An oil is any nonpolar chemical substance that is a viscous liquid at ambient temperatures and is both hydrophobic (immiscible with water, literally "water fearing") and lipophilic (miscible with other oils, literally "fat loving"). Oils have a high carbon and hydrogen content and are usually flammable and surface active.
- Sweet oil, the fragrance of the gods, mixed oil, pressed oil, aromatic oil, cedar oil for offerings are mine.
- See also: Petroleum engineering
- To ask the question "What is oil?" is almost like asking "What is love?"
- The world petroleum story is one of the most inhuman known to man: in it, elementary moral and social principles are jeered at. If powerful oil trusts no longer despoil and humiliate our country it is not because these predators have become human, but because we have won a hard-fought battle which has been going on since the beginning of the century.
- Muhammad Reza Pahlavi, The Shah's Story (1980), page 59.
- Our oil supply is secure, not because our government threatens to use force against those who would make it insecure, but because the world’s oil suppliers want to make money.
- David R. Henderson, as quoted in Handbook of Oil Politics, edit. Robert E. Looney, Routledge, Chap. 11 “Do Governments need to Go to War for Oil?” (2012) p. 144.
- I think Arctic drilling is insane. I think that countries around the world would be very well advised to put restrictions on drilling for oil in the Arctic ocean.
- I’ve said many times that there isn’t a country in the world that would find billions of barrels of oil and leave it in the ground while there is a market for it.
- Justin Trudeau, speaking about the Trans Mountain Pipeline. As quoted by The Guardian, Canada approves controversial Kinder Morgan oil pipeline (30 November 2016).