Many years of funds underinvestment in the COVID-19 pandemic has led to tight worldwide oil offer, which happens to be assisting to carry the location cost of crude. H?i ??ng x? s? ki?n thi?t mi?n B?c bao g?m 28 ??n v? thành viên, trong ?ó có 6 ??n v? t? ch?c quay s? ch