Crossword Helper

Enter a clue or pattern or both:

The Clue

Oil source (5 letter answer)

The Answer

SHALE

Tags

argillaceou bit cleavable fissile flagstone fossil fracking fragile grained hold ingredient into laminated layered material may medium mineral oil oily petroleum potential rock shale shelf slate source stone synfuel used

Notes

The answer SHALE is common and appears about once every 225 puzzles.

Related Clues

Mudstone
Argillaceous rock
Brick ingredient
Cleavable rock
Fissile rock
Fossil medium
Fossil source
Kind of oil
Laminated rock
Layered rock
Oil rock
An oil source
Oil yielder
Oily stone
Petroleum source
Shelf material
Slate, originally
A source of oil
One source of oil
Source of oil
Synfuel source
Easily split rock
Fine-grained rock
Fragile layered rock
Potential oil source
Rock used for flagstones
Rock that may hold fossils
Rock that splits into bits
Mineral layer involved in fracking

Definition

SHALE as a noun:

1. a sedimentary rock formed by the deposition of successive layers of clay
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