"The reduction of supplies and the fact that gas is not being pumped through a number of transit pipelines may bring pressure in the pipelines down and reduce deliveries to Europe and to Ukrainian consumers," Naftogaz said.
The body also includes the first deputy prime minister, cabinet ministers, and Naftogaz executives.
The HQ said public utility services and the population would be supplied with energy resources in full in any event.
Ukraine did not meet the deadline announced by the Russian gas monopolist, January 1, 2006. The country has resisted the market price of $230 per 1,000 cu m of natural gas in 2006, saying a more than fourfold price hike was ungrounded. Ukraine has insisted on a gradual move to the market prices for Russian gas deliveries.