After a week of swings driven by the surprise election of Donald Trump and speculation over OPEC’s intentions, oil prices were back where they started. Futures slipped 1 percent on Friday, bringing them roughly in line with their close on Nov. 4. The International Energy Agency, the Paris-based adviser to some of the world’s biggest economies, said it’s waiting to see whether President-elect Trump’s rhetoric hardens into action before revising its market forecasts. Prices may retreat amid “ relentless global supply growth ” unless the Organization of Petroleum Exporting Countries goes ahead with significant production cuts, the agency said. Oil has slipped below $45 a barrel following OPEC’s failure last month to agree on output quotas for member countries. Targets must be agreed upon before the group’s deal to cut production can be finalized at a meeting in Vienna on Nov. 30. While investors took comfort from Trump’s conciliatory […]