OPEC has urged its members not to mention oil prices when discussing policy in a break from the past, as the oil producing group seeks to avoid the risk of U.S. legal action for manipulating the market, sources close to OPEC said.  Proposed U.S. legislation known as “NOPEC”, which could open the group up to anti-trust lawsuits, has long lain dormant, with previous American presidents signaling that they would veto any move to make it law. But U.S. President Donald Trump has been a vocal critic of the Organisation of the Petroleum Exporting Countries, blaming it for high oil prices and urging it to increase output to relieve pressure on a market hovering around four-year highs. That has made […]