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Apache reports successful Heidelberg appraisal

Wednesday, Feb 22, 2012

Apache Corporation reported successful results of the Heidelberg-2 appraisal well, located in Green Canyon block 903 in the deepwater Gulf of Mexico. The well, which encountered approximately 250 net feet of oil pay in high-quality Miocene sands, was drilled to a total depth of 31,030 feet in approximately 5,000 feet of water, about 1.5 miles south and 550 feet structurally updip from the Heidelberg discovery well. Log and pressure data from the appraisal and discovery wells indicate excellent quality, continuous and pressure-connected reservoirs with the same high-quality oil. The initial Heidelberg discovery well was drilled in 2009 and encountered more than 200 net feet of oil pay.

A subsidiary, Apache Deepwater LLC, owns a 12.5-percent working interest in Heidelberg. Anadarko Petroleum Corp. operates the block with a 44.25-percent working interest. Other co-owners in the block include Eni (12.5-percent working interest), Statoil (12-percent working interest), ExxonMobil (9.375-percent working interest) and Cobalt International Energy, L.P. (9.375-percent working interest).

Source: Apache

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