Resources Minister Shane Jones is investigating whether to ration gas to keep some businesses going.
Fertiliser co-operative Ballance last week revealed it's considering a four-month temporary closure after it failed to renew its long-term gas deal.
It was outbid by Contact Energy, which is supplying homes.
Jones says he'll be focusing on what's doable, to help solve the shortage.
"We're not making any blunt decisions, for example, we've got hospitals and schools dependent on gas."
LISTEN ABOVE
Take your Radio, Podcasts and Music with you
