On 13 October 2005 Gazprom's export arm Gazprom Export signed a contract with German gas company Wingas, a joint venture of Gazprom and Wintershall (subsidiary of BASF), to supply of natural gas per year for 25 years [REF].
On 29 August 2006 Gazprom and E.ON Ruhrgas signed an agreement to extend current contracts on natural gas supplies and have signed a contract for an additional per year through the Nord Stream pipeline [REF].