Management Team

A legacy of strong leadership

In the 60 years since Dawson Geophysical opened its doors, we have inspired trust in our clients and fostered an employee centered culture that has enabled us to become the premier onshore acquisition company in North America. We offer the stability that comes with having long tenured management and the confidence of dealing with industry veterans who understand your seismic challenges and deliver the exact solution you need. Key to our managerial strengths is our commitment to always being accountable. That is why, from the front office to the field, Dawson personnel are accessible to clients to ensure the job is done as promised.

Key Leader Bios:

L. Decker Dawson
Chairman Emeritus

Mr. Dawson founded the Company in 1952. He served as President of the Company until being elected as Chairman of the Board of Directors and Chief Executive Officer in January 2001. In January 2006, Mr. Dawson was reelected as Chairman of the Board of Directors and retired as Chief Executive Officer of the Company. Prior to 1952, Mr. Dawson was a geophysicist with Republic Exploration Company, a geophysical company. Mr. Dawson served as President of the Society of Exploration Geophysicists (1989-1990), received its Enterprise Award in 1997 and was awarded honorary membership in 2002. He was Chairman of the Board of Directors of the International Association of Geophysical Contractors in 1981 and is an honorary life member of such association. He was inducted into the Permian Basin Petroleum Museum’s Hall of Fame in 1997.

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Stephen C. Jumper
Chairman of the Board, President & CEO

Mr. Jumper joined Dawson Geophysical Company in January of 1985 as a geophysicist.  He graduated from the University of Texas at Austin in December of 1984 with a Bachelor of Science degree in Geological Sciences, Geophysics option.  Jumper began his career with Dawson as a seismic data processor.

During his tenure with Dawson, Mr. Jumper has served the company as Technical Services Manager with an emphasis on 3-D seismic processing, Vice President of Technical Services, and currently President.  He was elected President, Chief Operating Officer, and Director of the Company in January, 2001. Jumper currently serves as President, Chief Executive Officer, and Director.

Mr. Jumper’s professional affiliations include memberships with the Society of Exploration Geophysicists, Permian Basin Geophysical Society, the American Association of Petroleum Geologists, European Association of Geoscientists and Engineers, and the West Texas Geological Society.  He served the Permian Basin Geophysical Society as Second Vice President, First Vice President, and President from 1991 – 1994. He has made several technical presentations to various local and national professional societies meetings and co-authored a 3-D case study paper published in a joint SEG/AAPG publication.  Jumper currently serves on the University of Texas at Austin Jackson School of Geosciences Advisory Counsel.

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C. Ray Tobias
Executive Vice President & COO

Mr. Tobias joined the Company in 1990, and was elected Vice President in September 1997 and Executive Vice President and Director in January 2001. In January 2006, Mr. Tobias was elected Executive Vice President and Chief Operating Officer. Mr. Tobias supervises client relationships and survey cost quotations to clients. He has served on the Board of Directors of the International Association of Geophysical Contractors and is Past President of the Permian Basin Geophysical Society. Prior to joining the Company, Mr. Tobias was employed by Geo-Search Corporation where he was an operations supervisor.

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Christina W. Hagan
Executive Vice President & CFO

Mrs. Hagan joined the Company in 1988, and was elected Chief Financial Officer and Vice President in 1997 and Senior Vice President and Secretary in January 2003. In January 2004, Mrs. Hagan was elected as Executive Vice President. Prior thereto, Mrs. Hagan served the Company as Controller and Treasurer. Mrs. Hagan is a certified public accountant.

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James Walter (Tom) Thomas
Executive Vice President,  CTO

Mr. Thomas received a BS (1976) and MS (1980) in Physics from Pittsburg State University. From 1976 to 1981 he taught secondary school math and science and served as a varsity football/track coach. From 1981-2002 he worked for Phillips Petroleum, joining Dawson Geophysical in the fall of 2002. He has over twenty-five years of exploration experience in the energy industry with thirteen years of actual field experience with 2-D and 3-D production and research seismic crews. He is a recognized leader in the geophysical sector for the innovation and application of 3-D seismic acquisition and specialized processing techniques. His current interests are concentrated in the development and application of seismic technology for Dawson Geophysical Company. Tom holds four patents in the field of seismic data acquisition and processing and has published his concepts and methods in geophysical literature.  He is a member of the Society of Exploration Geophysicists, the Geophysical Society of Oklahoma City, the Tulsa Geophysical Society, Permian Basin Geophysical Society, and Sigma Pi Sigma (Physics Honor Society).

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K.S. Forsdick
Senior Vice President

Mr. Forsdick joined the Company in 1993 and was elected Vice President in January 2001. Mr. Forsdick is responsible for soliciting, designing and bidding seismic surveys for prospective clients. Prior to joining the Company, Mr. Forsdick was employed by Grant Geophysical Company and Western Geophysical Company and was responsible for marketing and managing land and marine seismic surveys for domestic and international operations. He has served on the Governmental Affairs Committee of the International Association of Geophysical Contractors.

