Our mission is to be the premier U.S. refining and logistics company.

Continuous Improvement

We continually improve.


Innovation and high-performance are our way of life. Our culture creates a fulfilling environment which enables employees to reach their potential. We believe in creating our own destiny and that a constructive attitude toward change is essential.

Environmental Stewardship

We care about the environment.


We are committed to minimizing environmental impacts by reducing wastes, emissions and other releases. We understand that it is a privilege to conduct our business in the communities where we operate.

Honesty & Respect

We tell the truth & respect others.


We uphold high standards of business ethics and integrity, enforce strict principles of corporate governance and support transparency in all our operations.

Health & Safety

We put health and safety first.


We conduct our business with primary emphasis on the health and safety of our employees, contractors and neighboring communities. We continuously strive to raise the bar, guided by our health and safety performance standards.

Corporate Citizenship

We obey the law.


We are committed to promoting sustainable social and economic benefits wherever we operate.

About HollyFrontier

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We are an independent energy company engaged in crude oil refining and wholesale marketing of refined petroleum products.

We serve markets throughout the mid-continent, southwestern, and Rocky Mountain regions of the United States.

Company Profile

Our Locations

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We own and operate five complex refineries with a total crude oil processing capacity of 443,000 barrels per day and are headquartered in Dallas, Texas.

Map of Operations