Customer Relations | Administrative

The World Leader In Reservoir Intelligence

The intel gathered and shared by our unique, integrated process and one-of-a-kind team of experts informs the entire life cycle of an asset. Having analyzed nearly 100,000 wells for more than 500 clients in every major play in the world, no one can provide a clearer picture of an asset’s value.

Identify, quantify and produce.

Our sole purpose, the reason we exist, is to drive hydrocarbon reserves and facilitate energy independence. We help our clients identify, quantify and produce their hydrocarbon reserves – unconventional and conventional – without the added expense of running new logs.

A privately-owned, comprehensive global oilfield services company, NuTech was founded in 1998 by ex-Schlumberger and Numar/Halliburton executives who pioneered Nuclear Magnetic Resonance research and development.

Headquartered in Houston, Texas.

Steve Roth

Steven Roth

President, Chief Executive Officer

Steven Roth joined NuTech in 2000.  Prior to his appointment as CEO, Mr. Roth served as Chief Marketing Officer, Chief Operating Officer, Vice President of Sales and Marketing, International Business Development Manager, and as a Senior Account Manager with NuTech.  

Mr. Roth graduated from the University of Wisconsin in 1986 with a Bachelor of Science degree in Geology, and later earned his Master of Science degree in Geology from Kansas State University.  With more than 35 years of experience in the oil and gas industry, he has also worked as: 

  • Senior Development Geologist for Stocker Resources, Inc. where duties included developing a 3D reservoir model, identifying new drill well locations for the drilling program, assisting in designing the drilling program for new drill wells.  Played a key role in constructing and implementing a petrophysical model for the Inglewood Field, which revolutionized the completion process. 
  • Senior Exploration Geologist with ARCO International Oil and Gas responsible for geologic duties pertaining to two lease blocks, offshore Gabon, West Africa, which included drilling a $15 Million oil discovery, basin analysis, and prospect generation.  Conducted presentations to ARCO management, foreign partners, and Gabonese government officials. Responsible for all phases of geological exploration in onshore and offshore basins throughout world.  Beyond West Africa, duties also included regional basin analysis, prospect generation, core description, source rock maturation modeling, interpreting 2D seismic data, and wellsite evaluation. Participated in bid-rounds, data rooms, and farm-out presentations. Involved with projects in Syria, Australia, New Zealand, Myanmar, Vietnam, China, and Russia. Conducted presentations to ARCO management, foreign partners, and government officials.
  • Development Geologist with THUMS Long Beach Co. (ARCO) responsible for geologic duties pertaining to the Long Beach Unit, offshore Wilmington Field, which included assisting with the interpretation of a 3D seismic data set. As part of a Reservoir Management Team, duties included working with the reservoir engineers to identify new drilling locations and completion intervals, detailed reservoir volumetric studies, seismic interpretation, and prospect assessment. 

Mr. Roth is also a member of the American Association of Petroleum Geologists (AAPG), and the Society of Independent Professional Earth Scientists (SIPES). 

Guy Hunter

Guy Hunter

Executive Vice President, Chief Financial Officer

Mr. Hunter graduated from the University of Texas in 1969 and received a Master of Science in Accountancy from the University of Houston in 1977. Mr. Hunter is a Certified Public Accountant licensed in Texas since 1978. Mr. Hunter’s 44 years of business experience has included:

  • Financial management (equity raise, debt placement and ratings, accounting and due diligence) of various energy related entities during development, construction and operating phases
  • Chief accounting and information systems officer of energy related business from start-up through public offering and eventual sale to another public entity
  • Managed CPA and consulting practices whose primary emphasis was on financial management and modeling, information systems development and accounting services for oil and gas, specialty manufacturing, technology and other energy related entities
  • Audit Manager for Price Waterhouse

Guy is a member of the American Institute of Certified Public Accountants, the Texas Society of Certified Public Accountants and serves on the Board of Directors of SIRE, a non-profit organization that provides therapeutic horseback riding for people with disabilities.


Nolan Lehmann

Executive Chairman

Nolan Lehmann joined NuTech in 2008. He has served as a member of the board of directors of nine public companies and more than 50 other operating companies in diverse industries, with annual revenues ranging from start-ups to in excess of $8 billion.  He has been responsible for negotiating and completing over 75 corporate acquisitions during his business career.

