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Responsibly Sourced Engineering Solutions, LLC, was born in 2023 to fill the growing need for specialized knowledge in both broader oil and gas operations and its environmental impact in order to accurately certify production for the growing demand of more responsible oil and gas.


Jonathan Lefor, P.E., Owner & Principal Consultant

Jonathan Lefor, PE., has worked in oil and gas production and operations since graduating with his engineering degree from South Dakota School of Mines and Technology over 18 years ago.  His professional experience includes production companies, service providers, and large consulting firms  with focuses on completions, production and environmental impact.  Aided by his wide range of experience, Jonathan earned his Professional Engineering license in Petroleum in 2017. 

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