Epo jẹ ọkan ninu awọn ọja ṣiṣe owo ti o ga julọ ni agbaye loni. Ti a beere fun iṣelọpọ petirolu, Diesel, epo ọkọ ofurufu, ati ọpọlọpọ awọn ọja miiran, epo jẹ ọkan ninu awọn ipilẹ julọ ati awọn orisun pataki ni agbaye ode oni. Ṣiṣejade epo jẹ ilana ti o duro nikan ti ko ba si epo lati jade. Iyọkuro epo jẹ ida oloju meji, nitori ilana ti jade, isọdọtun, ati sisun awọn epo fosaili gẹgẹbi epo jẹ ẹri pe o jẹ ipalara si ayika.
O fẹrẹ to idaji awọn orilẹ-ede agbaye n pese epo ni diẹ ninu agbara. A ṣe iwọn iṣelọpọ epo ni awọn agba fun ọjọ kan tabi BPD. Pupọ julọ awọn orilẹ-ede ti o nmu epo ṣe agbejade awọn ẹgbẹẹgbẹrun, paapaa awọn miliọnu awọn agba fun ọjọ kan, pẹlu iṣelọpọ lapapọ wọn nigbagbogbo ni opin nipasẹ awọn ipa ọja dipo agbara iṣelọpọ. Kii ṣe iyalẹnu, awọn iṣẹlẹ bii rogbodiyan ni awọn agbegbe ti o nmu epo, awọn iwadii aaye epo tuntun, ati awọn ilọsiwaju ninu imọ-ẹrọ isediwon ni ipa gidi lori ile-iṣẹ epo.
Eyi ni awọn orilẹ-ede 20 ti o tobi julọ ti epo ni agbaye.
| ipo | Orilẹ-ede | Awọn oogun fun ọjọ kan |
| 1. | United States | 16.6 million |
| 2. | Saudi Arebia | 11.0 million |
| 3. | Russia | 10.9 million |
| 4. | Canada | 5.4 million |
| 5. | Iraq | 4.1 million |
| 6. | China | 4.0 million |
| 7. | Apapọ Arab Emirates | 3.7 million |
| 8. | Iran | 3.6 million |
| 9. | Brazil | 3.0 million |
| 10. | Kuwait | 2.7 million |
| 11. | Norway | 2.0 million |
| 12. | Mexico | 1.9 million |
| 13. | Kasakisitani | 1.8 million |
| 14. | Qatar | 1.7 million |
| 15. | Nigeria | 1.6 million |
| 16. | Algeria | 1.4 million |
| 17. | Libya | 1.3 million |
| 18. | Angola | 1.2 million |
| 19. | Oman | 0.97 million |
| 20. | apapọ ijọba gẹẹsi | 0.87 million |
