National joint-stock company Naftogaz Ukrainy has announced a tender to buy exploration works, the press service of the state holding has reported.

The tender is divided into ten lots, which include the laboratory petrophysical, geochemical, electrometric and acoustic exploration of well cores and fields, the assessment of oil and gas fields prospects, designing digital boring logs, and designing methods for geological and economic appraisal of alternative sources of fossil fuel (shale gas), etc.

The bids can be submitted by July 16, 2015. The works are to be carried out by December 31, 2016. The expected cost of the works is UAH 35.3 million.

"Ukrainian and foreign bidders are invited to participate in the tender. They are to comply with qualification criteria, have professional equipment, skilled workers and experience of fulfilling similar contracts," Naftogaz said.

Naftogaz Ukrainy has special permits to use deposits and oil and gas fields on nine sections. They are located in Poltava, Luhansk regions and the Black Sea shelf.

Naftogaz Ukrainy unites oil and gas production assets in Ukraine, and is the country's gas transit, underground gas storage, and oil pipeline transportation monopoly.