LONDON (AFP) - World oil prices rose slightly on Wednesday as markets awaited the latest weekly snapshot of crude inventories in top energy consumer the United States. New Yorks main contract, light sweet crude for November delivery climbed 12 cents to 76.30 dollars a barrel. Brent North Sea crude for November gained 14 cents to $78.85 in midday London trade. The US Department of Energy will later publish energy inventory levels for the week ending September 24, giving an indication of oil demand in the worlds biggest economy. Ahead of the data, due at 1430 GMT, traders said evidence that the US economy is struggling will keep crude futures prices under pressure. Lingering worries on Europes debt crisis also weighed on investor minds, they added. A report by the Conference Board, a business research firm, said Americans were pessimistic about the economic recovery, seeing worsening business and job market conditions. Consumer confidence is being sapped by high unemployment, rising gasoline prices, low equity prices and now a renewed decline in house prices, analysts from Capital Economics said in a report. Overall, falling confidence and house prices suggest that 15 months into this economic recovery households are no nearer to picking up the baton of growth.