(Reuters) - Russian gas deliveries to Germany via the Opal pipeline fell by around 30 percent on Wednesday after Poland successfully blocked a deal giving Gazprom a bigger share of the pipeline's ...

WARSAW, Dec 5 (Reuters) - Polish state-run gas company PGNiG has sued the European Commission over its decision to grant Russia's Gazprom more capacity on the Opal pipeline through Germany, PGNiG said ...