Ukraine's Prosecutor General's Office is investigating a case opened against the managers of PJSC Ukrnafta on charges of abuse of office, as a result of which the company's enterprises fell short of over UAH 640 million.

"Ukraine's Prosecutor General's Office has opened a criminal case against joint-stock company Ukrnafta's managers, who committed a criminal offense under Part 2 of Article 364 of the Criminal Code (abuse of power)," Prosecutor General's Office speaker Yuriy Boichenko said at a briefing in Kyiv on Tuesday.

Boichenko also said that an action had been brought under the same article against employees of the Ukrainian Interbank Currency Exchange.

Prosecutors' checks established an unlawful reduction in selling price during an auction to sell crude oil and gas condensate on the exchange on July 2014.

"In particular, in violation of laws of Ukraine, the managers of Ukrnafta and the Ukrainian Interbank Currency Exchange sold almost 314,000 tonnes of crude oil and gas condensate at a starting price without VAT. As a result of this, Ukrnafta fell short of over UAH 640 million," Boichenko said.