The group's principal activities are to own and operate natural gas gathering, transportation and distribution systems and related facilities in Texas and Oklahoma. In addition, it operates offshore in Texas and federal waters of the gulf of Mexico. The group's systems include approximately 769 miles of pipeline. The group gathers natural gas from producing properties owned by others and transports that gas to primary transmission pipelines. In some cases, it assumes the title and markets the natural gas directly to the end users such as agricultural, residential, industrial and commercial users, as well as to marketing companies. The group owns a license in the us for a patented process that removes nitrogen from streams of natural gas.