The phrase "oil corporations" refers to big companies that are involved in the production, exploration, refining, and distribution of oil. Full definition
And all three Big Oil corporations now advocate for a price of carbon as the best way to manage the climate crisis. (nationalobserver.com)
With that being said, it's hard to go wrong these days with major integrated oil corporations. (wisestockbuyer.com)
They will read this election as a positive indicator that the incoming government is willing and able to work with them on their own terms, offering stable contracts and a «hands - off» relationship between private firms and public bodies such as the National Oil Corporation of Kenya. (blog.politics.ox.ac.uk)