upstream petroleum services / gas field equipment / oil and gas / drill bit manufacturers / stimulation services / chemical suppliers supply / rental stores equipment / manufacturing / gas engineering / completion tools / purchased steel / manufacturers safety services / oil / gas extraction / scientific and technical services / steel pipes / services energy environmental services / /
Organization
Upstream Petroleum Industry Exploration & Production Petroleum Services Sector Seismic Service / Canadian Energy Research Institute / PSAC / national trade association / /