The US is the second largest producer and consumer of electricity globally, generating around 15% of the world’s electricity supply — about half as much as China.
In 2021, the States produced 3,988TWh of electricity.
The International Energy Agency (IEA) highlights how, thanks to the introduction of major energy and climate policy reforms, the States is on a path towards a clean, secure and affordable energy system for a net zero economy.
Looking at its energy mix more generally, the IEA determined that 11.2% of the US energy comes from coal, with 35.2% coming from oil, 35.4% from natural gas and shy of 10% from nuclear sources. In 2022, 21.3% of power generation was made up by renewables.
With the US’ landscape made up of a variety of different energy sources, Energy Digital looks at 10 of the countries’ largest energy companies and the leaders at the helm.
10. Maryann T. Mannen
President and CEO of Marathon Petroleum
Market cap: US$59bn
Taking over as President and CEO earlier this month, Maryann has been with Marathon Petroleum since January 2021. She brings almost four decades of energy experience with her to the role, including executive roles at FMC Technologies — now a part of TechnipFMC — and former auto parts manufacturer and industrial conglomerate Sheller-Globe Corporation. Maryann’s predecessor, Michael J. Hennigan, said Maryann has a “proven track record as an energy sector veteran” who has “demonstrated a keen understanding of our business, clear judgement and a strong financial expertise that will serve shareholders well”.
9. W. Randall ‘Randy’ Fowler and A.J. Teague
Directors and Co-CEOs of Enterprise Products
Market cap: US$61.2bn
At the helm of Enterprise Products since 2020, Randy and A.J. share leadership responsibility across all of the business’ operations. Randy previously served as CFO, President and Chief Administrative Officer of Enterprise Products and also chairs the Energy Infrastructure Council, as well as serving on several advisory boards. A.J. has also held a number of positions at Enterprise Products, including CEO, COO and Executive Vice President. He joined Enterprise in 1999 and outside of his Enterprise Products responsibilities serves on the board of Solaris Oilfield Infrastructure.
8. Olivier Le Peuch
CEO of SLB
Market cap: US$62.3bn
In post since 2019, Olivier is a well-regarded executive with the aspiration to lead a digital revolution, drive efficiency and cultivate collaboration for a more sustainable energy industry. This is evident throughout his tenure at SLB, which spans more than 35 years. He has held a number of significant executive positions throughout his career with the company, including COO and Executive Vice President Reservoir & Infrastructure. This experience, paired with the unprecedented upheaval seen across the petroleum sector in the last few decades, has positioned Le Peuch in the thick of significant change across a variety of industries across his career — and often at crucial moments.
“My role is to enable our people to deliver their best — innovation, creativity and performance — to respond to the needs of an evolving energy industry,” he said.
7. Ezra Yacob
Chairman of the Board and CEO of EOG Resources
Market cap: US$73bn
Boasting 21 years of industry experience and 16 years of service with EOG Resources, Ezra became the company’s Chairman of the Board and CEO in 2021. Predecessor Bill Thomas said Ezra’s experience gained working on and leading cross-functional teams is in keeping with EOG’s unique culture.
“Ezra’s career with EOG began in 2005 at the dawn of the shale oil and gas era and I believe he is one of the industry’s foremost experts in the exploration and development of unconventional resources,” he said.
6. Lynn J. Good
Chair, President and CEO of Duke Energy
Market cap: US$87.5bn
Lynn’s utility career began in 2003 with Cinergy, which merged with Duke Energy three years later. In the more than 20 years since, Lynn has emerged as an energy leader steadfast in ensuring Duke customers have affordable, reliable and clean energy. She has been President and CEO of Duke since 2013 and her leadership has seen substantial economic benefits created for communities, trailblazing the way to providing cleaner and smarter energy to meet the demands of a more digital-powered future.
Before taking the top job, Lynn served as CFO and earlier led the company’s commercial energy business during its initial development of renewable energy projects.
5. Chris Womack
Chairman of the Board, President and CEO of Southern Company
Market cap: US$95.4bn
Chris is a company veteran, having joined Southern Company in 1988. In the more than 35 years since, he has held several leadership positions across the business and its subsidiaries including SVP Human Resources and Chief People Officer and President of External Affairs and Chairman of Southern Company, as well as President and CEO of Georgia Power.
On his appointment to the role of CEO in 2023, he said: “It is with great enthusiasm that I pledge to uphold and enhance the company's esteemed legacy, characterised by success, visionary leadership, innovation and unparalleled commitment to serving our customers and communities.”
4. Ryan Lance
Chairman and CEO of ConocoPhillips
Market cap: US$127.8bn
Chairman and CEO of the world’s largest independent exploration and production company since 2012, Ryan Lance has had a considerable impact on ConocoPhillips. Ryan earned his Petroleum Engineering degree from Montana Technological University in Butte in 1984, and has since held multiple senior and executive positions. He joined the Phillips Petroleum Company — which became ConocoPhillips — in 2001 and on the merger of Conoco, Inc. and Phillips Petroleum Company in 2002, he became ConocoPhillips’ Vice President Lower 48.
Outside of his work at ConocoPhillips, Ryan contributes to the petroleum industry by serving on the boards of directors of Spindletop International, the American Petroleum Institute and the Independent Petroleum Association of America, as well as being a member of the Society of Petroleum Engineers.
3. John W. Ketchum
Chairman, President and CEO of NextEra Energy
Market cap: US$159.5bn
John was named President and CEO in March 2022 and became Chairman of the Board of Directors in July of the same year. He joined NextEra Energy in 2002 and throughout his time at the company has held roles such as President and CEO of NextEra Energy Resources. Under John’s leadership, subsidiary NextEra Energy Resources — a wholesale electricity supplier — had a record year for origination, adding approximately 9,000MW of new renewables and battery storage projects to its arsenal.
As well as his roles at NextEra, John is Chairman of the company’s rate-regulated electric utility Florida Power & Light Company (FPL) and Chairman and CEO of NextEra Energy Partners, LP, a growth-oriented limited partnership formed by NextEra Energy to acquire, manage and own contracted clean energy projects with a focus on renewable energy projects.
2. Mike Wirth
Chairman of the Board and CEO of Chevron
Market cap: US$263.2bn
A loyal member of Chevron’s workforce, Mike has been a part of more than 40 years of development with the business. He joined in 1982 and, now as the leader of one of the most established energy firms in the world, leverages his decades of experience to continue to propel it to new heights. As the CEO of Chevron, he is a driving force of energy sustainability, with his position enabling him to facilitate significant changes to meet future energy trends.
1. Darren Woods
Chairman and CEO of ExxonMobil
Market cap: US$528.7bn
Darren has been the Chairman and CEO of ExxonMobil, one of the largest energy companies in the world and the biggest in the USA, since 2017. He joined ExxonMobil — the largest existing direct descendant of John D. Rockefeller's Standard Oil — in 1992 and had 24 years of company service before being promoted to the role of CEO. His tenure has seen him work across a variety of senior leadership roles in numerous international business units. Darren’s in-depth knowledge, skill and understanding obtained throughout this wealth of experience is key to leading Exxon’s board in a complex landscape.
Outside of ExxonMobil, Darren is Chairman of the National Petroleum Council, on the board of directors of the American Petroleum Institute and the board of trustees of the Center for Strategic and International Studies.
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