The consultancy estimates that Australian LNG export revenue reached A$4.27 billion ($2.78 billion) last month.
This compares to A$4.82 billion in the month before.
Based on shipping data, EnergyQuest estimates that Australia exported 5.94 Mt of LNG in September 2025, totaling 87 cargoes.
According to EnergyQuest, this was the lowest monthly total of LNG exports since June 2021 when 5.82 Mt was exported.
Also, it marked a decrease compared to August 2025, when Australia exported 6.35 Mt and 92 cargoes.
When annualised, September’s exports represent 72.3 Mtpa, equivalent to 84 percent of total Australian nameplate capacity of 86 Mtpa.
Maintenance
Over the autumn and winter months, Western Australia shipments have been affected by scheduled maintenance.
This includes Wheatstone in late April 2025 (which reduced production and shipping from the project), the North West Shelf project during May (with up to one train at the project offline throughout May and into June), and Gorgon during June and into July (with the equivalent of one train offline), the consultancy said.
The Queensland Curtis LNG (QCLNG) project had the equivalent of up to one train offline for approximately two weeks during May and June.
Moreover, Australia Pacific LNG (APLNG) undertook scheduled maintenance during July with up to the equivalent of one train being offline for up to approximately two weeks during the month, as well as in September, when it had the equivalent of half a train offline for two weeks, the consultancy said.
In June, the Gladstone LNG (GLNG) project undertook planned maintenance with up to one train being offline for approximately three weeks, which carried over into the first week of July.
Further, GLNG had a follow-up planned maintenance period during August, which continued through most of September with up to the equivalent of half an LNG train being offline, the consultancy said.

