Daniel Vassallo

Daniel is a Vice President in the Power and Renewables Division. He has research and modeling experience in renewable energy, atmospheric science, and power markets and has presented his work in various academic and industry conferences. His work on atmospheric modeling has been published in multiple research journals including the Journal of Atmospheric Sciences and […]

Thomas Sherman


Thomas Sherman is a Vice President in the Power and Renewables Division. He has research and modeling experience in renewable energy, power markets, environmental systems, and atmospheric sciences. His expertise is applying and developing state-of-the-art technology to solve industry problems. Thomas was a founder of CRCL Solutions and joined Enverus by acquisition in the summer […]

Sarp Ozkan

Sarp is a Director of Energy Analysis at Enverus Market Intelligence. He has research and modeling experience in the upstream and downstream markets and has presented his work at various academic conferences around the world, including those organized by the SPE and the IAEE. He has also been published in the SPE Economics & Management […]

Bernadette Johnson

Bernadette joined Enverus in 2016 through the acquisition of products and services from Ponderosa Advisors, where she was a founding partner. Throughout her career in energy, Bernadette has earned the reputation of industry expert with extensive experience providing crude, natural gas, and NGL fundamentals analysis and advisory services to various players in the North American […]

Dai Jones

Dai joined the Enverus team as one of the founding members of DI International in 2009 and has been responsible for building the global scouting data content and teams. Prior to joining Enverus he worked for over 10 years with IHS Energy in scouting data and management positions. His career began with Baker Hughes in […]

Turner Reisberger

Turner joined Enverus in April 2021. Turner earned a bachelor’s degree in petroleum engineering from Marietta College and an Executive MBA from Colorado State University. Turner previously worked at Anadarko Petroleum Corporation for 14 years in multiple reservoir engineering, business development, and planning roles across a variety of Lower 48 unconventional resource plays.

Scott Wilmot – EIR Contributor*


Scott Wilmot is a finance professional with more than 10 years of experience in the global energy infrastructure sector. In various corporate development and business development roles, he has been involved with regulated utility, renewable power and thermal generation assets.

Graham Bain – EIR Contributor*

Graham joined Enverus Intelligence Research (EIR) in 2020 with the acquisition of RS Energy Group. As lead of the subsurface group on the Energy Transition Intelligence team, Graham creates intelligent connections between the subsurface, emerging energy and carbon innovation technologies through 8 years of geoscience experience and a deep understanding of the energy transition. Prior […]

Andy McConn – EIR Contributor*

Andy leads the Commercial Intelligence team and deepens Enverus’ group of technical and financial specialists by contributing to company valuations and play modeling. Prior to joining Enverus in 2019, Andy worked as an analyst for energy-analytics and E&P businesses for a decade. He holds a B.A. in Corporate Communication with a minor in Economics from […]

Nick Volkmer – EIR Contributor*


Nick leads Enverus’ ESG efforts and supports the energy transition efforts, helping the industry navigate the evolving market landscape. He joined Enverus (ITG) in 2015 and initially focused on onshore U.S. asset valuation and optimization, leading the Gulf Coast research team. Nick graduated from Queen’s University with a degree in engineering chemistry and earned his […]

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