Kiev, UKRAINE: (FILES) – A file picture taken 01 January 2006 shows a gas pressure-gauge and the valve of the main gas-pipe not far from Kiev. German energy giant E.ON said 29 August 2006 that it has signed a major long-term gas supply contract with Russian gas giant Gazprom, helping to safeguard European gas supplies for the next 30 years. AFP PHOTO / SERGEI SUPINSKY (Photo credit should read SERGEI SUPINSKY/AFP/Getty Images)