KIEV, Aug. 19 - Ukraine’s national energy company, Naftogaz Ukrayiny, will appeal a recent Ukrainian court ruling obliging the company to return 12.1 billion cubic meters of natural gas to RosUkrEnergo, the energy and fuel ministry said Thursday.

The ministry reacted to the August 13 court ruling that confirmed an earlier ruling by a court in Stockholm resolving the dispute in favor of RosUkrEnergo.

The ruling by the Ukrainian court was needed for RosUkrEnergo to receive the gas from Naftogaz.