OPEC

wikipedia:OPEC

• Cartel
• Brent Crude

• OPEC, Brent Crude
• Oil, Oil refinery, PetroNor, Aramco, Vitol, ADNOC, ENOC, Total, Chevron, ExxonMobil, Texaco, Repsol, Shell, Rosneft, Shell, Brent, BP, TotalEnergies, Occidental Petroleum, Sinopec, OPEC, Brent, Barrel, Diamondback Energy, KOWA, Sonatrach, Oil level, Oil analysis, Sump Oil Pan, SAE J300, High Temperature High Shear (HTHS)