Chevron Corp. has announced that executive vice president, Charles A. James, will leave the company effective May 2, 2010. James, who intends to retire from the active practice of law, will join the adjunct faculty of the law school at Arizona State University and pursue other charitable ventures.

Avantium has appointed former Shell CTO Dr. Jan van der Eijk to its supervisory board. Eijk said, “It is an exciting time to join this young but experienced company and help propel its furanics bioplastics and biofuels program

The National Subsea Research Institute has appointed Dr. Richard Neilson as academic research director.

The Artificial Lift Company Ltd. has promoted Peter Moulsdale to director and vice president, operations.

HB Rentals, a Superior Energy Services company, has appointed Ken Ferguson director of global business development, Tim Murphy technical sales and marketing manager, Clayton George technical division manager, and Jill Adams to the corporate sales team.

Christopher Gaut has been appointed chairman of Reservoir Group’s board of directors. “I look forward to being involved in further developing this strategy for the Group’s future prosperity,” he said.

RBG Limited has named Kevin Lyon deputy chairman and Andrew Glen finance director.

Rosetta Resources Inc. has appointed Randy L. Limbacher chairman of the board of directors.

Dave Coutts has joined Delmar North Sea Ltd. as business development manager.

Knight Oil Tools has named Norman Henry as its sales manager for the Louisiana region.