This one-well gas pool was produced by the Sterling Unit No. 41-15 well between the measured depths of 9,440' and 10,026' (7,905' to 8,326' TVD). From April 1999 to January 2005, the pool yielded 436,340,000 cubic feet of gas and 7,539 barrels of water. It has been shut in since February 2005.

At Beluga Formation level, the Sterling Field structure consists of a broad anticline that trends northwest and lies about 7 miles east-southeast of the City of Kenai. The flanks of the anticline dip with a slope of about 100 to 130 feet per mile (about 1° to 1-1/2°).

In the Sterling Field area, the Miocene-aged Beluga Formation is composed of interbedded, nonmarine mudstone, siltstone, and sandstone with minor amounts of lignitic to sub-bituminous coal that occurs in thin (less than 5 feet thick), regionally discontinuous beds. The Beluga formation is characterized by a low net-to-gross sand ratio. Beluga sediments were sourced by the erosion of metasedimentary rocks of the Kenai-Chugach Mountains to the east, and deposited by westward-flowing, high-gradient, shallow, braided streams that, over time, built alluvial fans toward the center of the Cook Inlet Basin. Because this fan sequence prograded toward the west, the Beluga depositional sequence grades upward from thin, outwash-plain sandstone deposits in the lower part of the formation to thicker, higher-quality, anastomosing-stream sandstone deposits in the upper formation. Mudstone and coal beds are common to abundant in the Beluga Formation, which is unusual for alluvial fan deposits. The nearby Kenai-Chugach Mountains are composed mainly of metamorphosed fine-grained, deep-sea sediments (metasiltstone, metasandstone, argillite, slate, and phyllite). Erosion of these fine-grained rocks apparently supplied large quantities of silt and mud that was spread over the alluvial fan surfaces by sheet-floods and then stabilized by abundant vegetation. As a result, Beluga sandstone reservoirs are commonly laterally discontinuous and isolated from one another by mudstone and siltstone.