Geomark Research, Ltd.| Petroleum Services Division |

Headquarters
GeoMark Research, Ltd.
9748 Whithorn Drive
Houston, Texas 77095

Tel: 281-856-9333
Fax: 281-856-2987
info@geomarkresearch.com

Regional Map

Stephen W. Brown
President
sbrown@geomarkresearch.com

Kevin A. Ferworn
Vice President
kferworn@geomarkresearch.com

Marie Worth
Office Manager/Accounting
mworth@geomarkresearch.com

Mari Trevino
Account Manager
mtrevino@geomarkresearch.com

Jessica Ortiz
Shipping and Hazmat Coordinator
jortiz@geomarkresearch.com

John E. Zumberge
Senior Vice President
jzumberge@geomarkresearch.com

Kendra D. Imbus
Laboratory Manager
kimbus@geomarkresearch.com

Julie He
Senior Chemist
zhe@geomarkresearch.com

Jaclyn Mitchell
Data Manager
jmitchell@geomarkresearch.com

Zach Tritz
Project Manager
ztritz@geomarkresearch.com

Margaret V. Johansson
Consultant
mjohansson@geomarkresearch.com

Gulf Coast Laboratory
Petroleum Services Division

GeoMark Research, Ltd.
115 Zonolite Street
Lafayette, Louisiana 70508

Tel: 337/261-4002
Fax: 337/261-5045
info@geomarkresearch.com

Our Lafayette laboratory is conveniently located adjacent to the Lafayette Airport.

Scott J. Granger
General Manager
sgranger@geomarkresearch.com

Alex Gomez
Lab Technician
agomez@geomarkresearch.com

Rene Guidry
Lab Technician
rguidry@geomarkresearch.com

Ben Holmes
Lab Technician
bholmes@geomarkresearch.com

Jonathon Angelle
Logistics
Jangelle@geomarkresearch.com

Source Rock Petroleum Division

GeoMark Research Inc.
218 Higgins Street
Humble, TX 77338

Tel: 832/644-1184
Fax: 832/644-1318

Humble Office Location

Brian Jarvie
General Manager
bjarvie@geomarkresearch.com

Tony Garza
GC Specialist
tgarza@geomarkresearch.com