Prices for the U.S. will go up by between 40 and 60 cents.,". Those for Europe, a relatively small market for Aramco, will be cut. OPEC+ opted on Thursday to proceed with a production increase for next month, even as new Covid-19 cases threaten to sap demand and with the alliance predicting the oil market will flip from a supply deficit to a surplus in early 2022. Brent crude is down 15% since late November to just below $70 a barrel, reducing this year’s gain to 35%. The fall is mainly due to the discovery of omicron and the prospect...