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Southwestern Energy (also known as SWN, NYSE: SWN) is an oil and natural gas company based in Houston. Texas. Its primary current activity is, according to the company, "current operations being principally focused on development of the unconventional gas reservoir located on the Arkansas side of the Arkoma Basin"
Seaboard Wellhead Inc is a Denver, CO-based company in the Energy and Utilities sector.
Houston Continentoil is a Houston, TX-based company in the Energy and Utilities sector.
Cust-O-Fab Inc is a Sand Springs, OK-based company in the Energy and Utilities sector.
BRG Petroleum Corporation is a Tulsa, OK-based company in the Energy & Utilities sector.