KIEV, June 15 – Italy's Eni S.p.A announced it has signed an agreement with national joint-stock company Nadra Ukrainy and Britain's Cadogan Petroleum on the acquisition a 50.01% stake in Zakhidgazinvest LLC (Ivano-Frankivsk region).

Zakhidgazinvest at present holds licenses to develop nine shale gas fields in Lviv region, on a gross area of around 3,800 square kilometers, Eni said on its Web site.