Sec Form 4 Filing - Hency Dee W @ SOUTHWESTERN ENERGY CO - 2012-09-12

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 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: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person Hency Dee W 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) Retired Senior Vice President (Last) (First) (Middle) SUITE 125, 2350 N. SAM HOUSTON PARKWAY EAST 3. Date of Earliest Transaction (MM/DD/YY) 09/12/2012 (Street) HOUSTON, TX77032 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 09/12/2012 S 50,000 D $ 34.8603 ( 1 ) 45,586 I By Spouse Common Stock 09/13/2012 J( 2 ) 9.2109 A $ 29.4356 19,189.7174 I By 401(k) Plan Common Stock 121,866 D Common Stock 800 I By Child

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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) $ 27.18 12/13/2008 12/13/2014 Common Stock 1,954 1,954 D Stock Options (Right to Buy) $ 30.68 12/11/2009 12/11/2015 Common Stock 3,088 3,088 D Stock Options (Right to Buy) $ 36.22 12/09/2011 12/09/2017 Common Stock 2,260 2,260 D Stock Options (Right to Buy) $ 40.73 12/10/2010 12/10/2016 Common Stock 4,520 4,520 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Hency Dee W SUITE 125 2350 N. SAM HOUSTON PARKWAY EAST HOUSTON, TX77032 Retired Senior Vice President Signatures /s/ Melissa D. McCarty, Attorney-in-Fact for Mr. Hency 09/14/2012 Signature of Reporting Person Date

Explanation of Responses:

( 1 )This transaction was executed in multiple trades at prices ranging from $34.8323 to $35.06. The price reported above in Column 4 reflects the weighted average sale price. The reporting person hereby undertakes to provide, upon written request, to the SEC staff, the issuer, or a security holder of the issuer, full information regarding the number of shares and prices at which the transactions were effected. ( 2 )Purchased through the Company's 401(k) plan from May 1, 2012, through May 30, 2012. The information in this report is based on a plan statement dated as of September 13, 2012.

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).

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