S. Reid MacDonald

Part of NOV, Inc., Maritime Hydraulics Ltd designs, manufactures, and sells a full line of coiled tubing units. Maritime Hydraulics was acquired by National-Oilwell, Inc. from Aker Maritime ASA on January 11, 2001 for $16.50 million.

OpsMobil, Inc. provides pipeline integrity inspections, aerial mapping, surveying, and remote gas plant management services. Its capabilities include asset management, energy services, autonomous asset operations, and construction. The company was founded in 1985 and is headquartered in Calgary, Canada.

Crown Energy Technologies, Inc. manufactures drilling, well servicing and rig equipment. It also engages in new oilfield equipment manufacturing, equipment retrofitting, parts and supplies and field service. Its clients include petroleum industry service companies, exploration, production and government organizations in oil producing regions. The company was founded by Rance E. Fisher and Todd E. Fisher in 1987 and is headquartered in Calgary, Canada.

Sabre Well Servicing, Inc. operates as a well servicing contractor. It offers completions, workovers, and re-entry preparation. The company was founded in 2006 and is headquartered in Calgary, Canada.

GASFRAC Energy Services, Inc. engages in the provision of liquid petroleum gas fracturing services to oil and gas. Its services include frac fluids, frac services, and consulting expertise. The company was founded by Dwight N. Loree on February 13, 2006 and is headquartered in Calgary, Canada.

Nabors Blue Sky Ltd. leases aircrafts for logistic services. The private company is based in Calgary, Canada.