1. Name and Address of Reporting Person Kerley, Greg D. 2350 N. Sam Houston Parkway East Suite 300 Houston, TX 77032 USA 2. Issuer Name and Ticker or Trading Symbol Southwestern Energy Company (SWN) 3. IRS or Social Security Number of Reporting Person (Voluntary) 4. Statement for Month/Day/Year 12/13/2002 5. If Amendment, Date of Original (Month/Day/Year) 6. Relationship of Reporting Person(s) to Issuer (Check all applicable) ( ) Director ( ) 10% Owner (X) Officer (give title below) ( ) Other (specify below) Exec. VP & CFO 7. 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 |2. Trans- |2A.Execu- |3. Trans-|4. Securities Acquired (A)|5. Amount of |6. Owner- |7. Nature | | | action | action | action| or Disposed of (D) |Securities | ship | of In- | | | Date | Date | Code | |Beneficially | Form: | direct | | | | | | |Owned | Direct | Bene- | | | (Month/ | (Month/ | | |Following | (D) or | ficial | | | Day/ | Day/ +-----+---+-----------+---+----------+Reported | Indirect| Owner- | | | Year) | Year) |Code |V |Amount |A/D|Price |Transaction(s)| (I) | ship | +------------------------------+----------+----------+-----+---+-----------+---+----------+--------------+-----------+------------+ Common Stock 12/11/2002 A 19890 A $0.0000 86384 DTABLE II -- Derivative Securities Acquired, Disposed of, or Beneficially Owned +----------+--------+-------+-------+---------+-----------+---------------------+----------------+----------+-------+-------+------+ |1. |2. |3. |3A. |4. |5. |6. |7. |8. |9. |10. |11. | | | | | | | | | | |Number |Owner- | | | | | | | | | | | |of |ship | | | | | | | | | | | |Deriv- |Form of| | | | | | | | | |Title and Amount| |ative |Deriv- | | | | | | | | | |of Underlying | |Secur- |ative |Nature| | |Conver- |Trans- |Execu- | |Number of | |Securities | |ities |Secur- |of | | |sion or |action |tion | |Derivative |Date Exercisable +-------+--------+ |Benefi-|ity: |In- | | |Exercise|Date |Date | |Securities |and Expiration Date | |Amount | |cially |Direct |direct| | |Price of| | |Transac- |Acquired(A)|(Month/Day/Year) | |or | |Owned |(D) or |Bene- | |Title of |Deriv- |(Month/|(Month/|tion Code|Disposed(D)+----------+----------+ |Number |Price of | |In- |ficial| |Derivative|ative | Day/ | Day/ +------+--+-----+-----+Date Exer-|Expira- | |of |Derivative| |direct |Owner-| |Security |Security|Year) |Year) |Code |V |(A) |(D) |cisable |tion Date |Title |Shares |Security | |(I) |ship | +----------+--------+-------+-------+------+--+-----+-----+----------+----------+-------+--------+----------+-------+-------+------+ Stock $6 12/16/2009 Common 68250 D Options Stock (Right to buy) Stock $7.3125 09/11/2008 Common 15674 D Options Stock (Right to buy) Stock $7.4375 12/14/2010 Common 100000 D Options Stock (Right to buy) Stock $9.64 12/20/2011 Common 18750 D Options Stock (Right to buy) Stock $11.46 12/11/2 A 37136 12/11/2003 12/11/2012 Common 37136 $0.0000 D Options 002 Stock (Right to buy) Stock $11.46 12/11/2 A 12194 12/11/2003 12/11/2012 Common 12194 $0.0000 49330 D Options 002 Stock (Right to buy) Stock $12.5 12/17/2007 Common 11100 D Options Stock (Right to buy) Stock $12.8125 12/16/2002 Common 3000 D Options Stock (Right to buy) Stock $13.375 12/08/2005 Common 3750 D Options Stock (Right to buy) Stock $14.125 02/27/2007 Common 200 D Options Stock (Right to buy) Stock $14.625 12/14/2004 Common 50000 D Options Stock (Right to buy) Stock $14.75 12/11/2006 Common 4500 D Options Stock (Right to buy) Stock $17.125 12/14/2003 Common 3247 D Options Stock (Right to buy) Explanation of Responses: SIGNATURE OF REPORTING PERSON /s/ Kathy Harriell DATE 12/13/2002 Granted in consideration of services as an officer. Option becomes exercisable in three equal annual installments beginning on the first anniversary of the grant date specified in Column 3 or immediately upon a change in control.