/ Thesaurus / O Synonyms of oil industry Find synonyms for: Noun1. oil industry, refining industry, oil business, industryusage: an industry that produces and delivers oil and oil productsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language