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

Nicola Willis: Finance Minister brushes off worries about fast track for housing projects
07:22

Mike Casey: Rewiring Aotearoa CEO on shortage of electricians as solar panel demand soars
05:12

Richard Harrison: Auckland Transport Public Transport Director on CRL first weekday, Warriors this weekend
02:55