Answer:
O
I
L
B
A
S
E

We have spotted OILBASE (7 Letters) a total of 2 times in our database. Below you may see the clues associated with OILBASE and also when and where was it last seen:

Referring crossword puzzle clues

Usage among publishers:

  • Wall Street Journal: May 29, 2024
  • Wall Street Journal: Jan 25, 2024