Oil prices trickled a fraction lower on Tuesday but remained near a three-month high as investors kept the faith with hopes that a fully fledged U.S.-China trade deal is in the pipeline and set to stoke oil demand in the world’s biggest economies. Under a partial trade agreement announced last week, Washington will reduce some tariffs on Chinese imports in exchange for Chinese purchases of agricultural, manufactured and energy products increasing by about $200 billion over the next two years JP Morgan and Goldman Sachs (NYSE:GS) have revised their oil price forecasts for the next year upwards, with an OPEC-led agreement to curb output further dovetailing with the improving trade outlook between the U.S. and China.