Ann: Quarterly Report - Q1 FY24, page-46

Econo - COE has not prepaid for the work of the Helix rig. COE did execute the contract and pricing for the Helix to do the remediation work way back. I think, but not certain, that todays pricing would be way, way higher. I think, but not 100% certain, that the $195m approx cost for the BMG abandonment costs would include the pre-abandonment cots already incurred.
Yep, the payment for the BMG project big spend is yet to come. I don't know what the terms of payment are.

But the payment is already funded by way of the existing debt facility.

The big issue for everyone is the final cost of Helix work. The $195m is best $185m-$195m is "fluid."
It depends on the timing of rig arrival, the weather, any operational problems conducting the abandonment.
It is those issues which have driven the price down (plus Orbost).
I am tipping BMH cost above $200m.