Since 1982
Founded in 1982 and based in Houston, Hollo & Associates, LLC provides advisory and operational services across the energy industry. Our team brings decades of proven experience delivering strategic consulting to the oil and gas sector as well as to other areas of the evolving energy landscape.
Acquisitions
Through Crest Operating, we actively acquire and manage energy assets. This direct ownership experience keeps us closely connected to market realities and strengthens the strategies we share with clients and partners.
Consulting
Our consulting team works alongside companies to navigate complex challenges, develop forward-looking strategies, and create long-term value across every stage of the energy cycle.
Operations
With decades of hands-on expertise, we provide operational support that helps maximize efficiency, streamline performance, and protect the value of energy assets.
Education
Through our educational series, we help clients analyze shifting energy trends and prepare their organizations for the future. We believe knowledge is a powerful tool for building resilience and shaping the industry’s direction.
Meet the Team
At Hollo & Associates, our strength lies in the depth and diversity of our expertise. Led by founder Reuven Hollo, PhD, our team brings together seasoned professionals with backgrounds in academia, operations, and strategic consulting. Together, we offer a rare combination of technical knowledge and practical experience—united by a shared commitment to advancing the future of energy through thoughtful leadership and collaborative solutions.
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Founder & Principal
Dr. Reuven Hollo has over 40 years of experience in the oil and gas industry, with a career spanning private energy investments, operational leadership, and academic teaching focused on the evolving energy landscape. His multidisciplinary expertise blends hands-on energy industry knowledge with analytical rigor, providing clients with strategic guidance across a broad spectrum of oil, gas, and emerging energy investments.
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Senior Operations Manager
Mr. Mullinix has over 30 years of experience in reservoir management and oilfield operations. He has managed drilling, workover, and stimulation programs across a wide range of basins including the Permian, Mid-Continent, South and East Texas, the Williston Basin, Michigan, and the Gulf of Mexico. Education: B.S. in Engineering, Texas A&I University (1975)
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Director of Administration
Ms. Moore has been with the company since 1998 and plays a central role in the firm’s internal operations. She oversees accounting, engineering support and coordination across departments, ensuring operational efficiency and organizational continuity. Education: BBA in Accounting, University of Houston–Downtown