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

It has in one part a spring of petroleum or rock oil, and one of its mountains is a volcano.

From A General History and Collection of Voyages and Travels — Volume 06 Arranged in Systematic Order: Forming a Complete History of the Origin and Progress of Navigation, Discovery, and Commerce, by Sea and Land, from the Earliest Ages to the Present Time by Kerr, Robert

His words are:— “Petroleum, rock oil, or what the Welsh call it, Ymenin tylwyth têg, or Fairies’ butter, has been found in the lime stone strata in our mineral country. 

From Welsh Folk-Lore a Collection of the Folk-Tales and Legends of North Wales by Owen, Elias

There are likewise springs of rock oil or bitumen.

From A General History and Collection of Voyages and Travels — Volume 02 Arranged in Systematic Order: Forming a Complete History of the Origin and Progress of Navigation, Discovery, and Commerce, by Sea and Land, from the Earliest Ages to the Present Time by Kerr, Robert

Both Townsend and Drake would have died richer men had they never heard of the Pennsylvania rock oil.

From Inventors by Hubert, Philip Gengembre