The hourslong meeting in Doha, the Qatari capital, resembled a failed OPEC meeting in December that saw crude oil prices tumble on the cartel's indecision.
The fact that producers couldn't agree to even freezing production at near-record January figures likely means oil prices will drop again as markets open tomorrow.
Speaking to journalists after the summit, Mohammed bin Saleh al-Sada, Qatar's energy and industry minister, said the 18 countries gathered for the meeting believed "the fundamentals of the market are generally improving."
"We of course respect their position and ... We still don't know how the future will unroll but it was a sovereign decision by Iran," said al-Sada, who is serving as OPEC's president. "The freeze could be more effective definitely if major producers, be it from OPEC members like Iran and others, as well as non-OPEC members, are included in the freeze."
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Sunday's gathering follows a surprise Doha meeting in February between Qatar, Russia, Saudi Arabia and Venezuela, in which they pledged to cap their crude output at January levels if other producers do the same.
Prices dropped briefly to under USD 30 a barrel, a 12-year low, in January, but have climbed to the mid-USD 40s this week, boosted in part by market speculation about the Qatar meeting.
Western markets were closed Sunday and not immediately affected by the discussions, though the failure to reach a freeze likely will come into play tomorrow.
Stock exchanges in Saudi Arabia and Dubai closed in negative territory Sunday, with the Saudi Tadawul down 1.48 per cent.
"We can't cooperate with them to freeze our own output, and in other words impose sanctions on ourselves," Zangeneh said.