Saudi Arabia, the world’s biggest oil exporter, is planning to increase its output next month by about a half-million barrels a day, according to analysts and oil traders who have been briefed by Saudi officials.

The increase could bring Saudi output to a production level of 10 million barrels a day, which, if sustained, would be the kingdom’s highest ever. The move was seen as a sign that the Saudis are becoming increasingly nervous about both the political and economic effect of high oil prices. In recent weeks, soaring fuel costs have incited demonstrations and protests from Italy to Indonesia.

Saudi Arabia is currently pumping 9.45 million barrels a day, which is an increase of about 300,000 barrels from last month.

While they are reaping record profits, the Saudis are concerned that today’s record prices might eventually damp economic growth and lead to lower oil demand, as is already happening in the United States and other developed countries. The current prices are also making alternative fuels more viable, threatening the long-term prospects of the oil-based economy.