Related Clues:
- Very dark-yellow oil
- Crude, in slang
- *Oil, informally
- Target for some Southern pumps
- Oil metaphor
- Oil well output, in slang
- Petroleum nickname
- *Oil, jocularly
- Crude oil, slangily
- Like coal or oil
- Term for oil in a 1960s sitcom's theme song
- 'Texas tea,' by another name
- Crude oil, in slang
- Oil, in slang