Chevron Corp. has appointed R. Hewitt Pate as vice president and general counsel. Pate will report to Chevron’s current general counsel, Charles A. James, who was named executive vice president earlier this year.

The directors of Offshore Hydrocarbon Mapping plc have promoted Richard Cooper (left) to chief executive officer of the company and appointed him to the board of directors.

Gray Wireline Service Inc. has appointed Mark Harris as president and chief executive officer.

Elizabeth D. Brumley has been promoted to chief financial officer of Bristow Group Inc.

Approach Resources Inc. has announced that Qingming Yang will join the company as vice president - exploration.

Ihab Toma has been named senior vice president of marketing and planning at Transocean Ltd.

Nance Dicciani has been named to Halliburton’s board of directors.?

Fugro Robertson has appointed Barry Ringer (right) Far East regional manager.

Hyperdynamics Corp. has announced that David Roberts and Edward Shaw will be joining its geological and geophysical technical staff as senior geological advisor and exploration manager, respectively.

Proserv Offshore has named James Cox regional sales manager and Rene Bergeron has been named estimating
proposal manager.