Related Clues:
- Olive __
- It can follow the first word of 17-, 26-, 37-, 50- and 60-Across
- Kuwait export
- Flivver fuel
- Methane, for one
- Alberta Gold
- Ethane or methane
- Driller's quest, often
- Methane, e.g.
- Pump stuff
- Electric alternative
- Nitrogen, for one
- Bug juice?
- Holy __
- Word that can precede the last word of the four longest puzzle answers