- Saudi Arabian Oil Company
3028
- Petroleos Mexicanos
1278
- Petroleos de Venezuela
1258
- China National Petroleum
1168
- BP Amoco + Arco
963
- ExxonMobil
894
- Royal Dutch/Shell
859
- Nigerian National Petroleum Company
772
- Iraq National Oil Company
770
- Kuwait Petroleum Corporation
757
- Chevron + Texaco
756
- Valero 380
- Chem-Energy Corporation 10 [1]
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