| Name | Title | Contact Details |
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Expro is an international oil and gas service company, specializing in well flow management, headquartered in Reading, United Kingdom.
Castle Oil Corporation is a Harrison, NY-based company in the Energy and Utilities sector.
O'Brien Industrial Holdings is a Saint Louis, MO-based company in the Energy and Utilities sector.
McCall Oil and Chemical Corporation is a Portland, OR-based company in the Energy and Utilities sector.
Century Frac Services is a Calgary, AB-based company in the Energy & Utilities sector.