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Petróleo Brasileiro S.A. é uma empresa de capital aberto, cujo acionista majoritário é o Governo do Brasil, sendo, portanto, uma empresa estatal de economia mista.
Tec Well Service Inc. is one of the leading companies in the Energy & Utilities sector.
Paxson Oil Co. is a Saginaw, MI-based company in the Energy and Utilities sector.
Joseph Huemann and Sons Inc is a Ringwood, IL-based company in the Energy and Utilities sector.
Air Resource Specialists is a Fort Collins, CO-based company in the Energy and Utilities sector.