Target Energy - Australian petroleum exploration and production company.

The Wolfberry play, originally named because of the commingling of production from the Wolfcamp and Spraberry Formations, is a major low-permeability oil play in the Permian Basin.

Located principally in western Texas, the Permian Basin is one of the most prolific oil-producing basins in North America.

The largest accumulation of oil and gas reserves in the Permian Basin is found in the Spraberry trend, which covers considerable parts of six counties and has a total area of approximately 2,500 square miles. The Spraberry trend is ranked third in the United States by total proved reserves and seventh in total production.

The Wolfcamp, stratigraphically below the Spraberry, is itself a significant producer in the Permian Basin. It is equally well known for its low permeability in most areas in the basin.

Advancements in completion methods have made it possible to combine production from the Spraberry and Wolfcamp zones in areas that were previously uneconomic on a stand-alone basis, achieving robust economic results. The play has continued to evolve to include additional zones below the Wolfcamp. Wolfberry now refers to any well with commingled production from the Mississippian through the Spraberry.

Completions in the Wolfberry are generally anticipated from a 2,500 to 3,000 foot gross interval, and located between 7,000 to 10,500 feet drilling depth. Completions begin at the bottommost formation, and can include up to 8 to 12 fracture stimulations.

Senior oil and gas producers, such as Apache, Concho Resources, Pioneer Natural Resources, Oxy USA, Laredo and Chesapeake are actively developing the Wolfberry and Wolfcamp plays.

More than 2,000 wells have been drilled since the beginning of the play in late 2007.