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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.
Advantage Oil and Gas Ltd is a Calgary, AB-based company in the Energy and Utilities sector.
Western Refinery Services is a Ferndale, WA-based company in the Energy and Utilities sector.
P. Gagnon and Son is a South Berwick, ME-based company in the Energy and Utilities sector.
Petron Energy II, Inc. continues a tradition of developing oil and gas properties in low risk areas with years of proven production history.