Answer: OILSHALE
OILSHALE is a crossword puzzle answer that we have spotted 6 times. There are no related answers. Try defining OILSHALE with Google.
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Recent usage in crossword puzzles:
- Newsday - Feb. 1, 2019
- Newsday - June 22, 2018
- Washington Post - July 12, 2016
- Universal Crossword - Dec. 28, 2013
- New York Times - Nov. 1, 2013
- LA Times - May 27, 2009
