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Apache makes major gas discovery at Zola well

Apache has made a large gas discovery in the Zola-1 exploratory well on the North West Shelf of Australia.

The Zola-1 discovery well and the subsequently drilled sidetrack appraisal well Zola-1/ST-1 have confirmed the existence of sandstone layers with 427 feet (130 meters) of net gas pay in an area south of the giant Gorgon gas field, stated Apache.

Apache is requesting new 3D seismic data to further assess the potential of the discovery, which is expected to commence in mid-2011. The sidetrack appraisal well to the discovery well was drilled to a total depth of 15,463 feet (4,713 meters). An extensive wireline measurement and pressure testing program confirmed the presence of gas within several high quality sands of the target Triassic Mungaroo formation.

Both wells, drilled in a water depth of 935 feet (285 meters), will be plugged and abandoned. Apache operates WA-290-P, located offshore Western Australia, owning a 30% interest; Nippon Oil Exploration owns 25%; OMV Australia owns 20%; Santos Offshore owns 15%; and Tap owns 10%. 





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