KIEV, April 10 - Ukraine’s national gas company Naftogaz Ukrayiny is getting more optimistic over an upcoming ruling by a court in Stockholm in a gas supply dispute with Russian gas company Gazprom, Andriy Kobolev, the head of the state-owned company, said.

The court is shortly expected to issue a landmark ruling over a natural gas supply contract between Naftogaz and Gazprom, while a separate ruling over their gas transit contract is expected by June.