Crude oil output from the Organization of the Petroleum Exporting Countries (OPEC) rose to 30.87 million barrels per day (b/d) in January from 30.83 million b/d in December. This leaves the organization overproducing its brand new production ceiling by 870,000 b/d, according to a just-released Platts survey of OPEC and oil industry officials and analysts.

A 200,000-b/d increase in Libyan production to 1 million b/d – just 600,000 b/d short of pre-uprising output early last year – more than offset combined reductions totalling 170,000 b/d from Angola, Iran, Nigeria and Venezuela. United Arab Emiratesproduction also saw a small increase of 10,000 b/d to 2.56 million b/d.

"Libyan production is clearly recovering steadily, and it will be interesting to see how the group accommodates these rising volumes, especially when OPEC is already substantially overproducing its 30-million-b/d ceiling and with the Vienna secretariat forecasting that demand for OPEC crude in the first quarter will be well below current production," said John Kingston, Platts global director of news.

The survey estimated output from OPEC kingpin Saudi Arabia at 9.8 million b/d, unchanged from December.

Earlier February 9, OPEC trimmed its forecast of demand for crude from its 12 members for 2012 as a whole to 30.04 million b/d from the 30.15 million projected a month ago.

But for the first three months of this year, OPEC slashed its previous forecast by 290,000 b/d, to 29.55 million b/d from 29.84 million b/d a month ago. This suggests that OPEC may need to rein in production over the next two months.

OPEC ministers in December agreed to set crude output for all 12 members, including Iraq and Libya, at 30 million b/d. But they did not set individual quotas.

For production numbers by country, click here.