Related Clues:

• Piano-playing Dame
• Shell competitor
• Spandau's last prisoner
• L.A.-based petroleum giant
• Big name in oil
• Pianist Myra
• It's a gas
• Classic gas brand
• Big oil company
• Sacramento's ___ Arena
• Big name in petroleum
• Shell alternative
• With a bow, to Stern
• Chevron competitor
• Infamous Rudolf