new at Knife River

Knife River Corporation employee testifies before Federal Transportation and Infrastructure Committee

Joyce Fisk, a Knife River Corporation belly-dump truck driver from Almelund, Minn., testified today before the Federal Transportation and Infrastructure Committee about the critical need for long-term federal highway funding. Read more >>

Knife River – Midwest Division awarded $17 million Iowa DOT project

Knife River Corporation’s Midwest Division, based in Sioux City, Iowa, was awarded a $17 million Iowa Department of Transportation job on Interstate 29 through Sioux City. Read more >>

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