shale oil

noun

1. petroleum distilled from oil shale.

shale oil

noun

1. an oil distilled from shales and used as fuel

Word History and Origins

Origin of shale oil¹

First recorded in 1855–60

Example Sentences

So if you think about what happened was shale oil, shale gas, renewable energy, all of that was really driven by a transformation that occurred in the energy markets that was very much driven by better information flow.

From Time

Attempts to export shale oil and gas, for example, have run smack into legal and regulatory barriers as old as a Gran Torino.

From The Daily Beast

Which, probably not coincidentally, is well under the break-even price for shale oil projects.

From The Daily Beast

It probably isn't headed back to $20 a barrel any time soon; at that price, shale oil projects wouldn't be economic.

From The Daily Beast

On mixing this soda-tar with dilute acid, the "crude shale oil creosote" separates, and is measured off.

From Project Gutenberg