Oil & Gas Environmental Solutions
for over 20 years

NTG Environmental is an environmental consulting firm based in Houston, Texas.  We specialize in providing the oil and gas industry with environmental solutions to meet ever-changing regulatory requirements.  For over two decades, NTG Environmental has partnered with oil and gas companies to manage liabilities and minimize costs over the lifecycle of an asset.  Formerly known as Carr Environmental Group, Inc., NTG Environmental was officially acquired by New Tech Global in 2012 to provide a full spectrum of environmental and engineering services throughout the US and internationally.

Environmental & Regulatory Services

With offices in Houston, Fort Worth, Midland, Denver, and Canonsburg, NTG Environmental is able to provide regionally customized solutions in six core areas including:

Environmental Due Diligence & Audits
Environmental Due Diligence Assessments. Compliance Audits. Third Party Audits. Asset Retirement Obligation (ARO) Evaluations. Pre-Drill Environmental Site Assessments.

Water Quality & Natural Resources
Wetlands Determinations. Wildlife Habitat Assessments. Threatened & Endangered Species Surveys. Baseline Water Quality Sampling.

Site Assessment, Remediation & Site Closure
Phase I/II Environmental Site Assessments. Soil and Groundwater Remediation. Pit Closure.

Air Quality Compliance
Air Permitting. Air Dispersion Modeling. Greenhouse Gas Reporting. Emission Inventory Reporting.

Regulatory Compliance & Permitting
Compliance Assistance. Compliance Audits. In-House Regulatory Assistance and Training. Groundwater Protection Compliance.

Environmental, Health & Safety (EHS) Management
Compliance System Development. Staff Outsourcing Assignments. Health and Safety Program / Manual Development. Hydrogen Sulfide (H2S) Contingency Plans.

Our Approach

NTG Environmental approaches every project with a problem solving philosophy using our experienced staff of geologists, soil scientists, biologists, environmental scientists, engineers, and regulatory specialists. We understand the impact environmental and regulatory compliance can have on our client’s resources and scheduling and are responsive, accessible and experienced to save you time and keep you on budget. We work to provide technical solutions using scientific and defensible methods to achieve your goals and manage your liability. With ever-changing regulations, our team is diligent and proficient in streamlining implementation and delivering effective results.

NTG Environmental (formerly CEG) is honored to be distinguished as one of Houston’s Top Growing Businesses for the past five years.

Our Leadership

Our staff of geologists, soil scientists, biologists, environmental scientists, engineers, and regulatory specialists provides technical solutions using scientific and defensible methods to achieve our client’s goals.

Regan Wood

Regan Wood

President & COO

Regan D. Wood serves as President and COO of New Tech Global Environmental. Mr. Wood is a graduate of The University of Texas and is a Registered Professional Engineer. Regan joined New Tech Engineering, L.P. in 1998 and his areas of expertise includes regulatory, geo-pressured environments and drilling and production operations. Regan’s previous experience includes serving as an Operations Engineer, Operations Manager and Vice-President of Kelley Oil Corporation.

John Wilson

John Wilson

Vice President

Over 9 years experience in the environmental industry including more than 8 years experience in environmental consulting. Specializations include environmental due diligence, soil and groundwater investigations and remediation.

Theresia Smith

Theresia W. Smith, P.G.

Senior Air Technology Specialist

Ms. Smith has over 20 years of experience in environmental consulting and partnering with the oil and gas industry. She holds B.S. and M.S. degrees in geology and is a licensed Professional Geoscientist.  Prior to partnering with Ms. Carr and creating Carr Environmental Group, Inc., Ms. Smith was an exploration geologist for various large to mid-size operators. Ms. Smith’s technical expertise lies in air permitting and compliance.

Our Locations

NTG Environmental provides environmental and regulatory services for both onshore and offshore operations throughout the United States.

NTG Environmental Offices

States where NTG Environmental has conducted work
Where we have conducted work
States AL, AR, CA, CO, FL, IL, KS, KY, LA, MS, MT, NE, NM, NY, NC, ND, OH, OK, PA, SC, SD, TN, TX, UT, VA, WV, WY

911 Regional Park Dr.
Houston, TX 77060
O : 281.872.9300
F : 281.872.4521

500 West 7th Street, Suite 803
Ft. Worth, Texas 76102
O : 817.885.8740
F : 817.885.8576

4605 Fielder St.
Midland, TX 79707
O : 432.685.3898
F : 432.685.3978


6000 Town Center Boulevard, Suite 220
Canonsburg, PA 15317
O : 724.745.5929
F : 724.745.7876


410 17th Street, Suite 1190
Denver, Colorado 80202
O : 303.629.8666
F : 303.629.0218


NTG Environmental is a dynamic full-service environmental consulting firm with over two decades of experience in supporting the oil and gas industry. Our experienced and talented staff of geologists, soil scientists, biologists, environmental scientists, engineers, and regulatory specialists is the backbone of our success and has enabled us to become respected leaders in the industry. We believe in setting high standards for responsible, cost effective environmental services and hire, develop, and reward talent that supports these values.

NTG Environmental is an Equal Employment Opportunity/Affirmative Action Employer committed to a diverse workforce.