shell spudded palta-1, page-20

Whether the costs are charged by the operator in advance or arrears seems to vary. MRO invoices in arrears but, then, MRO is a different kind of animal and the fields in which AUT participates are more mature and producing a lot of cash flow. It would not surprise me if much of the cost is paid in advance but I could be wrong. The Frac will account for a very significant proportion of the costs and this one (24 stage if I remember correctly) is big.

I don't see the necessity for a CR yet but it obviously depends on what else they are about to do.