Overview

U.K. North Sea

Apache entered the North Sea in 2003 after acquiring an approximate 97 percent working interest in the Forties field. Since acquiring Forties, Apache has actively invested in the field and has established a large inventory of drilling prospects through successful exploration programs and the interpretation of acquired 3-D and 4-D seismic data. Building upon its success in Forties, in 2011 Apache acquired Mobil North Sea Limited, providing the regional position with additional exploration and development opportunities across numerous fields, including operated interests in the Beryl, Nevis, Nevis South, Skene, and Buckland fields and non-operated interests in the Maclure field. In total, Apache has interest in approximately 1 million gross acres in the U.K. North Sea.

The North Sea Region continues to play an important role in the overall Apache portfolio by providing competitive investment opportunities across multiple horizons and potential reserve upside with high-impact exploration potential. In 2015, the North Sea Region contributed 13 percent of worldwide consolidated production and 9 percent of year-end estimated proved reserves. During the year, 23 development wells were drilled in the North Sea, of which 19 were productive. Apache has invested approximately $2.7 billion in infrastructureimprovements across all of its fields over the past decade resulting in significantly improved production efficiency and lower unit operating costs. With basin-wide leading production efficiency, our infrastructure and offtake capabilities have positioned the region to be allocated a higher percentage of capital dollars for drilling and production.

The Beryl field, which is a geologically complex area with multiple fields and stacked pay potential, provides for significant exploration opportunity. Following the completion of the first full-field 3-D acquisition since 1997, Apache recently announced two exceptional discoveries in the area, the K and Corona discoveries and is moving ahead with development and additional exploration efforts. The K discovery encompasses multiple commercial zones across three distinct fault blocks, including one fault block with over 1,500 feet of net pay and is projected to begin production mid-2017. The Corona discovery logged 225 feet vertical depth net pay in reservoir-quality sandstone. Apache has 55 percent and 100 percent working interests in K and Corona, respectively. The 3-D acquisition has also indicated the potential for several future prospects similar to K and Corona on Apache acreage in the Beryl area.

In addition to the K and Corona discoveries, Apache also announced an appraisal well drilled approximately 50 miles (80 kilometers) south of the Forties complex. The Seagull discovery logged 672 feet of net oil pay over a 1,092-foot column in Triassic-age sands. Further appraisal work will continue following the recent acquisition of a multi-azimuth 3-D survey. Apache is now operator of the license and has a 35 percent working interest in the project.

U.K. OPERATIONAL HIGHLIGHTS

  THIRD-QUARTER
2016
THIRD-QUARTER
2015
Oil production (Bpd) 49,192 58,330
Total liquids production (Bpd) 50,889 59,770
Natural gas production (Mcfd) 69,509 81,392
Barrels of oil equivalent per day 62,475 73,335

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