Below is the list of International Oil Companies taking part in searching and extraction of oil and gas In Tanzania.
- Afren
- Beach Petroleum
- Dominion Petroleum
- ExxonMobil
- Heritage Oil
- Maurel and Prom Ltd
- Ophir Energy
- Petrobras
- Shell
- SONGAS Limited
- Statoil
- Swala
- Wentworth Resources