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.

As President, Shale & Tight, Chevron Corporation, Bruce L. Niemeyer, 64, oversees Chevron’s significant upstream activities in the Permian Basin in Texas and New Mexico, the Denver-Julesburg Basin in Colorado, and the Vaca-Muerta shale play in Argentina.

From 2022 to 2025, Niemeyer served as president of Americas Exploration & Production, overseeing Chevron’s upstream portfolio across the continental U.S, Canada and Latin America.

From 2018 to October 2022, Niemeyer led the development of the company’s key strategies, including capital allocation and sustainability efforts as corporate vice president of Strategy and Sustainability.

Previous roles have included vice president of Chevron’s Mid-Continent business unit from 2013 to 2018, vice president of the Appalachian/Michigan business unit from 2011 to 2013, and general manager of strategy and planning for Chevron North America Exploration and Production Company.

Niemeyer is a member of the Upstream Committee of the American Petroleum Institute, the Executive Committee of the Greater Houston Partnership and board member of the Texas Economic Development Corporation (TxEDC).

Niemeyer joined Texaco in 2000 from Atlantic Richfield Company. He earned a bachelor’s degree in petroleum engineering from the Colorado School of Mines and is a registered petroleum engineer in the state of California

Ken Peters is the Chief Nuclear Officer for Vistra, one of the largest competitive power generators in the U.S. Peters is responsible for all aspects of operation of Vistra's six nuclear units at four power plant sites. The nuclear units have a combined capacity of 6,400 MW.

The 2200-person nuclear team is responsible for the safe, reliable, cost-effective operation of the four nuclear power plants, in compliance with all federal, state, and local laws and regulations. This includes the operation, maintenance, and refueling of each unit. The team has a strong focus on safety, reliability, and continuous improvement.

In addition to his corporate duties, Peters has been active in industry and his community. He is a member fot eh Texas Radiation Advisory Board, first appointed in 2019. He also serves as Chair of the Board of Directors of the Utilities Service Alliance (USA) and chairs the Nuclear Energy Institute's Nuclear Strategic Industry Advisory Committee (NSIAC).

Peters has degrees in engineering and a doctorate in leadership. He has also attended several executive programs, including the Wharton Executive Development Program.

Douglass Robison is the Founder and CEO of Natura Resources LLC, located in Abilene, Texas. Throughout his career in the energy sector, Douglass has been at the forefront of leading-edge technologies, in his role at ExL Petroleum, a Permian-based oil and gas exploration and production company, and now as the founder and CEO of Natura Resources. In 2004 he was appointed by former Texas Gov. Rick Perry to serve on the Texas Energy Planning Council and co-chaired the Energy Supply Committee during which time his committee identified the importance of nuclear energy in our energy future. In 2023 Douglass was appointed by Texas Gov. Greg Abbott to serve on the Texas Advanced Nuclear Reactor Working Group. Natura Resources is a natural fit for his deep-seated interest in advanced energy technologies.

Tony Robinson is President and Chief Executive Officer of Framatome Inc., the North America subsidiary of Framatome and a leading provider of nuclear fuel, services, and instrumentation and control solutions. With nearly 40 years of leadership in the nuclear sector, Tony brings deep operational, commercial, and regulatory expertise to his role.

During his tenure at Framatome and AREVA, Tony has held several senior executive positions of increasing responsibility including, Senior Vice President of Installed Base Products and Engineering, Senior Vice President of Customer Accounts and Government Affairs, and Vice President of New Builds North America. Throughout his career, he has led complex organizations, strengthened customer partnerships, and advanced strategic growth initiatives across the U.S. nuclear fleet. Additionally, he previously served as Senior Vice President of U.S. Nuclear Energy at BWX Technologies, Inc., and as Senior Vice President and Chief Nuclear Officer at Structural Integrity Associates.

As an active industry and community leader, Tony serves on the Board of Directors of the Nuclear Energy Institute (NEI) and chairs the NEI Audit Committee. He is also a member of the Virginia Chamber of Commerce Board of Directors and serves on the board of the Central Virginia YMCA.

Tony holds a Bachelor of Science degree in mechanical engineering from the University of Akron, completed executive studies in the Kent State University Executive MBA program and is a registered professional engineer in Ohio.

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.

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.

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.