Andy O'Brien takes the helm at ConocoPhillips on Sept. 1, ending Ryan Lance's 14-year tenure as CEO of the independent producer.
Andy O'Brien takes the helm at ConocoPhillips on Sept. 1, ending Ryan Lance's 14-year tenure as CEO of the independent producer.

ConocoPhillips will hand the CEO role to Andy O'Brien on Sept. 1, ending Ryan Lance's 14-year tenure leading the independent producer, with Konnie Haynes-Welsh promoted to CFO.
"Andy has played a significant role in shaping our company and strategy and I'm excited to see him, his leadership team and our employees build on our track record of success," Lance said in the announcement.
O'Brien, who joined Conoco in 1997, has served on the executive leadership team since 2022, overseeing Alaska and international operations, commercial, LNG, finance, corporate strategy, investor relations and mergers and acquisitions. Haynes-Welsh, who joined ConocoPhillips in 2012, previously held roles at PricewaterhouseCoopers and Mariner Energy before serving as treasurer and then vice president of finance and controller.
The transition comes as ConocoPhillips aims to deliver "peer-leading free cash flow growth" and competitive returns to shareholders, Lance said. O'Brien will join the board with his appointment, while Lance assumes a transitional executive chair role.
Lance's departure closes a 42-year career that began before ConocoPhillips existed as an independent entity. He set the course for the newly formed company in 2012, when it separated from its downstream operations to focus purely on exploration and production, according to Robert Niblock, lead independent director.
"The strength of the company today and its compelling outlook for the future is a direct result of Ryan's vision and leadership," Niblock said.
O'Brien's appointment reflects continuity rather than disruption. He has spent nearly three decades at the company across finance, planning and strategy roles globally before joining the executive leadership team in 2022. His portfolio since then has spanned Alaska and international operations, commercial, LNG, finance, corporate strategy, investor relations and M&A — exposure to nearly every facet of the upstream business.
The CFO transition brings a different profile. Haynes-Welsh's background includes stints at PricewaterhouseCoopers and Mariner Energy before joining ConocoPhillips in 2012, where she rose through corporate strategy, compliance and Lower 48 roles before becoming treasurer and then vice president of finance and controller.
O'Brien's 29-year run spans finance to LNG
The managed handover — with Lance staying on as executive chair — is designed to reduce execution risk during the transition. For investors, the key question is whether O'Brien maintains the capital discipline and free cash flow priorities that defined Lance's tenure, particularly as the company navigates volatile commodity prices and growing global energy demand.
The leadership change comes as major independent producers compete for capital in a sector that has seen consolidation and shifting investor priorities. ConocoPhillips' position as one of the largest independent upstream companies means its strategic direction carries weight across the broader oil and gas sector.
O'Brien inherits a company that Lance described as having "one of the best asset bases in the industry and a culture that delivers." His mandate, as stated in the announcement, is to "build on that momentum, continue raising the bar and unlock even greater value across our company."
The dual appointment — a new CEO and a new CFO taking office on the same day — gives the board an opportunity to refresh the top of the organization while keeping Lance available in a transitional capacity. The executive chair role is a common structure in large-cap energy transitions, allowing for institutional knowledge to remain accessible without day-to-day operational authority.
For shareholders, the succession plan reduces the uncertainty that often accompanies leadership changes at major producers. The company's stated priorities — disciplined capital allocation, free cash flow growth and competitive shareholder returns — remain unchanged under the new leadership team, according to the announcement.
The appointments take effect Sept. 1, 2026.
This article is for informational purposes only and does not constitute investment advice.