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who we are and what we do

Knife River Corporation is one of the Top 10 Aggregate Producers in America and is one of only three companies in that distinction that remains U.S.-owned and operated. Built on a foundation of more than 1.1 billion tons of aggregate reserves, Knife River’s operating companies provide Aggregate, Asphalt, Building Materials, Construction Services, Liquid Asphalt and Ready-Mix Concrete to public and private sector clients.

find the Knife River location near you

Knife River companies are physically located in 14 states but operate in 17 states in the central, western and southern United States, and in Alaska and Hawaii. At each location we are committed to providing you with local, personalized solutions for your construction materials and contracting needs. Please click on one of the highlighted cities to find our location nearest you.

Alaska Basic
Alaska Basic
Alaska Basic
Alaska Basic
Baldwin Contracting Company
Baldwin Contracting Company
Concrete, Inc.
Concrete, Inc.
Connolly-Pacific Co.
Connolly-Pacific Co.
DSS Company
DSS Company
Kent's Oil Service
Kent's Oil Service
KRC Aggregate
KRC Aggregate
Hawaiian Cement
Hawaiian Cement
Hawaiian Cement
Hawaiian Cement
Hawaiian Cement
Hawaiian Cement
West Hawaii Concrete
West Hawaii Concrete
Knife River - Southern Idaho Division
Knife River - Southern Idaho Division
Knife River - Spokane Division
Knife River - Spokane Division
Jebro Incorporated
Jebro Incorporated
Knife River Midwest LLC
Knife River Midwest LLC
Knife River Midwest LLC
Knife River Midwest LLC
Knife River Midwest LLC
Knife River Midwest LLC
Knife River Midwest LLC
Knife River Midwest LLC
Knife River Materials – Northern Minnesota division/dt>
Knife River Materials – Northern Minnesota division
Knife River - North Central Division
Knife River - North Central Division
Knife River - North Central Division
Knife River - North Central Division
Knife River Materials - North Central Division
Knife River Materials - North Central Division
Knife River - Mountain Region
Knife River - Mountain Region
Knife River - Mountain Region
Knife River - Mountain Region
Knife River - Mountain Region
Knife River - Mountain Region
Knife River - Mountain Region
Knife River - Mountain Region
Knife River - Mountain Region
Knife River - Mountain Region
Knife River - North Dakota Division
Knife River - North Dakota Division
Atlas, Inc.
Knife River - North Dakota Division
Knife River Corporation
Knife River Corporation
Knife River - Central Oregon Division
Knife River - Central Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
Knife River - Western Oregon Division
KRC Learning Services
KRC Learning Services
LTM, Inc.
LTM, Inc.
LTM, Inc.
LTM, Inc.
LTM, Inc.
LTM, Inc.
LTM, Inc.
LTM, Inc.
Rogue Aggregates
Rogue Aggregates
Knife River - Central Texas Division
Knife River - Central Texas Division
Knife River - Central Texas Division
Knife River - Central Texas Division
Knife River - Central Texas Division
Knife River - Southeast Texas Division
Knife River - Spokane Division
Knife River - Spokane Division
Knife River - Mountain Region
Knife River - Mountain Region
Knife River - Mountain Region
Knife River - Mountain Region

MDU Resources Group, Inc.

MDU Resources Group, Inc., a Fortune 500 company and a member of the S&P MidCap 400 index, provides value‑added natural resource products and related services that are essential to energy and transportation infrastructure, operating in three core lines of business: utility resources, energy and construction materials. MDU Resources includes electric and natural gas utilities, construction services, natural gas and oil production, natural gas pipelines and energy services, and construction materials and contracting. For more information about MDU Resources, see the company's Web site at www.mdu.com or contact the Investor Relations Department at investor@mduresources.com


Learn more about current activities at MDU Resources.
Learn more about MDU Resources financial performance.