Saudi Arabia has been pumping steadily at about 9.2 million barrels per day for several months, a senior Gulf Opec delegate said.
The output is some 300,000 barrels per day above the kingdom's formal Opec target.
Top exporter Saudi Arabia is the only Opec member that can easily add significant amounts of extra oil to the market.
The United States on Tuesday called on Opec to increase its production by a modest 300,000 barrels per day (bpd) to 500,000 bpd to try to contain economic slowdown.
But most of the 13 Opec ministers, who meet in Vienna on Wednesday, have said they think the group's output policy should remain unchanged. - Reuters