Last week, the company said its Amber Field, Oklahoma wells were producing 40% more gas than expected.

Now, it says the Greens Canyon-2 well flowed at 1.2 million cubic feet per day at 1575 psi on a 14/64 inch choke, before it was flowed back for connection to the existing sales line.

This followed a successful fracture stimulation of the Frontier Sandstone, while a treatment comprising 3,400 barrels of gelled water placed 215,000 pounds of 20/40 Carbolite proppant.

“The rate has exceeded the design expectation, and calculations based on the pressures observed during the treatment have determined an increase in the expected permeability,” managing director Terry Barr said.

“The flow rate has materially established that the Frontier, and by extrapolation the Muddy Sandstone, can be produced at economic rates from within the Greens Canyon Field.

“Whilst this had been determined from technical data, operational difficulties with the previous stimulations had meant that this rate had to be demonstrated in a practical sense.”

The initial flow rate is in line with an independent reserve report by Sproule and Associates in July, which determined a proved undeveloped reserve of 3.5 billion cubic feet per well, Barr said.

Further field development will continue with the sourcing of a suitable rig to drill the Sue Federal well, Barr said. The field is estimated to contain a recoverable potential of 74 billion cubic feet, he claimed.