Crude oil prices retreated from early gains Tuesday amid market uncertainty following delays in the release of a monthly market report from OPEC. Oil prices pulled back from an early May rally as traders awaited reports on whether the world economy was pushing markets toward the demand side. Oil prices fell by more than half their June highs above $100 per barrel in early 2014 as crude oil continued to build up in storage as the global economy failed to gain traction. A survey last week from Platts showed the Organization of Petroleum Exporting Countries increased production in April by 210,000 barrels per day to 30.9 million bpd. Tacit OPEC leader Saudi Arabia, which saw an increase in production, said last month […]