PARIS—European manufacturers are preparing for possible natural-gas rationing that would force them to shut production amid fears that Russia is about to cut off gas deliveries via its main artery to Europe.
On Monday the Nord Stream pipeline, which runs 760 miles from northwest Russia under the Baltic Sea to Germany, will go into annual maintenance for 10 days, repairs that are routine in peaceful times. European officials say that Moscow, which has already cut gas deliveries to 40% of the pipeline’s capacity, might not bring it back online.