Previously, Mr. Lehmann served as the president and director of a business development company traded on the NYSE which invested in over 90 private operating companies during his tenure.  He also served as a general partner and primary investment officer of an institutional private equity investment fund, and as a managing director in a large family office.  Prior thereto, he served as Vice President in charge of corporate development for a NYSE company, and as a staff auditor with one of the major international public accounting firms.

Mr. Lehmann previously served as a director and chairman of Child Advocates, Inc., a charity in Harris County, Texas.  He also previously served as president and a director of the Houston Private Equity Association and the Houston Chapter of the Association for Corporate Growth.

Mr. Lehmann has an undergraduate degree in economics and a graduate degree in accounting from Rice University, and is a Certified Public Accountant.

Galen Dillewyn

Galen Dillewyn

Vice President, Business Development

Galen Dillewyn joined NuTech in 2009. Currently he serves as Vice President, Business Development for the Houston, Austin, San Antonio, Corpus Christi, and Louisiana markets. Mr. Dillewyn graduated from Texas Tech University in 2000 with a Bachelor’s Degree in Chemical Engineering. His 22 years of industry experience has included:

  • Growing and developing NUTECH’s client base as a technical liaison between the end user and the technical group.
  • 9 years with Schlumberger, working as a field engineer, operations manager, and in house technical support for several super majors.

Mr. Dillewyn’s affiliations include Houston Geological Society, SPE, and SPWLA.


Phone: 713-857-0856

Damon Lampis

Damon Lampis

Director, Human Resources

Damon Lampis joined NuTech in 2008. Mr. Lampis was named Director, Global Human Resources in April 2012 and is responsible for developing HR processes and policies, compliance, employee relations, performance management, recruiting, training, benefits, compensation, and 401(k) administration. In addition, he is responsible for all internal and external communications, including the company’s digital communications platform.

Mr. Lampis has more than 14 years of experience in the Upstream Oil & Gas industry, after spending the first seventeen years of his career in consumer products, leading sales and marketing teams.  Since that time has held positions of increasing responsibility in client services and marketing including Project Manager, and Manager- Marketing Planning & Strategy.

Mr. Lampis holds a Bachelor of Business Administration degree in Management from The University of Texas at San Antonio and is a member of the Society for Human Resource Management.


Matthew Laity

Matthew Laity

Desktop Support Technician


Elissa Vogelpohl

Elissa Vogelpohl

Manager, Financial Accounting

Elissa Vogelpohl joined NuTech in 2006 as a Financial Assistant, and is now a Financial Accountant.  She is responsible for overseeing day to day accounting functions at NuTech, including producing the monthly Financial Statements.  Ms. Vogelpohl graduated from Texas A&M University with a Bachelor of Business Administration in Finance in 2002.  Her accomplishments at NuTech over the last 15 years include:

  • Assisting in financial reporting on a consolidated basis as the company has expanded into multiple countries
  • Management of both Accounts Payable and Accounts Receivable functions for the company
  • Providing support during Annual Audit process
  • Supervising the month-end close process
  • Working closely with the Executive Team tracking monthly sales, accounts receivable collections, cash management, etc.





Scott Wessels

Area Account Manager

Scott Wessels joined NuTech in 2022 as an Area Account Manager.  Mr. Wessels graduated from Kansas State University with a Bachelor of Science in Geology and the University of New Orleans with a Master of Science in Geology.  Since 2010 he has worked for PetroEdge Energy, Equinor (Statoil), and Microseismic Inc. His accomplishments include:

  • Developing EOR strategy in the Eagle Ford Shale
  • Prospect generation, maturation, and screening
  • Development and Operations Geology roles
  • Microseismic processing and interpretation

Mr. Wessels is affiliated with Houston Geological Society, AAPG, SPE, and SEG.


Phone:  504-344-7779

This isn't just characterization of the reservoir. This improves every facet of E&P.
More accurate evaluation. Stronger development strategy. Smarter completions. Better results.
The science of reservoir intelligence isn't new. But the application, the way we do it, is changing everything.
We have completed full field studies on some of the most prolific basins in the world. Jump-start your exploration right here.
In addition to hydrocarbon production, the chief purveyors of reservoir intelligence have passion for the industry and the community.