Several European countries reported a temporary drop in supplies after Russia earlier this year cut off deliveries to Ukraine over a gas price dispute. German politicians voiced concerns that the country might be too dependent on Russian gas.
Miller also said that work on a pipeline linking Russia and Germany through the Baltic Sea remains on track and that deliveries to Germany will start as planned in 2010.
He said "new initiatives" on energy are to be discussed during German Chancellor Angela Merkel's visit to Moscow on 16 January.
(AP, Reuters)