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Get to know Marathon Oil

About Marathon Oil

We are a responsible, independent E&P with deep roots in American energy.


Marathon Oil Corporation (NYSE:MRO) is an independent exploration and production (E&P) company focused on four of the most competitive resource plays in the U.S., complemented by a world-class integrated gas business in Equatorial Guinea. We became an independent E&P company on July 1, 2011 and we are based in Houston, TX.

We know our stakeholders are particularly attuned to environmental, social and governance issues, often referred to as “ESG.” Because of this, we’ve prioritized and improved how we communicate our sustainability work through our annual sustainability report which showcases our efforts to achieve safe, responsible and ethical operations.

Our Strategy

We remain committed to our framework for success, with the foundation of a strong balance sheet, ESG excellence and the competitive advantages of our multi-basin portfolio, including the Eagle Ford in Texas, the Bakken in North Dakota, the STACK and SCOOP in Oklahoma and the Permian in New Mexico. This diverse portfolio is oil weighted, but well balanced with an approximate 50% oil and 50% gas/NGL production mix.

We believe we have the right portfolio of assets and the right strategy: putting returns first, generating sustainable free cash flow at conservative oil prices and sharing that cash flow with investors.

Stock Information
Our stock trades on the New York Stock Exchange under the ticker symbol: MRO.

Our Values

Defining who we are.

We are Marathon Oil

As we work to produce the energy the world needs, we are defined by our shared values.

We start with a commitment that doing the right thing is non-negotiable. Safety, social responsibility and ethical behaviors enable our license to operate.


We are collaborative as one, inclusive team and connected team.

Take Ownership

Take ownership of our own successes and make a difference.

Be Bold

Be bold by taking challenges and informed risks with confidence.

Deliver Results

Deliver results by focusing on the activities that deliver enduring value and trusting our workforce.

Delivering value since 1887.
Deep Roots

Delivering value since 1887.

While we feel like a start-up in many ways, our roots go back 130 years to our company's formation in 1887.

From the beginning, we focused on oil production, starting as the Ohio Oil Company. We operated as an integrated oil company for nearly 90 years of our history. In 2011, we spun off the refining business and became an independent E&P company.

Ethics & Integrity

It’s not just a phrase. It’s a way of life.

Why it Matters

Integrity helps us compete successfully in everything we do. Our Code of Business Conduct reinforces our long-standing commitment to high ethical standards and summarizes the fundamental importance of acting with integrity.

It’s important that our employees, stakeholders and business partners understand our position regarding ethical business conduct.

Dive Deeper
Learn more about ethics and integrity at Marathon Oil.

A reputation for integrity is one of the most important assets any individual or company can possess. Our good reputation has been created over lifetimes, but it can be destroyed by a single unethical or thoughtless act. That’s why it’s vital that each and every one of us make a personal commitment to uphold the highest level of ethics and business integrity.
Lee Tillman, Marathon Oil CEO