Marathon Oil traces our history back to 1887. From the beginning, we focused on oil production, starting as The Ohio Oil Company, based in northwestern Ohio, which was the leading center for crude oil production in the U.S. at that time. Because of our early success, John D. Rockefeller’s Standard Oil Trust purchased The Ohio in 1889, and we remained part of Standard Oil until it was broken up in 1911. We entered the refining business in 1924, and operated as an integrated oil company for nearly 90 years of our history.
In 1930, we purchased the Transcontinental Oil Company, acquiring the Marathon product name, the Pheidippides Greek runner trademark, and the "Best in the long run" slogan. That same year we began trading on the New York Stock Exchange. More than three decades later, in 1962, we adopted Marathon Oil Company as our corporate name. From 1982 until 2002, we were part of US Steel. In 1990, we moved our headquarters from Ohio to Houston, where we have remained. When we pulled apart from US Steel, we once again became a standalone company in 2002. In 2011, we spun off the refining business and became an independent E&P company.
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.
“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
Integrity will help 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.
We can make more reliable predictions and answer future-looking questions with more precision by looking at our data differently.
MRO supports programs to protect native aquatic species, migratory grassland birds and pronghorn in the Pecos River Watershed.