On Friday, Arc announced the well had reached a 2920 metre depth and would be deepened an extra 85 metres for a more flexible testing program. A core was cut over the Kockatea Shale between 2708 and 2763 metres, of which 21 metres or 38% was recovered.
Arc expects the hydrocarbon column, extracted from the Dongara and Wagina sections, to contain mostly gas with some oil indicated in the lower part of the section.
Due to hole conditions, sufficient wireline pressure measurements were not obtained to confirm hydrocarbon content and reservoir quality.
Case hole testing will now examine the hydrocarbon composition and whether the reservoirs are able to flow at commercial rates. Initial results are expected in about ten days.
Participants in L1 and L2 (excluding the Dongara, Mondarra and Yardarino fields) and Senecio 1 are: Arc Energy (50% - operator); and Origin Energy (50% - a wholly owned subsidiary of Origin).