Related Clues:
- ___ Blue (old kerosene brand)
- Exxon forerunner
- Canadian petrol brand
- "Giovanna d'__": Verdi opera
- With the bow, in violin music
- Oil corp. based in La Palma, Calif.
- U.S. gas brand
- Standard Oil offshoot
- Exxon's old name
- Certain gas brand
- Old 'Put a tiger in your tank' brand
- Sinclair Oil rival
- Western U.S. gasoline giant
- Western U.S. oil giant
- Onetime Texaco competitor