Sorry thought you were indicating the gas reservation policy was the bull case for APA - long week.
You're right it was for the below:
APA ECG expansion, stage 3 at $0.8-1.0bn adds ~40PJ of capacity to market at a cost of $2.15-2.40/GJ, slightly below the current haulage cost. Importantly, we see it helps AEMO avoid market intervention required for an import terminal to be economic near term. APA captures the benefit of growing peak capacity, but additional off peak to fill storage, and medium-term cover fall in Longford production. The latter potentially enables revenue growth above CPI as utilisation of the MSP increases from ~50%.
Irrespective of who forms government post election, neither party wants gas import pricing parity. APA's approach ensures Qld/NT can supply southern demand, which when combined with government policy avoids import parity. This is a distinct advantage to an import terminal.