They get some from Central but most from Eni's Blacktip. It was the signing of the Blacktip contract which stranded the Amadeus gas in the first place - PWC was getting all its gas needs from Blacktip so Palm Valley gas sales ceased and Mereenie gas production went back into reinjection to provide pressure support for oil production.
IIRC it was only just before CTP took over Magellan's assets that Magellan signed a contract with PWC for a small volume of gas which is what CTP's current contract from Palm Valley is.
