The country's oil output has reached around 1.6 million barrels per day and exports are at around 70 percent of that figure, Libyan Oil Minister Abdulrahman Ben Yazza said on Monday.

"The challenge is to maintain and increase this production," Ben Yazza told an oil conference in Tripoli.

Asked about Libya's oil exports figures, he said: "Almost 70 percent of this production."

Meanwhile, Libya's largest refinery, Ras Lanuf, is on its way to processing around 190,000 barrels per day after it restarted in late August, National Oil Corporation Chairman Nuri Berruien said on Monday.

"We got to 190,000 but then we had a technical problem. They reduced production to about 160 for a few days. It's going back hopefully to 190,000 bpd," he told reporters.

The facility had a pre-war output capacity of 220,000 bpd.

Ras Lanuf was ready to resume operating late last year, but met with several delays. Industry sources say there was a dispute between the NOC and its UAE-based partner in the plant over payments for crude oil.

Asked if an agreement had been found, Berruien said: "We're working on it".