The fulfillment of the conditions of the trilateral protocol between Russia, the EU and Ukraine should be stated in the supplement to the contract between Naftogaz Ukrainy and JSC Gazprom, Ukrainian Prime Minister Arseniy Yatseniuk said.

"Naftogaz and Gazprom will sign a supplement to the contract, which contains technical questions about the fulfillment of this trilateral document," he said, opening the Cabinet meeting on Thursday.

Yatseniuk's press office Olha Lappo told Interfax, citing information possessed by Yatseniuk that an agreement had been reached that Gazprom had agreed to stop the unfair use of the "take or pay" contract condition.

In addition, Gazprom will pay Naftogaz directly for gas transit.

The next round of the trilateral gas talks began in Brussels on Wednesday evening and continued until 5:00 a.m. on Thursday. The Russian side expects the negotiations to resume on Thursday evening.