X0303 4 2011-03-04 0 0000893538 SM Energy Co SM 0001442995 Zubieta Dennis A. 1775 SHERMAN STREET SUITE 1200 DENVER CO 80203 0 1 0 0 VP-Engineering & Evaluation Common Stock; $.01 Par Value 2011-03-04 4 M 0 2300 11.95 A 16388 D Common Stock; $.01 Par Value 2011-03-04 4 S 0 2300 73.05 D 14088 D Common Stock; $.01 Par Value 2011-03-07 4 M 0 888 11.95 A 14976 D Common Stock; $.01 Par Value 2011-03-07 4 M 0 3186 12.525 A 18162 D Common Stock; $.01 Par Value 2011-03-07 4 M 0 3188 12.5 A 21350 D Common Stock; $.01 Par Value 2011-03-07 4 S 0 7262 73.05 D 14088 D Stock Option (Right to Buy) 11.95 2011-03-04 4 M 0 2300 0 D 2012-09-30 Common Stock 2300 888 D Stock Option (Right to Buy) 11.95 2011-03-07 4 M 0 888 0 D 2012-09-30 Common Stock 888 0 D Stock Option (Right to Buy) 12.525 2011-03-07 4 M 0 3186 0 D 2013-03-31 Common Stock 3186 0 D Stock Option (Right to Buy) 12.50 2011-03-07 4 M 0 3188 0 D 2012-12-31 Common Stock 3188 0 D The stock option vested in four equal installments on September 30, 2002, 2003, 2004 and 2005. The stock option vested as follows: 797 shares on March 31, 2003, 797 shares on September 30, 2003, and 796 shares on September 30, 2004 and 2005. The stock option vested as follows: 797 shares on December 31, 2002, 797 shares on September 30, 2003, 2004 and 2005. Karin M. Writer (Attorney-In-Fact) 2011-03-08