Last seen in:
- Newsday.com - May 13 2021
- L.A. Times Daily - Jul 22 2018
- The Washington Post - Jul 22 2018
- Newsday.com - Feb 16 2018
- Newsday.com - May 22 2016
- Newsday.com - Jan 26 2014
- Newsday.com - Oct 15 2009
- USA Today - Mar 25 2009
- The Telegraph - QUICK CROSSWORD NO: 25,189 - Jan 1 2007
- L.A. Times Daily - Aug 27 2006
Related Clues:
- *Sedimentary rock
- Take head off pimple satisfactorily - it's bound to release all that viscous liquid
- Source of gas market includes hydrogen
- Fracking target
- Boring source of energy?
- Fuel oil source
- Painting skilfully, one might gush
- Rock that's fracked
- Fossil-yielding sedimentary rock
- Crude construction? (2 words)
- Say nothing, given drink that may be full of gas!
- Source of petrol
- Rock that's 'fracked'
- Oil-yielding mineral
- Rock from which slate is formed