President Vladimir Putin will discuss natural-gas supplies during a visit to Ukraine amid disagreements between the neighbors similar to those that have previously disrupted deliveries to the European Union.
Putin and his Ukrainian counterpart, Viktor Yanukovych, meeting Thursday in the Black Sea resort of Yalta, plan to review energy ties as the countries prepare a new accord to expand cooperation in the gas industry, the Kremlin said Wednesday.
While as many as 12 documents will be signed, including an accord on nuclear energy, no agreements on gas are planned, said Yuri Ushakov, who advises Putin on foreign policy.
Gazprom chief executive Alexei Miller will also travel as part of the delegation, he said.
Yanukovych has refused International Monetary Fund demands to raise natural-gas tariffs for households to stem losses at state energy company NAK Naftogaz Ukrainy.
The former Soviet republic is seeking a discount on its existing 10-year gas-supply agreement with Russia, which Yanukovych calls "very unfair."
Gazprom made a $2 billion advance payment for transit of gas to the EU last month to help Ukraine buy the fuel for storage.
Ukraine, which relies on Russia for more than 70 percent of its gas and serves as a transit route to supply EU buyers, has sought to cut purchases to 27 billion cubic meters this year. It has also argued that the price it pays is too high.
Gazprom has said lowering volumes would violate the contract signed after a price dispute led Russia to cut supplies to Ukraine for almost three weeks in January 2009, disrupting EU exports.
The Moscow-based gas exporter is concerned about the amount of gas in Ukraine's storage and the speed with which it is being pumped.
Gazprom is urging NAK Naftogaz Ukrainy to ensure sufficient volumes in its facilities ahead of peak consumption in winter, Miller said on June 29.
The contract requires Naftogaz to buy at least 80 percent from the annual contracted volume of 52 billion cubic meters.
Putin and Yanukovych may also discuss Ukraine's jailed opposition leader, Yulia Tymoshenko, as they "touch upon any issues, including the most sensitive ones," Ushakov said.
Tymoshenko was found guilty last year of overstepping her authority as prime minister when signing the 2009 gas deal with Russia.
She says the case was engineered by Yanukovych to silence opposition before parliamentary elections in October. The EU, the United States and Russia have condemned her conviction.