Oil in London climbed for a fourth straight week as efforts to clear an oil surplus are seen holding the market over until demand comes back in force. Global benchmark Brent futures on Friday surged the most since early January, while West Texas Intermediate crude flirted with $60 a barrel for the first time in more than a year. Signs of inventories declining in the U.S. and elsewhere point to the success OPEC+ has had in draining a surplus left in the wake of a historic demand slump due to the pandemic. OPEC expects a stronger second half of 2021, indicating this week that global inventories will face sharp declines unless the cartel boosts supply. Iraq said OPEC+ is unlikely to change its output policy at a March meeting. […]