Oil swung as Saudi Arabia moved to restart a key pipeline and the U.S. flagged progress in talks with Iran to end a war that has disrupted energy markets for nearly seven months.
World oil prices have fallen for the sixth consecutive trading session, marking the longest decline in Brent's last year's quotas. Evolution is driven by the prospect of resuming activity to a major pipeline in Saudi Arabia and signals of possible progress in US-Iran negotiations, reports Kurs Ukrainians.