Related Clues:
- Shell competitor
- Corporate giant based in Irving, Tex.
- Florida city
- Big name in oil
- Classic gas brand
- Big name in petroleum
- Shell alternative
- Company whose logo has a red 'o'
- 1999 British Petroleum acquisition
- Exxon alternative
- Company that merged with BP, 1998
- Gulf rival
- Rival of 43-Across
- Gulf competitor
- Roman god