shale oil

noun

shale oil

First recorded in 1855–60

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

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

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

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

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