الأخبار/Crude Oil Slumps on Concern COVID-19 Variant From South Africa Ca…importantCrude Oil Slumps on Concern COVID-19 Variant From South Africa Can Evade Vaccinations, First-Quarter Supply Overload٢٦ نوفمبر ٢٠٢١١٠:٥٩ UTCDALLUVJBLUCCL