A total of 99.8 million metric tons of oil were sold on the domestic market and 124.9 million tons were exported.
In June, Russia increased oil production by 1.3% compared to last year's indicator. In June 17.1 million tons were sold inside the country and 20.7 million tons were sold overseas, with exports totaling 53.9%.
The statistics service said oil exports comprised 33% of Russia's total exports and 53.4% of its fuel and energy exports. A year ago, these figures were 30.9% and 54.1% respectively.
The statistics service also said about $32.5 billion of oil revenues had been transferred to foreign currency accounts of companies in the year's first half, which is 28.7% more than the amount transferred during the same period in 2004. Current foreign currency accounts, in particular, received $27 billion (a 79.2% growth).