D $54.85 64,411 D
Common Stock 12/12/2007 S 600 D $54.96 63,811 D
Common Stock 12/13/2007 J(1) 46.3038 A $44.116 9,394.4708(2) I by 401(k) plan
Common Stock 400 I by Child
Common Stock 124,286 I by Spouse
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 Securities Underlying Derivative Security (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: 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) $12.45 12/09/2005 12/09/2011 Common Stock 7,360 7,360 D
Stock Options (Right to buy) $35.49 12/08/2006 12/08/2012 Common Stock 4,400 4,400 D
Stock Options (Right to buy) $40.67 12/11/2007 12/11/2013 Common Stock 4,160 4,160 D
Stock Options (Right to buy) $2.41 12/12/2007 M 5,800 12/20/2002 12/20/2011 Common Stock 5,800 $2.41 0 D
Stock Options (Right to buy) $2.865 12/12/2007 M 22,584 12/11/2003 12/11/2012 Common Stock 22,584 $2.865 0 D
Stock Options (Right to buy) $5.285 12/12/2007 M 6,616 12/10/2004 12/10/2013 Common Stock 6,616 $5.285 15,464 D
Explanation of Responses:
1. Purchased through the Company's 401(k) plan from April 11, 2007, through December 12, 2007. The information in this report is based on a plan statement dated as of November 30, 2007.
2. 9,025 shares of common stock indirectly held by the reporting person in the Southwestern Energy Company 401(k) Plan (the "401(k) Plan") investment fund were previously reported in Table 1 as a non-derivative security directly owned by the reporting person. An adjustment has been made to reflect the total common stock indirectly held in the 401(k) Plan investment fund on behalf of the insider.
Melissa D. McCarty, Attorney-in-Fact for Dee W. Hency 12/13/2007
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
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