Ukrainian national oil and gas firm Naftogaz said it filed a complaint to the European Commission accusing Russian energy giant Gazprom of anticompetitive practices in relation to the Nord Stream 2 pipeline which bypasses Ukraine, according to RT.com.

Via the complaint, the Ukrainian state-run company proposes “a series of remedies that would miti-gate Gazprom’s anticompetitive behavior,” the statement reads. Naftogaz wants the Russian corporation to make gas “available to European purchasers on Ukraine’s Eastern and Western borders at a price equal to the price offered to Nord Stream 2 customers adjusted for relevant transportation costs.”

The document was prepared in close cooperation with “European best experts and lawyers,” Naftogaz executive director Yuriy Vitrenko posted on Facebook.

The Ukrainian company says that the Nord Stream 2 pipeline, which is currently being constructed by Gazprom in partnership with five European energy majors, will change the direction of gas flows, making “virtual reverse flows” through Ukraine impossible.

According to Naftogaz, virtual reverse flows represent a scheme of gas deliveries that allows Ukraine to purchase the Russian fuel from European buyers by acquiring its share during the process of transiting.

The Ukrainian corporation also accuses Gazprom of entirely bypassing “the Ukrainian gas transmission system, which would be left stranded, or at least significantly marginalized.”