Following is the list of Top 10 Largest Refining Companies In The World as per Oil and Gas Journal, 2010-11.
| S.No. | Company | Crude Capacity, barrels per calendar day (b/cd)* |
| 1 | ExxonMobil Corp. (USA) | 5,783,000 |
| 2 | Royal Dutch/Shell (NL/UK) | 4,509,239 |
| 3 | Sinopek (China) | 3,971,000 |
| 4 | BP (UK) | 3,325,050 |
| 5 | ConocoPhillips (USA) | 2,778,200 |
| 6 | Chevron Corp. (USA)** | 2,755,600 |
| 7 | PDVSA (Venezuela) | 2,678,000 |
| 8 | Valero Energy Corp. (USA) | 2,616,500 |
| 9 | CNPC (China) | 2,615,000 |
| 10 | Total (France) | 2,451,106 |
