Insider Transactions by JOHNSON RODNEY E.

Symbol Relationship Date Transaction Cost # Shares Value($) Total Shares Form 4
SD EVP-Corp Reserves and A & D Apr 01, 2013 Option Exercise $5.22 5,857 30,591 339,345 Apr 03, 2013, 05:14 PM
SD EVP - Corp Reserves & Acquisit Mar 15, 2013 Sale $5.80 83,026 481,576 333,488 Mar 19, 2013, 04:58 PM
SD EVP -Corporate Reserves, A & D Jan 14, 2013 Option Exercise $6.66 5,093 33,919 354,014 Jan 16, 2013, 06:40 PM
SD EVP -Corporate Reserves, A & D Jan 13, 2013 Option Exercise $6.86 5,093 34,938 359,107 Jan 15, 2013, 05:58 PM
SD EVP -Corporate Reserves, A & D Jan 09, 2013 Option Exercise $6.93 1,631 11,303 364,200 Jan 10, 2013, 06:56 PM
SD EVP -Corporate Reserves, A & D Jan 08, 2013 Option Exercise $6.97 1,631 11,368 365,831 Jan 10, 2013, 06:56 PM
SD EVP -Corporate Reserves, A & D Jan 02, 2013 Option Exercise $6.42 2,447 15,715 367,462 Jan 04, 2013, 04:48 PM
SD EVP -Corporate Reserves, A & D Oct 01, 2012 Option Exercise $7.06 7,424 52,384 365,015 Oct 03, 2012, 06:09 PM
SD EVP Reservoir Engineering Jul 11, 2012 Option Exercise $6.16 793 4,885 295,091 Jul 12, 2012, 05:47 PM
SD EVP Reservoir Engineering Jul 10, 2012 Option Exercise $6.10 1,585 9,668 295,884 Jul 12, 2012, 05:47 PM
SD EVP Reservoir Engineering Jul 09, 2012 Option Exercise $6.41 2,642 16,935 297,469 Jul 10, 2012, 07:22 PM
SD EVP Reservoir Engineering Jul 08, 2012 Option Exercise $6.43 4,954 31,854 300,111 Jul 10, 2012, 07:22 PM
SD EVP Reservoir Engineering Jul 02, 2012 Option Exercise $6.54 2,404 15,714 305,065 Jul 05, 2012, 04:26 PM
SD EVP Reservoir Engineering Apr 02, 2012 Option Exercise $8.00 3,727 29,805 302,661 Apr 04, 2012, 06:55 PM
SD EVP Reservoir Engineering Mar 16, 2012 Sale $8.48 11,053 93,679 0 Mar 19, 2012, 05:25 PM
SD EVP Reservoir Engineering Mar 15, 2012 Sale $8.37 28,000 234,360 298,934 Mar 19, 2012, 05:25 PM
SD EVP Reservoir Engineering Jan 14, 2012 Option Exercise $8.05 4,954 39,880 326,934 Jan 18, 2012, 05:09 PM
SD EVP Reservoir Engineering Jan 11, 2012 Option Exercise $8.47 793 6,717 269,388 Jan 13, 2012, 05:19 PM
SD EVP Reservoir Engineering Jan 09, 2012 Option Exercise $8.50 1,793 15,241 270,181 Jan 10, 2012, 04:54 PM
SD EVP Reservoir Engineering Jan 08, 2012 Option Exercise $8.54 1,795 15,329 271,974 Jan 10, 2012, 04:54 PM
SD EVP Reservoir Engineering Jan 03, 2012 Option Exercise $8.30 1,834 15,228 273,769 Jan 05, 2012, 05:25 PM
SD EVP Reservoir Engineering Oct 03, 2011 Option Exercise $5.07 9,972 50,538 271,935 Oct 05, 2011, 04:51 PM
SD EVP Reservoir Engineering Jul 09, 2011 Option Exercise $10.83 2,663 28,840 265,159 Jul 12, 2011, 06:37 PM
SD EVP Reservoir Engineering Jul 11, 2011 Option Exercise $10.28 1,598 16,427 262,762 Jul 12, 2011, 06:37 PM
SD EVP Reservoir Engineering Jul 10, 2011 Option Exercise $10.83 1,598 17,306 263,561 Jul 12, 2011, 06:37 PM
SD EVP Reservoir Engineering Jul 01, 2011 Option Exercise $10.55 1,312 13,842 205,322 Jul 06, 2011, 05:45 PM
SD EVP Reservoir Engineering Apr 01, 2011 Option Exercise $13.01 1,620 21,083 204,010 Apr 05, 2011, 07:13 PM
SD EVP Reservoir Engineering Jan 31, 2011 Option Exercise $7.44 400 2,976 202,390 Feb 02, 2011, 06:40 PM
SD EVP Reservoir Engineering Jan 11, 2011 Option Exercise $7.80 878 6,848 140,290 Jan 12, 2011, 06:34 PM
SD EVP Reservoir Engineering Jan 09, 2011 Option Exercise $7.81 1,808 14,120 141,168 Jan 10, 2011, 06:13 PM
SD EVP Reservoir Engineering Jan 08, 2011 Option Exercise $7.81 1,808 14,120 142,976 Jan 10, 2011, 06:13 PM
SD EVP Reservoir Engineering Jan 03, 2011 Option Exercise $7.54 1,722 12,981 144,784 Jan 05, 2011, 05:50 PM
SD EVP Reservoir Engineering Oct 05, 2010 Option Exercise $5.87 7,052 41,395 143,062 Oct 07, 2010, 05:41 PM

