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
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
It has in one part a spring of petroleum or rock oil, and one of its mountains is a volcano.
Then came the great discovery of rock oil, which rapidly superseded the whale oil of commerce in general use.
From Equatorial America Descriptive of a Visit to St. Thomas, Martinique, Barbadoes, and the Principal Capitals of South America by Ballou, Maturin Murray
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