| Name | Country | Market Cap (US$) |
|---|
| Exxon Mobil Corporation | United States | 353,192 |
| Chevron Corp | United States | 131,486 |
| BP plc | United Kingdom | 127,020 |
| Petroleo Brasileiro S.A. | Brazil | 121,038 |
| OAO Gazprom | Russia | 116,538 |
| Total SA | France | 107,051 |
| ConocoPhillips | United States | 81,811 |
| ENI SpA | Italy | 78,042 |
| Schlumberger Ltd. | United States | 72,636 |
| Saudi Basic Industries Corporation (SABIC) | Saudi Arabia | 71,914 |
| StatoilHydro ASA | Norway | 58,475 |
| China Petroleum & Chemicals Corporation | China | 53,876 |
| Reliance Industries Ltd. | India | 49,952 |
| Rosneft OJSC | Russia | 43,911 |
| Oil & Natural Gas Corporation Ltd | India | 42,931 |
| Ecopetrol S.A. | Colombia | 40,472 |
| Occidental Petroleum Corporation | United States | 39,220 |
| Lukoil OAO | Russia | 36,961 |
| EnCana Corporation | Canada | 32,754 |
| Imperial Oil Ltd. | Canada | 28,021 |
| Devon Energy Corporation | United States | 27,745 |
| Canadian Natural Resources Limited | Canada | 27,304 |
| Repsol YPF S.A. | Spain | 27,244 |
| Husky Energy Inc. | Canada | 26,282 |
| Compania Espanola de Petroleos SA (CEPSA) | Spain | 25,212 |
| Suncor Energy Inc. | Canada | 25,025 |
| Air Liquide S.A. | France | 24,895 |
| Transocean Inc. | United States | 24,779 |
| Apache Corporation | United States | 24,014 |
| Woodside Petroleum Ltd. | Australia | 22,504 |
| Fortum Oyj | Finland | 21,040 |
| Formosa Petrochemical Corp. | Taiwan | 20,658 |
| TNK-BP Holding | Russia | 20,246 |
| Praxair, Inc. | United States | 19,296 |
| Marathon Oil Corporation | United States | 18,965 |
| XTO Energy Inc. | United States | 17,694 |
| Hess Corp | United States | 17,405 |
| Halliburton Company | United States | 16,608 |
| Sasol Ltd. | South Africa | 16,584 |
| EOG Resources, Inc. | United States | 16,013 |
| PTT PCL | Thailand | 15,950 |
| Inpex Corp | Japan | 15,934 |
| NOVATEK | Russia | 15,792 |
| Surgutneftegas | Russia | 14,865 |
| Anadarko Petroleum Corporation | United States | 14,246 |
| Canadian Oil Sands Trust | Canada | 12,729 |
| Air Products & Chemicals, Inc. | United States | 11,664 |
| Petro-Canada Limited | Canada | 11,232 |
| Spectra Energy Corp. | United States | 10,846 |
| PTT Exploration & Production PC, Ltd | Thailand | 10,384 |
| Diamond Offshore Drilling, Inc. | United States | 10,328 |
| OMV AG | Austria | 10,306 |
| Galp Energia, SGPS, S.A. | Portugal | 10,283 |
| Chesapeake Energy Corporation | United States | 10,257 |
| Valero Energy Corporation | United States | 9,971 |
| Talisman Energy Inc. | Canada | 9,751 |
| Murphy Oil Corporation | United States | 9,522 |
| Indian Oil Corporation Ltd. | India | 9,512 |
| Nabors Exchangeco (Canada) Inc. | Bermuda | 9,108 |
| Enterprise Products Partners LP | United States | 8,333 |
| Nexen Inc. | Canada | 7,660 |
| Noble Corporation | United States | 7,633 |
| Rabigh Refining & Petrochemical Company | Saudi Arabia | 7,209 |
| Cairn India Limited | India | 7,003 |
| Tullow Oil plc | Republic of Ireland | 6,731 |
| A2A SpA | Italy | 6,490 |
| Penn West Energy Trust | Canada | 6,464 |
| S-Oil Corp | South Korea | 6,365 |
| Noble Energy Inc. | United States | 6,203 |
| Ultra Petroleum Corporation | United States | 6,145 |
| Nippon Oil Corporation | Japan | 5,790 |
| Petronas Gas Bhd | Malaysia | 5,716 |
| Changjiang Securities Co Ltd | China | 5,676 |
| PKN ORLEN SA | Poland | 5,536 |
| ENSCO International Inc. | United States | 5,430 |
| Santos Ltd. | Australia | 5,239 |
| SK Energy Co., Ltd. | South Korea | 5,207 |
| Oil & Gas Development Corporation | Pakistan | 5,187 |
| SNP Petrom S.A. | Romania | 5,117 |
| Addax Petroleum Corporation | Switzerland | 5,012 |
| SeaDrill Limited | Bermuda | 4,945 |
| FMC Technologies, Inc. | United States | 4,774 |
| Worleyparsons Limited | Australia | 4,583 |
| Nabors Industries Ltd. | Bermuda | 4,530 |
| Range Resources Corporation | United States | 4,513 |
| Tatneft OAO | Russia | 4,509 |
| Ina-Industrija Nafte dd | Croatia | 4,496 |
| Questar Corporation | United States | 4,340 |
| Enerplus Resources Fund | Canada | 4,223 |
| Turkish Petroleum Refineries Corp.(TUPRAS) | Turkey | 4,060 |
| Pioneer Natural Resources Company | United States | 4,029 |
| Offshore Oil Engineering Co Ltd | China | 3,837 |
| Continental Resources, Inc | United States | 3,745 |
| Cairn Energy plc | United Kingdom | 3,637 |
| Slovnaft a.s. | Slovakia | 3,594 |
| Saras Spa | Italy | 3,510 |
| ARC Energy Trust | Canada | 3,447 |
| BJ Services Company | United States | 3,430 |
| Hellenic Petroleum S.A. | Greece | 3,210 |
| Essar Oil Limited | India | 3,144 |
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