Desktop Version

Symbol Relationship Date Transaction Value($)
SD EVP-Corp Reserves and A & D Apr 01, 2013 Option Exercise 30,591
SD EVP - Corp Reserves & Acquisit Mar 15, 2013 Sale 481,576
SD EVP -Corporate Reserves, A & D Jan 14, 2013 Option Exercise 33,919
SD EVP -Corporate Reserves, A & D Jan 13, 2013 Option Exercise 34,938
SD EVP -Corporate Reserves, A & D Jan 09, 2013 Option Exercise 11,303
SD EVP -Corporate Reserves, A & D Jan 08, 2013 Option Exercise 11,368
SD EVP -Corporate Reserves, A & D Jan 02, 2013 Option Exercise 15,715
SD EVP -Corporate Reserves, A & D Oct 01, 2012 Option Exercise 52,384
SD EVP Reservoir Engineering Jul 11, 2012 Option Exercise 4,885
SD EVP Reservoir Engineering Jul 10, 2012 Option Exercise 9,668
SD EVP Reservoir Engineering Jul 09, 2012 Option Exercise 16,935
SD EVP Reservoir Engineering Jul 08, 2012 Option Exercise 31,854
SD EVP Reservoir Engineering Jul 02, 2012 Option Exercise 15,714
SD EVP Reservoir Engineering Apr 02, 2012 Option Exercise 29,805
SD EVP Reservoir Engineering Mar 16, 2012 Sale 93,679
SD EVP Reservoir Engineering Mar 15, 2012 Sale 234,360
SD EVP Reservoir Engineering Jan 14, 2012 Option Exercise 39,880
SD EVP Reservoir Engineering Jan 11, 2012 Option Exercise 6,717
SD EVP Reservoir Engineering Jan 09, 2012 Option Exercise 15,241
SD EVP Reservoir Engineering Jan 08, 2012 Option Exercise 15,329
SD EVP Reservoir Engineering Jan 03, 2012 Option Exercise 15,228
SD EVP Reservoir Engineering Oct 03, 2011 Option Exercise 50,538
SD EVP Reservoir Engineering Jul 09, 2011 Option Exercise 28,840
SD EVP Reservoir Engineering Jul 11, 2011 Option Exercise 16,427
SD EVP Reservoir Engineering Jul 10, 2011 Option Exercise 17,306
SD EVP Reservoir Engineering Jul 01, 2011 Option Exercise 13,842
SD EVP Reservoir Engineering Apr 01, 2011 Option Exercise 21,083
SD EVP Reservoir Engineering Jan 31, 2011 Option Exercise 2,976
SD EVP Reservoir Engineering Jan 11, 2011 Option Exercise 6,848
SD EVP Reservoir Engineering Jan 09, 2011 Option Exercise 14,120
SD EVP Reservoir Engineering Jan 08, 2011 Option Exercise 14,120
SD EVP Reservoir Engineering Jan 03, 2011 Option Exercise 12,981
SD EVP Reservoir Engineering Oct 05, 2010 Option Exercise 41,395