Related Clues:
- Indicator on a dashboard
- Standard product, once
- Lucky strike?
- It eases friction
- Squeak remover
- Pipeline product
- Much-discussed commodity
- ___ change
- Big Nigerian export
- Iraq export
- Standard offering of old
- Something good to strike
- Kind of leak
- Sunflower yield
- Big ___ (certain energy lobby, pejoratively)