Pohokura is the country's biggest gas producer and in recent years has met around a third of total demand.
Production from the offshore Pohokura gas field is to be cut for a third time in a year next month.
OMV, which last month became operator of the field from Shell, plans a range of interventions in the field's offshore wells to "re-establish" the deliverability from those assets.
The work
means that, for safety reasons, production from the five offshore wells will be stopped for about 30 days - 12 days in February and a further 18 days during the rest of the campaign.
"We anticipate that the onshore wells will be available to flow during this campaign, with no impact on onshore production levels," said Gabriel Selischi, OMV's senior vice-president for Australasia.
Pohokura, now owned by OMV and Todd Energy, is the country's biggest gas producer. The field, off the coast of Waitara, typically delivers more than 70 petajoules of gas annually from five offshore wells and three wells drilled from onshore.
