Attempts by some of the world’s biggest oil producers to freeze output ended without a deal on Sunday night, after Saudi Arabia insisted Iran should be part of any agreement.
Talks in Doha aimed at achieving the first global oil deal in 15 years, which had appeared to be on course earlier in the day, broke up late on Sunday night as ministers failed to overcome opposition from Riyadh, which had hardened its stance in recent days.
The failure to reach an agreement risks setting off another drop in the oil price, with tensions between Saudi Arabia and its regional rival Iran proving too great to overcome.
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