X0202 4 2008-03-13 0000007332 SOUTHWESTERN ENERGY CO SWN 0001103813 KERLEY GREGORY D 2350 N. SAM HOUSTON PKWY EAST SUITE 125 HOUSTON TX 77032 0 1 0 0 Executive Vice President & CFO Common Stock 2008-03-13 4 S 0 200 67.42 D 799219 D Common Stock 2008-03-13 4 S 0 100 67.43 D 799119 D Common Stock 2008-03-13 4 S 0 600 67.46 D 798519 D Common Stock 2008-03-13 4 S 0 400 67.49 D 798119 D Common Stock 2008-03-13 4 S 0 400 67.5 D 797719 D Common Stock 2008-03-13 4 S 0 1500 67.51 D 796219 D Common Stock 2008-03-13 4 S 0 1100 67.52 D 795119 D Common Stock 2008-03-13 4 S 0 200 67.53 D 794919 D Common Stock 2008-03-13 4 S 0 1400 67.54 D 793519 D Common Stock 2008-03-13 4 S 0 1800 67.55 D 791719 D Common Stock 2008-03-13 4 S 0 1500 67.56 D 790219 D Common Stock 2008-03-13 4 S 0 2100 67.57 D 788119 D Common Stock 2008-03-13 4 S 0 1600 67.58 D 786519 D Common Stock 2008-03-13 4 S 0 2404 67.59 D 784115 D Common Stock 2008-03-13 4 S 0 2100 67.6 D 782015 D Common Stock 2008-03-13 4 S 0 2515 67.61 D 779500 D Common Stock 2008-03-13 4 S 0 2900 67.62 D 776600 D Common Stock 2008-03-13 4 S 0 1500 67.63 D 775100 D Common Stock 2008-03-13 4 S 0 5100 67.64 D 770000 D Common Stock 2008-03-13 4 S 0 6400 67.65 D 763600 D Common Stock 2008-03-13 4 S 0 6300 67.66 D 757300 D Common Stock 2008-03-13 4 S 0 6000 67.67 D 751300 D Common Stock 2008-03-13 4 S 0 2258 67.68 D 749042 D Common Stock 2008-03-14 4 J 0 25.7652 59.326 A 12437.2461 I By 401(k) plan Purchased through the Company's 401(k) plan from December 12, 2007, through February 29, 2008. The information in this report is based on a plan statement dated March 12, 2008. Melissa D. McCarty, Attorney-in-Fact for Gregory D. Kerley 2008-03-14