The company told the ASX that Berwyndale South-60 and BS-9 have produced respective weekly average flow rates of 2,145,000 cubic feet per day and 1,993,000 cfd.

“This field is steadily increasing its production and these results from our top two wells are extremely encouraging,” QGC managing director Richard Cottee said.

“We are considering increasing our nomination to CS Energy from 4 PJ p.a. contract volume (11 million cubic feet/day) to commercialise the excess gas, rather than shuttling in wells.”

Cottee added that overall production from the field’s 23 wells increased during the first week of full production.

“QGC will supplying Braemar Power Station early, as soon as we are interconnected which will occur next month,” he said.

QGC is operator and majority owner of the project, with a 90% interest. Sentient Gas Australia holds the remaining stake.

The JV has an unconditional gas sales agreement with CS Energy to supply 4 PJ of gas a year for the next 10 years to the generator's Swanbank E Power Station, near Ipswich in southeast Queensland.

Berwyndale South is QGC's first gas field development and the CS Energy contract is its first commercial supply agreement.

The CS Energy agreement is the first of three unconditional 10-year contracts for QGC to supply coal seam gas from the Surat Basin. QGC is contracted to supply another 4 PJ of gas a year from Berwyndale South to the Braemar Power Station starting in October, and 7.4 PJ a year to Incitec Pivot between July and September 2007 from the Argyle East gas field, in which QGC holds a 59.37% stake.

The contracts total a minimum of 15.4 PJ a year over 10 years, with options to increase to 22.1 PJ a year. QGC's equity share of the contracts is for a minimum of 11.6 PJ a year with options to increase to 17.3 PJ a year.