Related Clues:
- Shell competitor
- L.A.-based petroleum giant
- Big name in oil
- 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
- Company whose logo has a red 'o'
- Big name in the oil biz
- 'Giovanna d'___' (Verdi opera)
- 1999 British Petroleum acquisition