Apache has confirmed the presence of 8,161 barrels of oil per day (bo/d) and 5.9m cubic feet of gas per day (Mmcf/d) at the Beryl Bravo B73y well, located in the UK North Sea.
Production began in August 2012, when the B73y well tested a Nansen reservoir containing 71ft of net oil pay and 245ft of net pay in three additional zones, which will be produced later.
The company owns a 50% interest in B73y well, which is a follow up to the B72 well that tested in excess of 11,600 bo/d and 13 MMcf/d in May 2012.
3-D seismic surveys of the Beryl Field will be completed in October 2012 and production from the field will help reduce the scheduled downtime of other assets in the North Sea from July to September 2012, Apache said.
G. Steven Farris, Apache chairman and chief executive officer, said: "Our early drilling results at the Beryl field have been excellent and we continue to move forward in assimilating the Mobil North Sea assets acquired at the end of 2011."
In other operational updates, the company announced the arrival of the jacket for the Forties Alpha Satellite Platform (FASP) in the Forties Field, the largest oil field in the North Sea.
The 90m bridged-linked processing facility and drilling platform will be commissioned in 2013.
Jim House, Apache vice president UK North Sea region, said: "Apache originally purchased 144 MMBoe of proved reserves within the Forties Field at a cost of $667m and has now produced nearly 190 MMBoe and still has 130 MMboe of proven reserves yet to deliver."
Apache acquired the Forties Field in 2003 and invested $4.3bn adding an estimated 18 years to the field’s life.
Image: The Forties-Alpha platform in the North Sea. Photo: courtesy of Apache.