GeoLog Well Services, Inc.




GeoLog Well Services, Inc. is a locally owned and operated business. GeoLog is continually growing to meet the increasing demand for well service companies and crews in the tri-state area (Illinois, Indiana, and Kentucky). We take pride in having an experienced staff in the field and superior, local customer service in our head office.



Year Established








Greg Pottorff, President

Dee Pottorff, Office Manager

Rob Payne, General Field Engineer


Greg attended Southern Illinois University and graduated in 1985 with a Bachelor of Science in Geology. Greg is a Licensed Professional Geologist, licensed by the State of Illinois and has over 25 years of experience within the field.

Upon graduation from Southern Illinois University, Greg immediately put his degree to use as a Production Geologist at Booth Oil Company in Flora, IL. Greg worked at Booth Oil for nearly four years until joining Allegheny Wireline Services in Mount Vernon, IL as a Field Engineer and Geologist. While working for Allegheny, Greg operated and maintained the company's digital wireline logging system in Illinois, Indiana, Kentucky, Tennessee, Pennsylvania, and West Virginia. Greg rejoined Booth Oil in July of 1993 as a Production Geologist and Wireline Log Analyst. While back at Booth Oil, Greg conducted prospect generation, well site geology, well log evaluation and evaluated acoustic liquid measurements. Greg also managed many of the daily production activities while maintaining regulatory compliance. In June of 1999, Greg put his experience to work in the role of Vice President of Warrior Well Services in Flora, IL. Greg was an essential part of starting the business from the ground up. He managed the daily activities of the business while also serving as the Senior Wireline Engineer, Radiation Safety Officer, and Company Saftey Officer. After successfully managing Warrior for six years, Greg started his own company in June of 2005. GeoLog Well Services, Inc. has now been in business for nearly 15 years and has shown great success with Greg directing the company as President and General Manager.


Dee joined our team at GeoLog Well Services, Inc. in January of 2011 and serves as Office Manager and Administrative Assistant. She brought with her over 20 years of experience as a Resident Engineer, overseeing the construction and documentation on numerous projects within the state of Illinois. She also has extensive administrative experience and is very knowledgable in numerous programs including Excel and Quickbooks.

Dee is an important part of GeoLog's administrative team, and we are honored that Dee served our country as Ombudsman for the United States Navy for three years. During her time of service, Dee was instrumental in her unit being awarded the Family Readiness Award.


Rob Payne joined our team at GeoLog Well Services, Inc. in March of 2007. He brought over 18 years of experience to our organization. Rob serves as a General Field Engineer, Sales Representative, and Wireline Log Analyst. Prior to joining our team, Rob served as Senior Open Hole Engineer at Allegheny Wireline Services, Baker Atlas and Warrior Well Services, where he also served as Radiation Safety Officer and Sales Representative.

Rob has been an integral part of GeoLog's success, and we are also honored that Rob served our country for three years with the Army. He served both in Operation Desert Shield and Operation Desert Storm.

Tyson Rush, Pressure Control Manager / Sales

Mike Alvis, Senior Completion Engineer




Mike Alvis joined our team at GeoLog Well Services, Inc. in January of 2006. Prior to joining our organization, Mike had nearly five years of experience in the wireline field while employed by Allegheny Wireline Services. In addition, Mike has over 15 years of experience as Territory Sales Representative in Southern Illinois.

Mike serves as a Senior Completion Engineer, Shop Manager, and Explosive Magazine Keeper.




For any inquiries, questions or concern, please call (618) 895-2140 or fill out the following form.

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506 West Smith Street

Wayne City, IL 62895

Tel: (618) 895-2140

Fax: (618) 895-7112


To apply for a job at GeoLog Well Services, Inc., submit your resume to

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