ISTANBUL--October 15, 2012--Researched by Industrial Info Resources (Sugar Land, Texas)--Global oil demand is looking weaker than previously forecast as the slowing economy continues to weigh on consumption, according to monthly report released by the Organization of the Petroleum Exporting Countries (OPEC) (Vienna, Austria). The 12-member oil cartel trimmed its forecast for growth in world oil demand in 2013 by 30,000 barrels per day to 780,000 barrels.