In 1988-1998 he was the CEO of the Surgut Gas Processing Factory.
From October 2005 to November 2006, he was the President of Sibneft (Gazprom Neft).
Since July 2004 Ryazanov has been a member of the Coordination Committee of RosUkrEnergo.
In 2000-2001 Alexander Ryazanov was a deputy of the State Duma.
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