Related Clues:
- Nickname for Mozart's last symphony
- Gas company that had a torch in its logo
- Mobil's merger partner
- Oil patch acronym
- First off-shore driller, in 1947
- Big name in petroleum, once
- Speedpass-accepting gas company
- It merged with Mobil
- Sunoco rival
- It merged with Exxon
- The largest of a heavenly eight
- BP merger mate
- Zeus counterpart
- Infamous spiller
- Oil company in a 1999 merger