Global Energy Symposium

Mr. Van’t Hof has served as the Chief Executive Officer and as a director of Diamondback since May 2025. Prior to his current position, he served as our President from February 2025 to May 2025, President and Chief Financial Officer from February 2022 to February 2025, Chief Financial Officer and Executive Vice President of Business Development from February 2019 to February 2022, as Senior Vice President of Strategy and Corporate Development from January 2017 to February 2019 and as our Vice President of Strategy and Corporate Development since joining us in July 2016. Mr. Van’t Hof has served as Chief Executive Officer of Viper since February 2025, and as a director of Viper since November 2023. Before joining Diamondback and Viper, Mr. Van't Hof served as Chief Executive Officer for Bison Drilling and Field Services from September 2012 to June 2016. From August 2011 to August 2012, Mr. Van't Hof was an analyst for Wexford Capital, LP responsible for developing operating models and business plans, including for our initial public offering, and before that worked for the Investment Banking - Financial Institutions Group of Citigroup Global Markets, Inc. from February 2010 to July 2011. Mr. Van't Hof was a professional tennis player from May 2008 to January 2010. Mr. Van't Hof received a Bachelor of Science in Accounting and Business Administration from the University of Southern California.

Chuck Yates co-leads sales and business development for Collide, the AI platform for energy. He originally joined the team to launch his podcast, Chuck Yates Needs A Job, after years in the energy private equity world. Chuck previously ran Kayne Anderson’s energy fund as Co-Head and Managing Partner and began his career at Stephens Inc. He also sits on the Advisory Board for Montrose Lane. Chuck has a BA in Political Science and an MBA from Rice University.

Greg Determann is a Managing Director and leads J.P. Morgan’s Global Corporate Client Banking Natural Resources team. His group works with a broad spectrum of natural resources companies, including those in oil & gas, power, renewables, and mining. Greg became part of J.P. Morgan in 2012 and has specialized in oil & gas and energy sectors since 2004. He holds the CFA designation and graduated cum laude with a Bachelor of Science in Biological Engineering from Louisiana State University. Greg went on to earn his MBA with a Finance concentration from LSU immediately after completing his undergraduate degree. He resides in Houston with his wife and their two teenage children.

Michael Donohue is a senior energy executive with more than 15 years of experience in power markets, commercial strategy, and large-scale energy delivery. He currently serves as Vice President of Power Origination & Energy Strategy at Oklo, where he leads global commercial strategy and customer origination for integrated advanced nuclear energy solutions.

At Oklo, Michael is responsible for structuring and deploying scalable nuclear power solutions across both domestic and international markets, with a focus on serving hyperscale digital infrastructure customers. He works closely with leading technology platforms to integrate 21st-century advanced nuclear generation into next-generation data center campuses, enabling reliable, carbon-free baseload power at scale.

Previously, Michael served as Managing Director of Business Development at Cumulus Data, where he led commercial strategy and marketing for the company’s flagship direct-connect nuclear-powered data center campus, as well as natural gas-powered developments. Prior to Cumulus Data, he was Managing Director of ERCOT Power Trading & Origination at Talen Energy, where he led market-facing commercial activities, structured large-scale energy transactions, and oversaw trading and risk management strategies.

Michael also serves as Chair of the Power Working Group for the iMasons Climate Accord, where he coordinates strategic power discussions among major hyperscale data center operators, utilities, and generation providers to accelerate the adoption of carbon-free energy across the digital infrastructure sector.

Over the course of his career, Michael has held senior trading and origination roles at Talen Energy, PPL, Constellation Energy, Exelon, and the NYMEX. He brings deep expertise in PJM and ERCOT market structures, wholesale power trading, risk management, and 24/7 generation dispatch operations.

Jimmy is a veteran of the U.S. energy sector with more than three decades of experience across state government, federal agencies, and the private sector, all centered on advancing the electric power industry. His leadership has consistently shaped major infrastructure, regulatory, and policy efforts at both state and national levels.

Most recently, Jimmy served as a Commissioner at the Texas Public Utility Commission, appointed by Governor Greg Abbott in 2021. During his time at the PUC, he played a key role in strengthening ERCOT, expanding the state’s transmission network, and enhancing grid reliability. He also chaired the Texas Advanced Nuclear Reactor Working Group, leading the development of a comprehensive policy roadmap to position Texas as a national leader in advanced nuclear energy.

