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Antelope Oil Tool & Mfg. Co., LLC is a leading global supplier of high quality casing and cementing products, with a legacy of outstanding service reaching back half a century. We’ve built our reputation and our strategy for the future on the same simple philosophy: put the customer first, whatever it takes.


From the beginning, Antelope has concentrated on manufacturing and service excellence, matching our growth and acquisitions to the needs of our customers. By prioritizing customer satisfaction, we have achieved steady growth worldwide. As an established name in casing and cementing tools, we continue to expand our presence globally, which will provide challenging opportunities for the personal and professional growth of our team members.

We remain fully committed to providing exceptional, timely service to maintain our position as a leader in the development of unique and innovative products. With a dedicated engineering and technical sales team, we are able to custom model and design casing attachment solutions that utilize our numerous patented inventions. This flexibility, combined with our anticipation of our customers’ short- and long-term needs, will help make us the supplier of choice for both onshore and offshore oil and gas operators.

Company History

  • May 1961 Antelope Founded Jesse E. Hall launches the Antelope Oil Tool and Manufacturing Company (AOT) in Weatherford, Texas.
  • March 1993 AOT Acquired by Frank’s International Houston-based Frank’s International, a global oil services company, acquires Antelope, adding growth and modern manufacturing to the company.
  • April 1994 AOT Moves to Mineral Wells Due to company growth and expansion, AOT relocates to a larger facility in Mineral Wells, Texas.
  • June 2013 Intervale Capital Acquires AOT Energy-focused private equity firm Intervale Capital acquires Antelope from Frank’s International.
  • November 2013 AOT Acquires WearSox Antelope expands its close-tolerance centralization offerings by acquiring WearSox, a pioneering developer of thermal spray-on casing equipment.
  • December 2013 AOT Acquires Benchmark Completions Antelope adds Benchmark Completions to its family of subsidiaries, bringing manufacturing and engineering capabilities to Houston and Oklahoma City.
  • April 2014 AOT Acquires CTE By acquiring Alberta-based CTE Industries Ltd., Antelope expands its product portfolio with float equipment.
  • July 2014 AOT Acquires Advanced Composites Antelope acquires Advanced Composites Systems SRL, manufacturers of the Multi-layer Composite Centralizer.

Quality Certificates

API Certification

For over 20 years, Antelope has been certified by the American Petroleum Institute for maintaining the highest standards of quality in the industry.

ISO Certification

Antelope is accredited by the International Organization for Standardization for its leading personnel, environmental and customer safety standards.

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