M David Demshur

Insider Trading: Sales
Company Symbol Price Amount Relationship Remaining Holdings Date Form 4
CLB $110.17 1,000 Officer, Director 181,962 2011-07-27 Filing
CLB $109.24 8,810 Officer, Director 182,962 2011-07-27 Filing
CLB $108.51 19,974 Officer, Director 191,772 2011-07-27 Filing
CLB $107.40 10,536 Officer, Director 211,746 2011-07-27 Filing
CLB $106.93 2,610 Officer, Director 222,282 2011-07-27 Filing
CLB $110.03 500 Officer, Director 224,892 2011-07-26 Filing
CLB $109.25 109,314 Officer, Director 225,392 2011-07-26 Filing
CLB $108.77 18,000 Officer, Director 334,706 2011-07-26 Filing
CLB $111.17 14,826 Officer, Director 352,706 2011-07-25 Filing
CLB $110.79 14,430 Officer, Director 367,532 2011-07-25 Filing
CLB $76.18 17,791 Officer, Director 381,962 2010-07-30 Filing
CLB $75.73 18,950 Officer, Director 399,753 2010-07-30 Filing
CLB $77.00 300 Officer, Director 418,703 2010-07-29 Filing
CLB $76.16 56,147 Officer, Director 419,003 2010-07-29 Filing
CLB $75.92 6,812 Officer, Director 475,150 2010-07-29 Filing
CLB $124.10 5,178 Officer, Director 240,981 2010-02-16 Filing
CLB $123.34 142,220 Officer, Director 246,159 2010-02-16 Filing
CLB $122.91 2,602 Officer, Director 388,379 2010-02-16 Filing
CLB $108.14 29,892 Officer, Director 390,981 2009-10-29 Filing
CLB $107.42 47,044 Officer, Director 420,873 2009-10-29 Filing