: a crude dark oil obtained from oil shale by heating
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Recall that America’s boom in fracking for shale oil and gas emerged directly from record high 2008 prices of $14 per million Btu for natural gas and $147 per barrel of oil.—Christopher Helman, Forbes.com, 25 Mar. 2026 The parallels between their data center land grab now and the shale oil boom-and-bust cycle of the 2010s are striking to longtime commodities analyst Jeff Currie, who is now at Carlyle.—Kelly Evans, CNBC, 24 Feb. 2026 Smith’s vision reminded me a bit of my time during the shale oil boom driving around the Permian Basin, the region of West Texas and New Mexico home to a resurgent oil and gas industry.—Justin Worland, Time, 16 Jan. 2026 Unlike crude oil, which pools in subterranean reservoirs, shale oil is found within shale rocks.—Stefanie Waldek, Space.com, 12 Jan. 2026 See All Example Sentences for shale oil