MOSCOW, Jan. 22 - RosUkrEnergo AG, the only supplier of natural gas to Ukraine, said it will probably increase its gas exports to Europe by a third to $2.9 billion in 2007, a company official said.

Konstantin Chuychenko, a Gazprom official and the top manager at RosUkrEnergo, said the company will boost the exports to compensate some unprofitable gas contracts last year.