The prices of a barrel of oil are nearing $100 due to discouraging levels of shale oil production in the United States and increasing concerns about global supply shortages. For the fourth consecutive session of rising oil prices, the Brent crude oil barrel, which serves as a reference for Angolan exports, rose by 1.49% to $95.84. These prices come after a three-week recovery, both for Brent crude oil and WTI crude oil barrels, reaching ten-month