Apache has said that it is advancing with the development planning on the Balnaves oil and gas field in in license WA-356-P offshore Western Australia following three successful wells proved that the reservoir is considerably productive.

Balnaves is an oil accumulation in the Mungaroo formation in a separate reservoir beneath the large gas reservoirs of the Brunello gas field.

The recent Balnaves-3 appraisal well test-flowed 9,076 barrels of oil and 13 million cubic feet of natural gas from a 16ft perforated section, confirming good reservoir deliverability.

The Balnaves-1 discovery was drilled in 2009 as part of a series of gas exploration and appraisal wells in the Julimar-Brunello complex.

Balnaves-1 encountered 64ft of net oil pay in the B20 sand – a light, high-quality oil accumulation at about 10,600ft to 10,700ft below sea level.

Balnaves-2 was a sidetrack from the discovery, and Balnaves-4 was a sidetrack from Balnaves-3.

The Julimar and Brunello fields are the gas discoveries that will be developed to provide gas for the Wheatstone liquefied natural gas development operated by Chevron subsidiary Chevron Australia.

Apache Julimar will operate the design and construction phases of the WA-356-P upstream part of the Wheatstone project.

Apache Julimar has a 65% interest in offshore license WA-356-P and a 16.25% equity interest in the Wheatstone project.

KUFPEC Australia (Julimar), a subsidiary of Kuwait Foreign Petroleum Exploration, owns the remaining interest in the offshore license and an 8.75% interest in the Wheatstone project.