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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"
Landecor is a Lehi, UT-based company in the Energy and Utilities sector.
Perfection Oil Co. is a Dubuque, IA-based company in the Energy and Utilities sector.