X0202 4 2005-12-08 0000007332 SOUTHWESTERN ENERGY CO SWN 0001103813 KERLEY GREGORY D 2350 N. SAM HOUSTON PARKWAY EAST SUITE 300 HOUSTON TX 77032 0 1 0 0 Exec. VP & CFO Common Stock 2005-11-03 5 A 0 E 30 0 A 926994 D Common Stock 2005-12-08 4 A 0 6670 0 A 933664 D Common Stock 2005-12-12 4 M 0 34904 2.865 A 968568 D Common Stock 2005-12-08 4 J 0 180.2469 29.4243 A 11659.3877 I By 401(k) plan Common Stock 25794.8632 I By Nonqualified Retirement Plan Stock Options (Right to buy) 1.5 2000-12-16 2009-12-16 Common Stock 72996 72996 D Stock Options (Right to buy) 1.8594 2001-12-14 2010-12-14 Common Stock 399996 399996 D Stock Options (Right to buy) 5.285 2004-12-10 2013-12-10 Common Stock 127280 127280 D Stock Options (Right to buy) 12.45 2005-12-09 2011-12-09 Common Stock 59360 59360 D Stock Options (Right to buy) 35.49 2005-12-08 4 A 0 23710 A 2006-12-08 2012-12-08 Common Stock 23710 23710 D Stock Options (Right to buy) 2.865 2005-12-12 4 M 0 34904 2.865 D 2003-12-11 2012-12-11 Common Stock 34904 76040 D This option was previously reported as covering 36,498 shares at an exercise price of $3.00 per share, and has been adjusted as a result of a 2-for-1 stock split on November 3, 2005. Purchased through the Company's 401(k) plan from June 27, 2005, through November 29, 2005. Employee service award granted for 15 years of service with the Company. On November 3, 2005, the common stock of Southwestern Energy Company split 2-for-1, resulting in the reporting person's acquisition of 463,482 additional shares of common stock. This option was previously reported as covering 55,472 shares at an exercise price of $5.73 per share, and has been adjusted as a result of a 2-for-1 stock split on November 3, 2005. 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. This option was previously reported as covering 31,820 shares at an exercise price of $21.14 per share, and has been adjusted as a result of a 2-for-1 stock split on May 20, 2005, and a 2-for-1 stock split on November 3, 2005. On November 3, 2005, the common stock of Southwestern Energy Company split 2-for-1, resulting in the reporting person's acquisition of 12,897.4316 additional shares of common stock indirectly owned by the reporting person through the Company's Nonqualified Retirement Plan. On November 3, 2005, the common stock of Southwestern Energy Company split 2-for-1, resulting in the reporting person's acquisition of 5,739.5704 additional shares of common stock indirectly owned by the reporting person through the Company's 401(k) plan. This option was previously reported as covering 14,840 shares at an exercise price of $49.80 per share, and has been adjusted as a result of a 2-for-1 stock split on May 20, 2005, and a 2-for-1 stock slit on November 3, 2005. This option was previously reported as covering 99,999 shares at an exercise price of $7.4375 per share, and has been adjusted as a result of a 2-for-1 stock split on May 20, 2005, and a 2-for-1 stock split on November 3, 2005. Restricted stock and options granted in consideration of services as an officer. Melissa D. McCarty, Attorney-in-Fact 2005-12-12