KIEV, Nov. 27 - Ukraine's cabinet of ministers has extended for another 30 days the timeframe for the conclusion of a production-sharing agreement with the companies Chevron and Shell for the production of hydrocarbons at the Oleske and Yuzovske fields.

The pertinent resolution - No.1073 of October 29 - was posted on the government's portal Tuesday.

In early May of this year, an inter-agency PSA commission determined Chevron the winner for the development rights to the Oleske field (Lviv and Ivano-Frankivsk regions) and Shell for the Yuzovske field (Kharkiv and Donetsk Regions) rights.