The most common and most likely answer to this crossword clue is the 5 letter word SHALE which also is the latest solution we found used in USA Today in 2012.
Possible source of petroleum crossword clue answers
Here's a list of possible crossword answers ranked by the most likely to least likely.
| Answer | Likelyness | Letters |
|---|---|---|
| SHALE | 100 % | 5 |
Words with a meaning similar to the clue: Possible source of petroleum
These words may or may not be a possible solution to this crosswords clue.- shale
- energy
- strike
- cob
- cola
- goat
- hazard
- peril
- run
- recourse
- top
- gas
Crossword Answer definitions
SHALE noun- A shell or husk; a cod or pod.
- A fine-grained sedimentary rock of a thin, laminated, and often friable, structure.
- To take off the shell or coat of.
More crossword clues leading to the same solutions
Here's a few more crossword clues - all leading to the identical solution