Richard Grigg

Sino Gas & Energy Ltd. explores and develops unconventional gas assets. The joint venture company is based in Beijing, China. and has subsidiaries in Hong Kong.

Part of SLB NV, Dowell Schlumberger Corp. is a There is no available country named vg company that provides oil field services. The company is based in TO.

Core Laboratories NV engages in the provision of proprietary and patented reservoir description, production enhancement, and reservoir management services to the oil and gas industry. It operates through the Reservoir Description segment and Production Enhancement segment. The Reservoir Description segment encompasses the characterization of petroleum reservoir rock, fluid, and gas samples and provides analytical and field services to characterize properties of crude oil and petroleum products. The Production Enhancement segment provides products and services relating to reservoir well completions, perforations, stimulations, and production. The company was founded in 1936 and is headquartered in Amsterdam, the Netherlands.

Halliburton Group Canada, Inc. provides products and services to the oil & gas industry. Its services include locating hydrocarbons, managing geological data, drilling, formation evaluation, well construction and completion and optimizing production. The company was founded in 1926 and is located in Calgary, AB.

Surtron Technologies Pty Ltd. provided geophysical logging and directional drilling services. The company was founded by Richard Grigg in 1987and was headquartered in Kewdale, Australia.