The arrangement, yet to be officially agreed by the two countries' state gas firms, follows months of negotiations by senior government officials.
Russia turned off Ukraine's gas supply in January amid a bitter price dispute
The row sent shockwaves across Europe, as much of Russia's gas exports to EU countries are transported across Ukraine.
Ukrainian Prime Minister Viktor Yanukovych and his Russian counterpart Mikhail Fradkov said a deal had been reached in principle.




