Officials from Russia's gas giant Gazprom have been frequent visitors in the Turkish capital with rounds of talks with Turkish energy and pipeline officials since August. "The dialogue is still open," said one Turkish official. "But this is a complicated matter." Russian officials are asking for a change in the pricing formula, while their Turkish counterparts are seeking to lower the both the price and the quantity purchased. In August, however, Turkey and Russia agreed, after a series of negotiations in Ankara, on the solution of natural gas pricing dispute taking other Russian gas sales to Europe as a base while revising Turkey's purchase agreements, and also suspended a continuing international arbitration process. The Turks claim while Russian natural gas sales to European buyers were priced at around $100 per thousand cubic meters the Russian gas cost to Turkey $133 per thousand cubic meters. However, a misspelling of a formula in one of the three purchase agreements still tops the agenda of rounds of negotiations. Turkey is seeking to buy less gas at lower prices than it had pledged and previously rejected several price reduction offers by Gazprom as being too little. Turkish officials expect to save $16 billion in the next 25 years if they succeed in talks with Gazprom. They also seek to re-export unused Russian gas to mainly European buyers. Gas deliveries to Turkey through the $3.4 billion Blue Stream pipeline under the Black Sea were stopped in April by Turkey and restarted on 1 August in line with agreements. Meanwhile, Ankara is in a move to diversify its supply sources, and plans to receive Azeri and Turkmen natural gas by 2006, with a parallel line to trans-Caspian Baku-Tbilisi-Ceyhan pipeline. Presently Turkey is purchasing 67% of its natural gas from Russia, and the country this year became Gazprom's third-largest customer after Germany and Italy and ahead of France.