Hmmm. Good question Modula. But my reasoning is that of the...

Hmmm. Good question Modula. But my reasoning is that of the shale substrate and the claystone. Sought of from a stable kind of rock into a less stable clay. The last thing you need is the well bore starting to swell as it absorbs oil and any water. So slowly as she goes.

But the real excitement is the next stage into the Willara. I'm higly expecting good oil shows that have probably migrated into the Goldwyer albeit drilling into a scorier(loose) rock which could be a problem. IMO