rock oil
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
But by fracking the rock, oil flowed from the shale.
From The Wall Street Journal • Apr. 8, 2014
Both Townsend and Drake would have died richer men had they never heard of the Pennsylvania rock oil.
From Inventors by Hubert, Philip Gengembre
No. On all bearings the same oil, but on mainspring a rock oil.
From Friction, Lubrication and the Lubricants in Horology by Lewis, William T.
The oil mentioned in the next line, is that called the rock oil, petroleum, a black fetid mineral oil, good for bruises and sprains.
From The Lusiad or The Discovery of India, an Epic Poem by Camões, Luís de
There are likewise springs of rock oil or bitumen.
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.