Russia will raise its oil export duty from the current $212.6 to $222 per metric ton from August 1, in line with a government resolution published on Wednesday.

The average oil price was $65.65 per metric ton from June 15 to July 14, Alexander Sakovich, deputy head of the Finance Ministry's customs department, earlier said.

Duty on light petroleum products will rise to $161.9 per ton from the current $155.5 and to $87.2 for heavy petroleum product from the current $83.8.

Last year, the government abandoned its previously accepted bimonthly adjustments of export duties based on the price of the Urals blend on global oil markets, and from December 1 switched to setting duties for oil and oil products on a monthly basis to respond more swiftly to changes in world oil prices.

The global financial crisis has forced Russia, which receives a large part of its revenues from oil exports, to gradually devalue the ruble amid capital flight and a fall in global oil prices, which declined from their peak of $147 per barrel in July 2008 to around $40 per barrel in early 2009, before climbing back to about $70 in recent weeks.