Related Clues:
- Mobil rival of old
- Gulf competitor
- Rockefeller's company
- Predecessor of Exxon
- Humble Oil gasoline brand
- She , in Rome
- Bygone U.S. gas name
- Bygone gasoline brand
- 'Put a tiger in your tank' company
- Little Oil Drop was its mascot
- She, in Siena
- 'Happy Motoring!' sloganeer
- Old rival of 105-Across
- A gas from the past
- What it is in Italy