| Answer | Crossword Clue |
|---|---|
| ARCO | Oil company acronym |
| OPEC | Oil acronym |
| ARCO | Oil acronym |
| OPEC | Oil suppliers acronym |
| OPEC | Oil bloc acronym |
| OPEC | Oil cartel acronym |
| OPEC | Oil-cartel acronym |
| ESSO | Acronym formed from Standard Oil |
| OPEC | Acronym for an oil cartel |
| OPEC | Acronym for an oil group |
| ESSO | Acronym formed from "Standard Oil" |
| OPEC | Acronym for an oil-rich grp. |
| OPEC | Acronym for an oil-rich group |
