Kansas
SemKan Offerle Plant - SemKan, part of SemGas’ operations, owns and operates a nitrogen rejection and helium recovery plant near the town of Offerle, Kansas. The plant is served by approximately 187 miles of low-pressure gathering line and is capable of treating and processing 12.5 MMcf per day of 600 Btu natural gas. The plant delivers residue gas into the KMIGT system.
In the same area of Edwards and Pawnee Counties, SemGas owns a separate 300 mile conventional low-pressure gathering system that gathers gas of sufficient quality that it does not need to be treated for nitrogen removal. SemGas dehydrates and compresses this gas into the Northern Natural Gas system.
Oklahoma
Nash Plant and Gathering system – SemGas developed this grassroots project beginning in 2005 to gather and process natural gas in Garfield, Grant and Alfalfa Counties in northwest Oklahoma. The Nash Plant is a cryogenic processing plant located approximately three miles south of the town of Nash and is currently capable of processing up to 40 MMcfd. Plant products are delivered into the ONEOK Medford NGL system for fractionation at Medford or Conway. The residue gas is delivered into the Southern Star pipeline system.
Eufaula Pipeline system – The Eufaula Pipeline system provides an additional market outlet in the active Hartshorne coal bed methane play in McIntosh and Hughes Counties, Okla. The 40-mile gathering system serves the area between the North Canadian and South Canadian Rivers. The gas is dehydrated, compressed and delivered into the Enogex system.
Texas
SemGas acquired the Sherman Plant and gathering system in September 2006. The Sherman Plant is a 23 MMcfd lean oil processing plant and is served by more than 300 miles of low pressure gathering lines in Cooke and Grayson Counties, Texas. The plant products are currently trucked to the Targa’s Breckenridge facility where they are then transported to Mont Belvieu. The residue gas is delivered into the Atmos Pipeline system.