Oil price retreats from 18-month peak on high OPEC output

Oil came back from its highest level since July 2015 on Tuesday as new data from OPEC showit's pumping out huge amounts of oil even as the cartel is getting set to tighten the spigots in the new year.

The price of a barrel of the North American oil benchmark, West Texas Intermediate, closed down 86 cents at $50.93 US abarrel. It hit its highest level since July 2015 a day earlier, above $52 a barrel.

• Iran, Iraq squabble with Saudis ahead of OPEC meeting

Freight Investor Services International fuel broker, Matt Stanley, said the oil market was trying to find "some kind of level it is happy settling at". "I have a feeling it is more towards the $50 per barrel range than $55 per barrel, not least because there is still ambiguity around production levels."

Oil has marched steadily higher for the past two months ever since rumours came out that the Organization Of Petroleum Exporting Countries was getting close to an agreement to limit how much crude oil it is putting out, starting next year.

This weekend, the cartel will meet with non-members in Viennato hammer out the details of a deal that is expected to boil down to a cut of 600,000 barrels per day by non-members on top of the 1.2 million barrel cut the cartel has already agreed to.

• ANALYSIS: OPEC's heft is waning in a world awash in cheap oil

Tighter supply is good news for oil investors over the longer term, but for nownumbers from November show OPEC is currently pumping out much more oil every day, almost 35 million barrels a day.

And Russia reported November average daily oil production at 11.21 million barrels a day, its highest in nearly 30 years. That means OPEC and Russia alone produced enough to cover almost half of global oil demand, which is just above 95 million barrels of crude oil every day.

In January, OPEC has promised to limit its output to 32.5 million barrels and that figure could fall below 32 million after this weekend's negotiations.