The Stabilization Fund stood at $76.9 billion as of July 1, the Finance Ministry said last week.
"I think that documents outlining the infrastructure for managing this part of the fund will be submitted to the government in fall," Mikhail Kopeikin, deputy head of the government staff, told reporters on the sidelines of a Russian-Swiss regional cooperation forum in Geneva.
Kopeikin said the government had already decided to divide the Stabilization Fund into two parts: funds for future generations, or an untouchable government reserve, and funds to be invested in more profitable but risky operations.
He said the share of the fund to be invested, the investment instruments and the manager of the operations remained to be decided.
"At the moment, the most preferable option is the Central Bank using external management and major investment funds," Kopeikin said.
Sergei Storchak, a deputy finance minister, told Russia's respected business daily Vedomosti that the Central Bank could start managing Stabilization Fund sources in mid-July.
He said the Justice Ministry had registered a Finance Ministry regulation to establish currency structure of invested funds. According to the regulation, 45% of securities will be acquired in dollars and euros, and 10% in British pounds. The minimal term of bond maturity is three months and maximum three years.
