Natural gas gathering and processing systems located in Oklahoma, Kansas and Texas. The Chaney Dell natural gas gathering and processing system is located in northwest Oklahoma and southern Kansas, near the center of the Anadarko Basin. Throughput on the Chaney Dell system averaged 226 Mmcf/d in 2006, and is centered within an active drilling area. This system consists of two active processing facilities. The Midkiff-Benedum natural gas gathering and processing system, which is approximately 73% owned by APL, is located in the Spraberry Trend of the Permian Basin, near Midland, Texas. In 2006, the Midkiff-Benedum system had approximately 139 Mmcf/d of average throughput.