MOSCOW, December 2. /TASS/. The Federal Antimonopoly Service has initiated proceedings on the violation of antimonopoly legislation against Russian gas giant Gazprom because it did not provide access to the Sakhalin-2 gas transportation system to oil giant Rosneft, the authority said in a statement on Tuesday.

A Gazprom official has to give explanations on the issue and to sign a protocol on administrative violation on December 9.

In August the watchdog initiated proceedings on the violation of antimonopoly legislation by Sakhalin Energy, whose sole shareholder is Gazprom. The hearing of the case was postponed four times, at the moment it is scheduled for December 10.

In June, Gazprom denied Rosneft access to the Sakhalin-2 pipeline operated by Sakhalin Energy, saying that there is no free capacity.

Rosneft plans to build a liquefied natural gas plant in the Sakhalin Region in the Far East of Russia and to use Gazprom’s pipeline to supply gas to the plant.