The Perth-based junior said the L44-H well, about 3.25km north of the producing NS3-D1 well, was producing good quality, 35 degree API oil with a small amount of water.

“We now have three producing wells flowing oil on the upfaulted Na Sanun East Field and one producing well flowing oil in the downfaulted Na Sanun Field,” Carnarvon chief executive Ted Jacobson said.

“These are all within the new fractured volcanic reservoir which has now become the major producing reservoir for our Phetchabun Basin Permits.”

The well penetrated the top 14.5m of the target volcanic reservoir interval at a depth of 866m, with electric logs indicating the best volcanic reservoir section yet encountered in any well over the entire interval.

Carnarvon said this has since been confirmed by the excellent oil flow rate.

L44-H is the first appraisal well drilled into the central fault compartment of the Na

Sanun East structural closure.

“The test results confirm the hydrocarbon potential of this second large fault compartment within the NSE structure,” the company said.

“This is in addition to the area of confirmed hydrocarbon potential within the southern fault compartment of Na Sanun East that has been penetrated by the producing wells POE-9 and NS3-D1.”

An additional three well locations have been chosen to appraise this central fault compartment, with drilling expected to start by year-end.

One of these wells will attempt to define the unknown oil water contact, which Carnarvon said would help calculate reserves estimates.

An additional seven drilling locations in the central fault compartment are expected to receive environmental approval in the next 30 days.

With the addition of L44-H well, the Carnarvon-Pan Orient Petroleum joint venture is currently producing 2500bopd.