Just double checked ERSA, payment for Jet A1 changed 1 March. You either require a AMS carnet, OR CC accepted, outside work hours you need to give 1 hour PN , $150 callout fee. AMS is the only provider of Jet A1 at Halls Creek, not sure of the price per litre, but odds are it’s pretty expensive. So IF it is a fuel starvation event and you want answers about why it ran out of fuel, one question you have to ask is why they went past a serviceable bowser. Financial considerations and the financial viability of the company must be considered when addressing this question. BTW, I’m not blaming the crew, if fuel price was a consideration then it’s an organisational problem.