Oil prices whipsawed on Thursday morning as traders reacted to comments from OPEC delegates ahead of a widely anticipated extension of the OPEC-led production cut agreement.
"Nine months with the same level of production that our member countries have been producing at is a very safe and almost certain option to do the trick," Khalid Al-Falih, Saudi Arabia's energy and industry oil minister told CNBC ahead of the closed-door meeting on Thursday.
Saudi Arabia's delegate explained while all options had been considered ahead of the announcement - including deeper cuts and a possible six-month extension - he suggested reaching an agreement to curtail oil production by a further nine months appeared the "safe bet".
Oil prices contracted sharply just minutes after Falih's comments, with Brent, the international crude oil benchmark, shedding $1 a barrel immediately afterward. Oil's fall is believed to be due to traders feeling disappointed at the lack any deeper cuts to its production. Miswin Mahesh, an oil analyst at Energy Aspects, told CNBC via telephone that "oil prices are always choppy at this point" when OPEC meetings are happening.
He added that the price fall on Thursday morning "was probably triggered" by "imbalances" in the market with some expecting deeper cuts to OPEC production. A nine-month extension was already baked into the price, according to Mahesh.
At around 11.00 a.m. London time, Brent was trading 0.3 percent lower at $53.65 a barrel with the U.S. West Texas Intermediate (WTI) benchmark edging down by nearly the same amount to sit at $50.96 a barrel.
Brent and WTI futures prices have tracked 13 percent and 14 percent higher respectively since this month's lows were reached on May 4, as hopes for a nine-month extension have risen on the back of increasingly supportive comments from Saudi Arabia, Iran and Iraq for such a result.
Nine months would 'control the situation'
A nine-month extension of the deal is the most likely outcome to be announced at OPEC's post-meeting press conference due to be held at 5:00 p.m. local time in Vienna, according to analysts at Barclays.
"Nine months… It seems that can control the situation and (help) us reach the target price that we have in our mind," Bijan Zanganeh, Iran's oil minister, told CNBC shortly ahead of the meeting.
Zanganeh suggested an oil price between $55 to $60 a barrel would be the right price for Iran as well as both OPEC and shale producers globally.
While delegates and the market have a nine-month extension to the landmark OPEC accord as the base-case scenario, Russia has suggested the unusually long duration of a possible 12-month deal and the originally proposed six-month extension has not yet been ruled out.
A key risk to OPEC only agreeing on a six-month extension is that it would expire shortly ahead of the seasonally weak first quarter in 2018, bringing idle capacity back online at a time of poor market demand, said the Barclays' note.
However, even a nine-month extension would be woefully insignificant, according to Johannes Benigni, chairman of JBC Energy Group, who claims market observers have always been too optimistic and that oil supply and demand will not be balanced before the end of 2019.
$60 a barrel forecasts seem 'overly optimistic'
"OPEC now giving a signal they're going to 2018 is great but you will see they have to roll on with their cuts. They will have to go to the end of next year and beyond," said Benigni, talking to CNBC outside of OPEC's Vienna headquarters ahead of the cartel's meeting on Thursday.
Reading through Benigni's predictions to get a sense of potential prices, the oil industry veteran warns that given the market is unlikely to be tight even as far out as 2020, forecasts for a $60 or $70 per barrel oil price are overly optimistic.
Furthermore, the reaction of U.S. shale producers will be a key factor in establishing price levels, said Benigni, adding "this supply response is a little bit of a risk for OPEC so if prices go really up it may not be in their interest."
The U.S. shale market is currently in the process of rebalancing, according to the JBC chairman, who says that the era of falling production costs has now been replaced by stability but could soon turn to a climate of rising costs.
Everybody must 'carry their own weight'
Turning to the question of compliance with the agreement, which is key to its success, Benigni warns that Kazakhstan may not be hugely interested in demonstrating discipline. With regards to Russia, he believes that domestic oil companies will fall in line with President Vladimir Putin's wishes. Therefore, provided Putin is on board, Russia should co-operate – yet the price the president and his compatriots will pay for participation is rising.
Saudi Arabia's Khalid Al-Falih described overall compliance to date as "very, very impressive".
However, he admitted there is room for improvement from respective members going forwards and predicted, "everybody will carry their own weight."
Turning to other key deal participants, Benigni highlights that Iran and Iraq are coming from very different starting points.
"The Iranians don't yet have more volume to offer so they must be very happy with this on the table. For the Iraqis it is more of a question mark because they could do much more - so for them not to do it is like – really?"