Before that, as head of the Government Solutions Group at Quanta Services, Jimmy spearheaded a $15 billion initiative to manage and rebuild the power system in Puerto Rico. His work connected government priorities with large-scale electric infrastructure projects, demonstrating the impact of public-private coordination at national scale.

Jimmy’s public-sector experience also includes serving as Director of the Office of Electricity at the U.S. Department of Energy, where he advised the Secretary of Energy and led national policy efforts to streamline energy permitting and improve reliability.

Earlier in his career, he co-founded Clean Line Energy Partners, developing multistate HVDC transmission projects aimed at unlocking renewable energy at scale. He also held leadership roles at Calpine, permitting and developing natural gas-fired power plants across the U.S.

Across every chapter of his career, Jimmy has been a connector, linking innovation with government policy, complex capital projects with effective execution, and cutting-edge technology with real-world deployment.

Justin Sink is Vice President of Strategic Initiatives at Natura Resources, where he leads strategy development, external partnerships, and the company’s transition from research to commercial deployment of advanced nuclear technologies. Prior to joining Natura, he spent over 15 years at ExxonMobil in leadership roles across innovation, corporate strategy, and energy integration, including work on industrial applications of advanced reactors. He began his career as subsea controls engineer and holds a B.S. in Mechanical Engineering from Louisiana Tech University and an MBA in Finance from the University of Florida.

Jim Wright is a life-long south Texan, and a fifth-generation Texas rancher. As such, he understands the important relationship the energy industry has with the citizens of our state and the role energy plays as a cornerstone of the Texas economy.

Since his election to the Railroad Commission in November 2020, Commissioner Wright has emphasized the need for a fair and consistent regulatory environment designed to promote and encourage innovation in our state’s energy sector.

Wright believes that the long-term success of the Texas economy and the Texas energy industry are closely linked, and that increasing and strengthening access to global energy markets will ensure that Texas remains an energy and economic powerhouse for years to come.

Wright has championed solution-oriented leadership since his arrival at the Railroad Commission and has encouraged the industry and the public to engage collaboratively with the Commission for the long-term benefit of the citizens of our great state.

Commissioner Wright understands that the energy industry of tomorrow will look vastly different than the one today. Which is why he believes the Railroad Commission must be proactive when it comes to issues such as water and carbon management, and when considering regulations for new energy technologies such as geothermal power and hydrogen production and storage.

Jim Wright first started working in the energy sector at age 19. Through hard work, determination, and a little bit of luck, Wright capitalized on his years of hands-on experience to create a group of environmental management companies that service the energy industry.

In addition to his professional achievements, Wright was a rodeo cowboy, participating in bull riding competitions for more than two decades. Balancing his professional endeavors, Wright is a devoted family man, living in Orange Grove with his wife, Sherry, and their five children, and actively participating in Texas Cowboy Churches.

Pablo Vegas holds a life-long passion for learning, innovation, and growth. He has developed these passions over a 30-year career spanning the boardroom and the C-suite across the energy industry, financial services, and banking industry, as well as in management consulting and professional services.

As the President and CEO of ERCOT, Mr. Vegas plays a critical part in ensuring the reliable and efficient operation of the Texas electric grid, enabling the energy transition and expansion that is supporting the fastest growing economy in the United States.

Prior to ERCOT, Mr. Vegas was Executive Vice President of NiSource, and Group President of NiSource Utilities, where he oversaw NiSource’s electric and gas business segments and championed outstanding service to NiSource customers. He served as a versatile executive at NiSource for six years, holding numerous roles, including Chief Operating Officer, President of Columbia Gas Group, and Chief Customer Officer.

Prior to joining NiSource, Mr. Vegas held a variety of senior executive positions with American Electric Power (AEP), including President and Chief Operating Officer of AEP Ohio, President and Chief Operating Officer of AEP Texas, and Vice President and Chief Information Officer of AEP.

Before his career in the energy industry, Mr. Vegas served in senior leadership positions with IBM, PricewaterhouseCoopers, and Andersen Consulting.

Mr. Vegas serves as an independent director on the board of Northwest Bancshares Inc. (Nasdaq: NWBI). He also serves on the Global Advisory Board for the Harvard Business School. He is a member of the Latino Corporate Directors Association and a member of the Austin Area Research Organization. He was appointed to the Texas Energy Reliability Council by Governor Abbott in 2022.

Mr. Vegas attended the Advanced Management Program at Harvard Business School and graduated cum laude from the University of Michigan with a BS degree in mechanical engineering.