Our Promises

Corporate Governance 

Marathon Oil's Board of Directors helps guide the long-term success of our company. The Board independently oversees all corporate and risk management efforts. There are four principal committees, whose members are independent, non-employee directors.

Lee Tillman

We are aligned as one team. We respect, listen to, challenge, support and learn from each other. We celebrate our diversity and differences because we know that by collaborating we can achieve so much more.

Code of Business Conduct

Code of Ethics for Senior Financial Officers

Our Board of Directors’ Corporate Governance and Nominating Committee approved and adopted a Code of Ethics for Senior Financial Officers. This code applies to Marathon Oil’s principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions.

Code of Conduct for Persons Engaged in Natural Gas Sales

Marathon Oil adheres to a Code of Conduct For Persons Engaged in Natural Gas Sales for Resale Transactions and Voluntarily Submitting Natural Gas Transaction Data to Price Index Developers in buying or selling natural gas and in reporting data from such transactions to price index developers.

Restated Certificate of Incorporation and By-Laws

Marathon Oil Corporation Restated Certificate of Incorporation filed with the Secretary of State of the State of Delaware on May 30, 2018:

Marathon Oil By-Laws, Amended and restated as of February 24, 2016:

CEO/CFO Certifications

A listing of certifications for the past five years, including the current year:

Our board members and the committees on which they serve


Meet our executive leadership team


Ethics and integrity


Read about Marathon Oil’s strategy and values