| Answer | Crossword Clue |
|---|---|
| OPEC | Oil ministers' grp. |
| OPEC | Oil ministers' org. |
| OPEC | Oil grp. |
| OPEC | Oil producers' grp. |
| OPEC | Oil pricing grp. |
| OPEC | Oil nations' grp. |
| OPEC | Oil producer's grp. |
| OPEC | Oil exportation grp. |
| OPEC | Oil price-setting grp. |
| OPEC | Oil grp. since 1960 |
| OPEC | Grp. of oil producers |
| EPA | Grp. concerned with oil spills |
| OPEC | Grp. that sets oil benchmarks |
| OPEC | Acronym for an oil-rich grp. |
