KIEV, June 15 - President Viktor Yanukovych called for an investigation to be conducted in Ukraine before Naftogaz complies with a court order to return 11 billion cubic meters of gas to Swiss trader RosUkrEnergo AG (RUE) and pays 1.1 bcm in gas by way of a fine.

On June 8, 2010, the Stockholm Arbitration Tribunal made a further award in the long-running dispute between RosUkrEnergo and Naftogaz over the expropriation by Naftogaz in January 2009 of 11 billion cubic meters (bcm) of natural gas belonging to RUE. At the time of its expropriation, the gas belonging to RUE was being held in storage in Ukraine and was destined for export to RUE's customers in Europe.