About Us
Welcome
Welcome to Shale Tec LLC!
Shale Tec LLC was formed in August 2012 to help operators enhance profits on plunger lift capable wells. Shale Tec believes knowledge is the starting point and thus offers a 2-day informative and comprehensive plunger lift learning class. Because Shale Tec does not sell or manufacture products, the class is solely focused on learning.
Currently, Shale Tec has taught over 140 learning courses, which have been attended by well over 1500 operators, foreman, superintendents, and production engineers.
As of 2025, this course is also available online! Students of plunger lift can now learn at their own pace at a time and place most convenient for them!
For more information, see the TRAINING, IN PERSON, or TRAINING, ONLINE web pages.
David Cosby, Founder and CEO
David earned a BSME degree from Texas A&M in 1983 and a MBA from the University of Dallas in 1986. He maintains a Professional Engineer license within the State of Texas. David’s early career focused on leading engineering teams to develop new products for companies within the electronics, consumer products and automotive industries. Hiring talented engineers, embracing relevant technology and creating efficient processes enabled these new product development teams to drive organic growth for their respective companies. In recent years, David devoted significant effort to understanding the principles of lean manufacturing.
In 2006, David joined Harbison Fischer Manufacturing Company to create a plunger lift business. With innovative features such as intuitive user interface software, blue tooth connection to the controller, an arrival sensor created by the world leader in automotive proximity sensors and two-stage wear indicators on padded plungers, the HF OptiMiser Well Control System achieved significant success. The HF OptiMiser’s team installed about 120 systems in the Barnett, Woodford and Marcellus Shale prior to the 2011 acquisition of Harbison Fischer by Dover Corporation.
After the acquisition, David enhanced Ferguson Beauregard’s (a Dover Company) marketing efforts, authored several plunger lift articles and taught classes at the Gas Well Deliquification workshops in Colorado and Pennsylvania. Shortly after Dover Corporation acquired Production Control Services (PCS) in Colorado, David stepped away from Dover and formed Shale Tec LLC.
Whether your team is new to plunger lift or has years of experience, Shale Tec’s plunger lift learning course will help your team identify opportunities and enhance profits from plunger lift capable wells.
Join the conversation
Join the conversation on the LinkedIn group – “Plunger Lifted Gas Wells”