Top oil producers are on Thursday to discuss a possible cut in output after a collapse in demand due to the coronavirus and a Saudi-Russian price war caused the market to crash.
The teleconference scheduled for 1400 GMT between OPEC, its OPEC+ allies including Russia and other key non-members is seen as the best chance of providing support to prices which are wallowing near two-decade lows.
Experts warn that without concerted action the commodity risks another steep sell-off.
But investors seemed hopeful on Thursday, sending oil prices rising.
Last week US President Donald Trump claimed Russia and Saudi Arabia would step back from their stand-off and agree to slash output.
Then OPEC kingpin Saudi Arabia called for an urgent meeting of producers "to try to reach a fair deal" to "stabilise the oil market" following a phone call between its Crown Prince Mohammed bin Salman and Trump.
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Thursday's meeting intends to conclude an agreement to cut production by between 10 and 15 million barrels per day, Kuwait's Oil Minister Khaled al-Fadhel said in an interview with the Kuwaiti Al-Rai daily published Thursday.
Late Wednesday a spokesman for the Russian energy ministry told the TASS agency that Moscow was "prepared to cut 1.6 million barrels a day", which would be the equivalent of 14 percent of Russia's production in the first quarter of 2020.
Kremlin spokesman Dmitri Peskov in a press briefing on Thursday declined to give details, only saying Russia was in favour of "coordinated action to stabilise the global oil market".
"The extraordinary producing-countries meeting is the only hope on the horizon for the market that could prevent a total price collapse," said Bjornar Tonhaugen, head of oil markets at Rystad Energy.
Saudi Arabia will on Friday host a separate virtual gathering of energy ministers from the G20 group of major economies in a similar bid to ensure "market stability".
Oil prices have slumped since the beginning of the year as the COVID-19 pandemic sends large parts of the planet into lockdown and brings the global economy to a virtual standstill. Compounding the problem, Riyadh and Moscow have both ramped up output in a bid to hold on to market share and undercut US shale producers.
"Saudi Arabia and Russia have been extremely clear that they will cut production if -- and only if -- other major oil producers join in as well," said SEB oil analyst, Bjarne Schieldrop.
However, there are worries about the participation of US producers.
The US is battling to breathe new life into its shale industry, which has transformed the nation into the world's top producer, but which cannot sustain its high cost base as prices collapse.
Yet its oil sector appears reluctant to trim production, having extracted a near-record 13 million barrels per day in the final week of March. This fell to 12.4 million bpd last week.
At the same time, the global supply glut -- already weighing on oil markets before the new coronavirus crisis -- has stretched oil storage capacity to its limits, forcing many producers to scale back output.
Trump on Wednesday told reporters that he wanted to save jobs. "Obviously for many years I used to think OPEC was very unfair... I hated OPEC... But somewhere along the line that broke down and went the opposite way," he said.
Ten oil-producing nations from outside the wider OPEC+ alliance, including the United States, have been asked to take part in Thursday's meeting, Russian news agency TASS reported.
Canada, Britain, Norway, Brazil, Argentina, Colombia, Egypt, Indonesia, and Trinidad and Tobago have also been invited. The International Energy Agency warned Monday that the world is set for its first annual decline in oil consumption in more than a decade because of the coronavirus pandemic.
The outbreak has shut down large swathes of the global economy, including key sectors such as air travel, manufacturing and retail.
The global oil glut could reach 25 million bpd in April, according to Rystad Energy.