Extraction from one of the world’s largest natural gas fields will end in October, the Dutch government announced Friday, turning off a lucrative source of revenue that also sparked unrest by causing a string of earthquakes.

“The gas tap will be turned off on Oct. 1. That means an end to extraction after 60 years,” Prime Minister Mark Rutte said.

However, he said it remains possible gas could still be pumped from the Groningen field after that date if there is a “perfect storm” of an extremely cold winter this year and a problem with storage of gas from other sources amid ongoing concerns about gas deliveries caused by Russia’s war in Ukraine.