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KONGSBERG is an international, knowledge-based group that supplies high-technology systems and solutions to customers engaged in the oil and gas industry, the merchant marine, and the defence and aerospace industries.
The Crestwood family of companies includes two publicly traded master limited partnerships, Crestwood Equity Partners LP (NYSE: CEQP) and Crestwood Midstream Partners LP (NYSE: CMLP). We own and operate midstream assets reaching across the energy value chain, serving producers and users of hydrocarbons in premier shale plays across the United States including the Marcellus Shale, Bakken Shale, Eagle Ford Shale, Permian Basin, Powder River Basin Niobrara Shale, Utica Shale, Barnett Shale, Fayetteville Shale and Haynesville Shale.
Perfection Oil Co. is a Dubuque, IA-based company in the Energy and Utilities sector.
Martinez Concrete Inc is a Sykesville, MD-based company in the Energy and Utilities sector.
Charles G Allen Contracting Co is a Bradley, AR-based company in the Energy and Utilities sector.