Integrated Field Studies
Reserve Reports
Acquisition Evaluations
Divestment Evaluations
Economic Evaluations
Prospect Analyses
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        Collarini Associates

Our People



Mitch Reece joined Collarini Associates October 1, 2002, as Engineering Manager with responsibility for the Houston technical organization. Prior to joining Collarini, Mitch was an independent consultant for Ryder Scott Co., Collarini Engineering, and International Engineering Manager for Devon Energy. From 1982 to 2000, he held various domestic and inter-national engineering and operations positions for Santa Fe-Snyder Corporation and its predecessor, Santa Fe Energy Resources, Inc. Mitch has direct experience in production engineering, reservoir engineering, acquisitions and divestments, field operations, and management of all of those functions. He began his career with Tenneco Oil Company in Lafayette, Louisiana after graduating from Texas A&M in 1979 with a B.S. in Petroleum Engineering. Mitch is a registered Professional Engineer in the state of Texas and a member of the Society of Petroleum Evaluation Engineers (SPEE), Society of Petroleum Engineers (SPE), and American Petroleum Institute ( API ).


Vice President

Luann D. Pratka, has over 35 years of experience in reserve evaluation, reservoir simulation, and the related disciplines of economics and planning. She started with Collarini Associates in 1993 and has set the company standard with her outstanding data organization and problem solving abilities, methodically and efficiently progressing toward a solid engineering result. Luann has performed integrated field studies, divestiture and acquisition analysis, reserve reports, and reservoir management studies for major oil companies and independents. She has experience in both onshore and offshore areas. Luann's degree is from Vanderbilt, and she previously worked for Exxon, Superior, and Mobil.


Geological Manager

James (Jim) G. Sorrells has over 36 years of experience in prospect generation, development and reservoir geology, and log analysis. He has integrated geology data, 2_D and 3_D seismic interpretations, engineering data, risks, and economic assessments into a multitude of investment opportunities. Jim started with Collarini Associates in 2005 after working for American Coastal Energy, Phylko Energy, Realitos Energy and Cavalla Energy Companies. Jim earned a Bachelor?s of Science Degree in Geology from the University of Texas in 1976 and was a member of the United States Air Force from 1968 to 1972. Jim is a registered Professional Geologist in the state of Texas.


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