Related Clues:

• Gas of the past
• Sinclair alternative
• With the bow, to a violinist
• Sinclair contemporary
• Exxon rival
• 'Happy Motoring' company
• Station name
• Sacramento arena
• Flying A competitor
• Big name in petrol
• Company with the old mascot Little Oil Drop
• Conoco competitor
• Old 'Happy motoring!' sloganeer
• European gas brand
• It was associated with Humble Oil