From the latest Queensland Gas Market Review, released yesterday:

Based on these numbers, and a forecast gas price of $7-8/GJ, coal seam gas (CSG) producers would earn total revenues of $20-30 billion per annum by 2030.

The Australian has coverage of the potential impact on industrial customers of higher gas prices (due to local prices becoming linked to international prices as LNG exports expand):

Local gas buyers are paying a high price for the export surge