(EnergyAsia, April 1 2013, Monday) — The Organisation of Petroleum Exporting Countries (OPEC) has kept its latest forecast for 2013 world oil demand almost unchanged at 89.67 million b/d compared with 89.68 million b/d previously. In its March report, the cartel expects world oil demand to rise by 840,000 b/d or 0.94%, about the same…