Tim Pownell has joined CREDO Petroleum as president and chief operating officer.

Grizzly Oil Sands ULC has appointed John V. Pearce to chief executive officer.

Frontier Oil Corp. has appointed David M. Anderson as president - Canadian Forest Oil Ltd. and promoted Leo J. Hoonakker to vice president and treasurer.
Jason Foreman has been appointed Wellbore Energy Solutions’ quality, health, safety, and environment manager.

InterMoor Inc. has named Randy Mautz (left) quality, health, safety and environment director and Chuck Fontenot (right) quality assistance and quality control manager.

BJ Services Co.’s Process and Pipeline Services (PPS) division has appointed Bruce Campbell to the position of business development manager – flange integrity.

Knight Oil Tools has promoted Jerome Lane to operations manager for its Oil Tools operating company.

Ascent Resources plc has appointed Simon Cunningham to the board as executive finance director.

Geophysics expert Elizabeth Diaz (left) has joined Houston-based rock physics company Ingrain as its chief geoscientist. Also, the company added Patricia Pastana de Lugão (right) as the managing director of Ingrain’s first international office, located in Rio de Janeiro, Brazil.