GW Logo

Accurate | Reliable | Safe


Meter Proving and Calibration

Gage Western provides contract mobile proving services for PD and Coriolis liquid hydrocarbon meters in compliance with API MPMS Chapter 4.8.

Our experienced team utilizes the latest in proving hardware and software and a comprehensive safety program to provide accurate, reliable, and safe proving and calibration of custody transfer and process flow meters.

Gage Western also provides custody transfer meter proving witnessing services and will work with you to develop customized witnessing reports that meet your requirements.

We currently provide services throughout Texas and New Mexico.

Our Provers & Process

Our mobile provers operate at pressures up to 285 PSI and flow rates from 2 to 2,140 bbls/hour.

Our provers have full NIST traceable required certifications and carry redundant certified pressure, temperature, and API gravity measurement devices. Each proving unit carries inspection and test certificates for its prover volume, hoses, hydrometers, and pressure and temperature measuring devices. For each proving unit, mill test, radiological test, pressure test, and compliance documents for prover components are available for review upon request in advance.

We utilize process checklists and fully automated proving processes to accurately record flow rate, pressure, and temperature on every proving run. Our automation ensures that our calulations are auditable and in compliance with industry standards and our customer's tolerances and repeatability requirements.

We use PROVEit, a comprehensive and integrated software package, to prove, track and manage meter performance data based on API MPMS Chapter 12.2. And, we provide access to current and historical proving reports and meter proving data based on our customers requirements.

Our Measurement Technicians are equipped with and trained in Micro Motion's ProLink III configuration and service software tool and are ready to help your team address measurement issues with your Micro Motion and Rosemont flow transmitters.


Phillip Daskevich

Measurement Technician & President

Phillip has over twenty years of experience in financial engineering, especially in the field of agency and subprime mortgage backed securities. As President of Gage Western LLC, he focuses on the daily operations of the company including prover configuration, scheduling, operations, proving, business development, and administration. He is also President of Digilant Blue LLC, a consulting firm focused on helping mortgage bankers maximize the value of their servicing assets though data aggregation and consumer behavioral modeling. Phillip is originally from Midland, Texas and currently lives in Houston. He enjoys hunting and fishing, coaching his kid's sports, and mountain biking and snow skiing with his family.

Contact Phillip

Jeff Streeter

Director of Measurement Services & Outside Measurement Salesman

Jeff Streeter has over thirty-nine years of experience in petroleum measurement services and pipeline operations. Most recently, he served Cameron Measurement Services (2003 to 2015), a division of Schlumberger Limited, as Senior Technical Advisor and Measurement Services Manager. As Senior Technical Advisor, Jeff supported and advised Cameron Measurement Services employees and customers on technical measurement and meter proving matters as well as developed problem resolution strategies. As Measurement Services Manager, he managed an eight state region comprised of fourteen mobile meter proving units and technicians. His duties included meter proving, training meter proving technicians, implementing safety programs, business development, scheduling, and management reporting. Prior to his time at Cameron, Jeff was a Senior Pipeline Operator with Exxon Gas System, Inc. (1974 to 2003). Jeff has also served as an NCCER Instructor for Pipeline Awareness, Valve Safety et al. Jeff is an avid Texas Rangers fan, golfer, and grandfather, and he loves riding his Harley Davidson to Major League Baseball games.

Contact Jeff




  • Gage Western LLC
  • 7500 San Felipe St
  • Suite 600
  • Houston, TX 77063


  • 281-687-0006


Contractor Management

ISNetworld Member Contractor - Gage Western LLC (400-250396)