oil shale

noun

: a rock (such as shale) from which oil can be recovered by distillation

Examples of oil shale in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Another was the decline of East Texas oilfields (the prime oil shales of West Texas and New Mexico had not been discovered yet). Ian Dexter Palmer, Forbes.com, 19 Mar. 2026 Such basins are common across the Balkans, with many containing borates and oil shales, but only Jadar has jadarite. New Atlas, 4 Aug. 2025 In his case, the early 1970s boom in the oil shale industry on the Western Slope attracted him. Literary Hub, 11 June 2025 The Estonian state-owned seeks to develop Utah oil shale. Brian Maffly, The Salt Lake Tribune, 19 July 2022 See All Example Sentences for oil shale

Word History

First Known Use

1866, in the meaning defined above

Time Traveler
The first known use of oil shale was in 1866

Browse Nearby Words

Cite this Entry

“Oil shale.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oil%20shale. Accessed 20 May. 2026.

Kids Definition

oil shale

noun
: a rock (as shale) from which oil can be recovered

More from Merriam-Webster on oil shale

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster