Following the success of Yarrow-1 and Flax-1, the result stumped Innamincka which has enjoyed a solid success rate in the Cooper Basin.

“We had success on the west side of the field and the east side without too many problems but as soon as we tried the appraisal well in the middle we hit a tight formation,” said Innamincka managing director Ross Wecker.

“Now we will go back to Yarrow-1 to test the minimum size of the field.

“Future testing now will also be needed to prove that Yarrow-2 was a bit of an anomaly in the field before we fully commit to the further five wells we have planned,” said Wecker.

Yarrow-2 revealed that the gas accumulation in the Tirrawarra Sandstone intersected in Yarrow-1 had extended to the Yarrow-2 location.

Additionally the presence of new gas saturated Patchawarra Formation sandstones at the Yarrow-2 location was confirmed. These sandstones were not present at the Yarrow-1 location and offer the potential for additional gas (and possibly oil) down structure from Yarrow-1.

However, the tight reservoirs in both the Tirrawarra Sandstone and Patchawarra Formation have ruled out any commercial production from the well.

Additional information from Yarrow-2’s wireline logs and production testing of Yarrow-1 will be required before development planning, including possible future drilling, of the Yarrow field can be finalised.

Participants in the PEL103 Block Joint Venture are Innamincka Petroleum Limited (operator) 35% and Vernon E Faulconer Australia 65%.

Shares in Innamincka recovered slightly from yesterday’s tumble to 56 cents, sitting at 66 cents at the time of printing.