Oil prices tumbled on Monday after Iran agreed a historic agreement with world powers to halt its uranium enrichment programme, lifting hopes for a relaxation of geopolitical risk and a boost in oil supplies.
Oil prices edged lower in Asian trade Monday as the United States faces a potentially devastating sovereign debt default after senators failed to end a budget impasse.
Oil prices rose in Asia on Wednesday as investors expect a US stockpiles report to show a fall, indicating firm demand in the world's top crude consumer, analysts said.
Tehran, YJC. -- Oil prices rose in thin Asian trade Monday, supported by fears that the unrest in Egypt could spread across the Middle East and block off supplies, analysts said.