X0303 5 2010-12-31 0 0 0000007332 SOUTHWESTERN ENERGY CO SWN 0001103807 HOWARD ROBERT L SUITE 125 2350 N. SAM HOUSTON PARKWAY EAST HOUSTON TX 77032 1 Common Stock 2010-12-17 5 J 0 5195 0 D 7305 I by Robert L. Howard 2009 GRAT; Robert L. Howard, Trustee Common Stock 2010-12-17 5 J 0 5195 0 A 89055 D Common Stock 2010-12-17 5 J 0 4535 0 D 7965 I by Helen C. Howard 2009 GRAT; Helen C. Howard, Trustee Common Stock 2010-12-17 5 J 0 4535 0 A 93590 D Common Stock 22500 I by Helen C. Howard GRAT; Helen C. Howard, Trustee Common Stock 22500 I by Robert L. Howard GRAT; Robert L. Howard Trustee Stock Options (Right to Buy) 3.10 2004-12-31 2013-12-31 Common Stock 64000 64000 D Stock Options (Right to Buy) 6.225 2005-12-09 2011-12-09 Common Stock 13760 13760 D Stock Options (Right to Buy) 17.97 2006-12-13 2012-12-13 Common Stock 5500 5500 D Stock Options (Right to Buy) 20.335 2007-12-11 2013-12-11 Common Stock 6000 6000 D Stock Options (Right to Buy) 27.18 2008-12-13 2014-12-13 Common Stock 6000 6000 D Stock Options (Right to Buy) 36.22 2011-12-09 2017-12-09 Common Stock 4550 4550 D Stock Options (Right to Buy) 30.68 2009-12-11 2015-12-11 Common Stock 5270 5270 D Stock Options (Right to Buy) 40.73 2010-12-10 2016-12-10 Common Stock 3960 3960 D On December 17, 2010, 5,195 shares of stock held in the Robert L. Howard 2009 GRAT (the "RLH 2009 GRAT") were transferred out of the RLH 2009 GRAT and registered in the name of the reporting person and his spouse. Therefore, the reporting person now has direct beneficial ownership of the stock. On December 17, 2010, 4,535 shares of stock held in the Helen C. Howard 2009 GRAT (the "HCH 2009 GRAT") were transferred out of the HCH 2009 GRAT and registered in the name of the reporting person and his spouse. Therefore, the reporting person now has direct beneficial ownership of the stock. /s/ Melissa D. McCarty, Attorney-in-fact for Mr. Howard 2011-02-14