: a rock (such as shale) from which oil can be recovered by distillation
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Such basins are common across the Balkans, with many containing borates and oil shales, but only Jadar has jadarite.—New Atlas, 4 Aug. 2025 Mizuho Securities thinks there’s only 25 more years of oil shale wells left to drill anyway.—Bryce Erickson, Forbes.com, 25 July 2025 In his case, the early 1970s boom in the oil shale industry on the Western Slope attracted him.—Literary Hub, 11 June 2025 According to the International Energy Agency, in 2020, countries outside the Organization for Economic Cooperation and Development relied on coal, peat, and oil shale for 36 percent of their total energy supply, while renewables supplied only 16 percent.—Kelly Sims Gallagher, Foreign Affairs, 14 Dec. 2021 See All Example Sentences for oil shale
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