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Dave Wisniewski
Vice President

Mr. Wisniewski has been in the seismic oil & gas industry for over 30 years. Prior to joining the Company, Mr. Wisniewski worked both domestically and abroad in various countries. Mr. Wisniewski started his career in the Electronic / Technical area and has been working in the Management level for the last 15 years. He joined the Company in 2004 and became Vice President in October 2008. Mr. Wisniewski is a member of the SEG and the PBGS.

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Sam Dobbs
Vice President, Data Processing

Mr. Dobbs is a graduate of Eastern New Mexico University with a Bachelor of Science Degree in Geology. He has over 27 years of experience in processing land and transition zone data sets with an emphasis in the U.S and the Gulf of Mexico. Mr. Dobbs was elected Vice President Data Processing in October 2008. Prior to joining the Company he was employed by WesternGeco (Western Geophysical) where he was the U.S. Land Processing Manager. Mr. Dobbs oversees Dawson’s processing operations in Houston, Midland and Oklahoma City.

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Mark Nelson
Vice President, HSSE

Mr. Nelson joined the Company in 1993 and was elected Vice President in January 2004. Mr. Nelson has over thirty years of seismic experience, holds a Master’s degree in Environmental Science and is a registered environmental professional. He has also served as the Chairman of the Health, Safety and Environmental Committee of the International Association of Geophysical Contractors, is a member of the National Registry of Environmental Professionals and of the American Society of Safety Engineers.

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George E. McDonald
Vice President, Field Operations

Mr. McDonald joined the Company in 1972, and was elected Vice President in September 2006. Prior to election as Vice President, Mr. McDonald served as instrument operator, crew manager and field supervisor for the Company.

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Stuart A. Wright
Vice President, Applied Geophysics

Mr. Wright, a registered professional geophysicist, joined the Company in June, 2003 as Manager of Geophysics and was elected Vice President – Applied Geophysics in April, 2007.  Mr. Wright received his Bachelor of Science degree in Geology/Geophysics from Northern Arizona University in 1980.  From 1980 to 1987 he worked in Denver, Colorado for Cities Service Company/OXY USA as an exploration geophysicist.  From 1987 to 2003 he worked for Western Geophysical Company, also in Denver, where he worked in a number of processing, management, and design geophysicist positions.  In 2003, he joined Dawson Geophysical Company as Manager of Geophysics, responsible for 3-D survey design, parameter testing and other acquisition issues.  Stuart is the author or co-author of many papers including “Fundamental 3-D Seismic Survey Design,” “Seismic Data Acquisition in Mountainous Terrain” and “Lodgepole 3-D Seismic: Design, Acquisition, and Processing.” He is a member of SEG, Denver Geophysical Society, AAPG, RMAG and the Western Interior Paleontological Society, and has been invited to speak about 3-D topics to geophysicists, geologists and engineers at local and national societies across the country.

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Mark Pruitt
Vice President, Marketing

Mr. Pruitt joined the Company in 1995 as Marketing Manager and was elected Vice President Marketing in October 2008. Mr. Pruitt has been in the seismic acquisition industry for over 25 years and prior to joining the Company he was the Marketing Manager for Grant Geophysical. Mr. Pruitt is a member of the SEG, AAPG, HGS, RMAG, DGS and the PBGS.

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Kevin Werth
Chief Geophysicist

Mr. Werth supports 2-D and 3-D design and seismic acquisitions in the Mid-Continent and West Texas areas as well as the Appalachian Basin in the Northeast U.S. He received a B.S. degree in Liberal Arts at Hastings College in Nebraska and has completed postgraduate in Geology in Dallas, Texas. Mr. Werth has worked for twenty-seven years in the seismic industry, most recently ten years as a Design Geophysicist with WesternGeco in Oklahoma City/Midland/Denver and the past five-and-a half-years as an Area Geophysicist with Dawson Geophysical Company in Oklahoma City.

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Melody Y. Crowl
Treasurer/Controller

Mrs. Crowl joined the Company as Controller in 2005 and was elected as Treasurer in September 2006. Mrs. Crowl has over twenty years accounting experience including treasury, internal and external audit, and financial accounting. Mrs. Crowl is a certified public accountant.

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Jason Nelson
General Manager, Canada Operations

Bringing twenty years of oil and natural gas seismic experience and was most recently Area Manager Canada for Geokinetics Exploration Inc. where he managed all aspects of the Canadian operations while supporting International operations when required. Before joining Geokinetics Exploration, Mr. Nelson worked for Destiny Resources Services as the company’s Latin American Operations Supervisor. He was responsible for Operations Management in Continental Latin America and South America.

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