| Answer | Crossword Clue |
|---|---|
| DDS | Drilling expert: Abbr. |
| NCO | Drilling type: Abbr. |
| DDS | Drilling expert? (Abbr.) |
| DDS | Drilling professional (Abbr.) |
| SGT | One involved with drilling: Abbr. |
| DDS | Requirement for some drilling: Abbr. |
| ANWR | Alaskan area at the center of an oil-drilling controversy: Abbr. |
