KIEV, May 20 ??“ RosUkrEnergo, a controversial natural gas trader and the only supplier of gas to Ukraine, refused to sell gas to Naftogaz Ukrayiny throughout the end of 2006, a newspaper reported citing obtained documents.

Instead, RosUkrEnergo would probably seek to sell all available gas to a gas distributing joint venture it controls and that competes with Naftogaz on the market, Zerkalo Nedeli reported Saturday.