UPDATE 1-German state-owned SEFE says gas storage build-up was its own decision

(Adds SEFE quote, background throughout) FRANKFURT, Sept 16 (Reuters) – Germany's SEFE, a gas importer under government control, said on Wednesday it had independently decided to increase natural gas

(The article has been published through a syndicated feed. Except for the headline, the content has been published verbatim. Liability lies with original publisher.)