India, June 26 -- Crude oil futures fell by Rs 80 to Rs 6,589 per barrel on Thursday as improving prospects of a US-Iran agreement and rising shipments through key export routes eased concerns over global supply disruptions.

Extending the slide for the fourth straight session, crude oil for the July delivery slipped by Rs 80, or 1.2 per cent, to Rs 6,589 per barrel in a business turnover of 5,847 lots on the Multi-Commodity Exchange (MCX). The August contract also weakened by Rs 76, or 1.14 per cent, to Rs 6,587 per barrel in 2,023 lots on the MCX. Analysts said the selloff comes as market participants increasingly bet that a potential agreement between Washington and Tehran could pave the way for additional Iranian crude exports and red...