where is it all heading, page-19

Remember though Bird, that Target are not the operators...

but following is from the Company, which hope answers your questions.

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the "serial" approach to production is very common in the US. By completing and producing one zone at a time - and by starting with the deepest sands - you maximise the return from that sand without risking or potentially compromising any other shallower zone. Occasionally we do co-mingle production from more than one sand - but they need to be in relatively close proximity and effectively from the same formation.
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