| Name | Title | Contact Details |
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Halliburton Company is an American multinational corporation. One of the worlds largest oil field service companies, it has operations in more than 70 countries.
Aviva Inc is a Denver, CO-based company in the Energy and Utilities sector.
Belden & Blake Corp. is engaged in the acquisition, exploration, development, and production of oil and gas reserves, and the gathering and marketing of natural gas. (Source: 10-K)
Centripump is a company that specializes in LACT unit manufacturing, process pumps, and field services for the oil and gas industry.