KIEV, May 31 ??“ Naftogaz Ukrayiny, the national oil and gas company, owes $605 million for gas supplies this year not $400 million as had been earlier thought, a newswire reported citing a source at the company.

The greater debts suggest Naftogaz may require borrowing more money than has been previously thought in order to pay off the debt and shows the company??™s financial position was weak.