Oil and Gas Equipment and Services

This group collects Energy sector members that supply equipment, drilling services, engineering and construction, or technical services to oil and gas producers, rather than producing, refining or transporting oil and gas themselves: oilfield services companies, offshore and land drilling contractors, oilfield equipment manufacturers, subsea engineering and construction firms, and seismic data and geophysical services companies. This group is kept apart from every other group in this subcategory, each reserved for a company that itself produces, refines, transports or otherwise owns oil and gas assets rather than serving companies that do.