X0303 4 2008-07-10 0000007332 SOUTHWESTERN ENERGY CO SWN 0001103813 KERLEY GREGORY D SUITE 125 2350 N. SAM HOUSTON PARKWAY EAST HOUSTON TX 77032 1 Executive Vice President & CFO Common Stock 2008-07-10 4 M 0 16064 6.23 A 1414902 D Common Stock 2008-07-10 4 M 0 4 1.43 A 1414906 D Common Stock 2008-07-10 4 J 0 80.3412 40.079 A 24954.8334 I By 401(k) Plan Stock Options (Right to Buy) 6.225 2008-07-10 4 M 0 16064 0 D 2005-12-09 2011-12-09 Common Stock 16064 102656 D Stock Options (Right to Buy) 1.435 2008-07-10 4 M 0 4 0 D 2003-12-11 2012-12-11 Common Stock 4 152076 D On March 25, 2008, the common stock of Southwestern Energy Company split 2-for-1, resulting in an increase of 699,419 shares of common stock directly held by the reporting person. This option was previously reported as covering 59,360 stock options at an exercise price of $12.45 per share, but was adjusted to reflect the 2-for-1 stock split on March 25, 2008. This option was previously reported as covering 76,040 stock options at an exercise price of $2.865 per share, but was adjusted to reflect the 2-for-1 stock split on March 25, 2008. Purchased through the Company's 401(k) plan from February 29, 2008, thru July 10, 2008. The information in this report is based on a plan statement dated July 10, 2008. On March 25, 2008, the common stock of Southwestern Energy Company split 2-for-1, resulting in an increase of 12,437.2461 shares of common stock indirectly held by the reporting person in the Company's 401(k) Plan. /s/ Melissa D. McCarty, Attorney-in-fact for Gregory D. Kerley 2008-07-11