From Longman Dictionary of Contemporary Englishoil rigˈoil rig (also oil platform) noun [countable] TPGa large structure on the land or in the sea, which has equipment for getting oil from under the ground
Examples from the Corpus
oil rig• Passing an oil rig and numerous naval vessels, we moored alongside a jetty on the estuary leading up to the town.• It is rumoured that an oil rig is to be set up on the local water meadows.• Balder is a semi-submersible crane barge designed for work in constructing oil rig platforms.• Joseph Oncale charges that his male supervisors and a male co-worker harassed him while he was working at a Louisiana oil rig.• Francis McFarlane, 44, has not worked since he witnessed the oil rig blaze which killed 164 workers in July 1988.From Longman Business Dictionaryoil rigˈoil rig noun [countable] a large structure with equipment for getting oil from under the sea bottom or under the ground 