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
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.
In the late fifties Mr. George H. Bissell had become interested in rock oil, not as an embrocation and as a cure for most human ills, but as a light-giving material.
From The Age of Big Business; a chronicle of the captains of industry by Hendrick, Burton Jesse
The gold mines of California and of Australia are too well known to require mention; but we must not forget the rock oil, concealed for ages in the North American continent.
From The Mines and its Wonders by Kingston, William Henry Giles
Petroleum, or rock oil, is a dark greenish brown liquid which when refined yields gasolene, naphtha, benzine, kerosene, lubricating oils, and paraffin.
From Checking the Waste A Study in Conservation by Gregory, Mary Huston
