| Name | Title | Contact Details |
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Hi-Crush Inc. is an innovative leader in proppant and logistics services to the North American petroleum industry.
Ventura Refining is a Oklahoma City, OK-based company in the Energy and Utilities sector.
Ziegler Chemical is one of the leading companies in the Energy & Utilities sector.
Quintin Little Co is a Ardmore, OK-based company in the Energy and Utilities sector.
Wynn Oil Company is a Azusa, CA-based company in the Energy and Utilities sector.