Answer: SHALE
The crossword puzzle answer SHALE has 17 different clues. We have seen it appear in puzzles 47 times.
Crossword puzzle clues for SHALE:- Classic oater
- Laminated rock
- Slippery rock
- Lucifer's forte
- Oil source
- Layered rock
- Stone
- Words of comprehension
- Oil-yielding rock
- Synfuel source
- Fine-grained rock
- Fissile rock
- Sedimentary rock
- Petroleum source
- Fuel-yielding rock
- Oil-bearing rock
- Mud, after centuries
- Washington Post Daily Crossword Puzzle - 2001-03-30
- Washington Post Daily Crossword Puzzle - 2003-11-27
- USA Today Crossword Puzzle - 2003-12-05
- Washington Post Daily Crossword Puzzle - 2003-12-20
- USA Today Crossword Puzzle - 2004-03-11
- Washington Post Daily Crossword Puzzle - 2004-07-05
- USA Today Crossword Puzzle - 2004-08-03
- USA Today Crossword Puzzle - 2005-01-25
- USA Today Crossword Puzzle - 2005-07-25
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