The Federal Anti-Monopoly Service said Wednesday that it would seek a cap on the number of gas stations that can be owned by a single oil company.
"We introduced a proposal to the government, and it is already being discussed," Igor Artemyev, the watchdog's head, told the Federation Council.
The expansion of oil companies that own more than 50 percent of the market share in a single region will be limited under the proposed bill, he said.
The anti-monopoly watchdog said the new bill would mostly affect companies wanting to further expand their market share.
"We think the presence of one or two companies on a regional market is insufficient. There should be at least three," a spokesman for the watchdog said. "If the company has already reached its quota, it will be banned from expanding further under this legislation."