KIEV, Feb. 1 - Naftogaz Ukrayiny has sent a letter to the National Electricity Regulatory Commission of Ukraine with a proposal to review the prices of gas for households after the heating season.

Serhiy Volos, chief advisor to the chairman of the state holding, said during an open meeting of the commission that the price of natural gas extracted in Ukraine and supplied to households has not been reviewed since the end of 2006, while expenses of gas extracting companies continually grow.