But Ukrainian officials said the shuffle was part of changes underway at the ministry, and the elimination of the dual position. Under the changes, the first deputy post will no longer be filled by the head of Naftogaz.
Ivchenko had been a key player in Ukraine?s difficult gas negotiations with Russia, which have grown increasingly strained as the new year approaches without a deal.
Moscow has proposed more than tripling the price of gas from the current $50 per 1,000 cubic meters, a proposal rejected by Ukraine. The dispute could jeopardize supplies of Russian gas to the European Union, which gets almost half of its gas imports from Russia, mostly piped through Ukraine.
Ukraine?s Fuel and Energy Minister Ivan Plachkov was expected to head to Russia Monday for the latest round of negotiations.




