From left to right:

Roger A. Brown, President, Smith Diamond Technology

Doug Rock, Chairman of the Board and Chief Executive Officer

D. Barry Heppenstall, President, Smith Tool

Neal S. Sutton, Senior Vice President - Administration, General Counsel and Secretary

Richard A. Werner, President, Smith Drilling & Completion

John J. Kennedy, Vice President, Chief Accounting Officer and Treasurer

Loren K. Carroll, Executive Vice President and Chief Financial Officer; President and Chief Executive Officer, M-I Drilling Fluids, L.L.C.