Global crude oil prices have started rising again after Iran denied reports of talks with the United States aimed at ending the ongoing war in West Asia. The surge in oil prices is attributed to fears over supply after Iran refuted claims made by US President Donald Trump that a deal was imminent.During early trading on Tuesday, the price of Brent crude rose by 1.1 percent to reach $101 per barrel, while American West Texas Intermediate (WTI) also increased by 1.8 percent to settle at $89.71.Previously, oil prices had dropped by 10 percent on Monday after Trump stated that a...