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MDU RESOURCES G ROUP, INC.

megawatts of wind electric generation

baker, montana

our vision

As part of its efforts to reduce greenhouse gas emissions while

vision

meeting the electric needs of its customers, Montana-Dakota Utilities

Co. constructed the Diamond Willow Wind Farm. The project includes

With integrity, create superior shareholder value

13, 1.5-megawatt wind turbines.

by expanding upon our expertise to be the supplier

of choice in all of our markets while being a safe

includes a charitable donation for the

and great place to work.

employee who most embodies those values.

our mission

We also support our communities and

mission

neighbors through the MDU Resources

Provide value-added natural resource products and

Foundation, which provides charitable

related services that exceed customer expectations.

contributions to tax-exempt organizations

within the areas where MDU Resources

our integrity code

conducts business. MDU Resources'

integrity

business units fund the foundation through

Our corporation's Integrity Code provides a summary

contributions of 0.5 percent to 1 percent

of the expected behaviors that guide us to perform

of their average pretax earnings. The

with integrity in all matters. Through our Integrity Code,

foundation contributed about $1.9 million

we make a commitment to:

to organizations in our communities in 2007.

integrity We will conduct the corporation's business

A long-term approach

legally and ethically with our best skills and judgment.

Through all of our endeavors, we strive

shareholders We will always act in the best interests

to provide essential products and services

of the corporation and protect its assets.

for today, while ensuring that life and our

business can be sustained in the future.

employees We will work together to provide

Our first sustainability report begins

a safe and positive workplace.

the dialogue with all the people who have

customers, suppliers & competitors We will

a stake in what we do. We expect to

compete in business only by lawful and ethical means.

continue this conversation with you.

communities We will be a responsible and valued

corporate citizen.