new at Knife River

MDU Resources Acquires Amador Transit Mix, Inc.

MDU Resources Group, Inc. (NYSE:MDU) announced today that it has acquired Amador Transit Mix, Inc. and related companies (Amador), a premier ready-mix concrete producer in Sutter Creek, Calif., located approximately 45 miles southeast of Sacramento. Read more >>

Three Iowa Knife River – Midwest Employees Receive First Hero Awards

Knife River Corporation recently announced the first recipients of the company’s Knife River Hero Award. Three employees from its Knife River - Midwest Division in Iowa were involved in life-saving actions in June, which garnered each man an award. Read more >>

Knife River Corporation Acquires Ideal Contractors, Inc.

Knife River Corporation announced today it has added the assets of Ideal Contractors, Inc. and certain assets of Ideal Heavy Haul, Inc. to its Southern Idaho Division operations. Read more >>

Knife River – Cheyenne Division Awarded $46.1 Million WyDOT Project

Knife River Corporation’s Cheyenne Division was recently awarded a $46.1 million Wyoming Department of Transportation (WyDOT) project on Interstate 80 (I-80). 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 1.2 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
Northstar Materials: Northstar Materials
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 - North Dakota Division: 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 - East 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.

Knife River Corporation is the construction materials and mining subsidiary of MDU Resources Group, Inc. (NYSE:MDU). MDU Resources Group, Inc., 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; Energy, Construction Materials and Utility Resources. MDU Resources includes natural gas and oil production, natural gas pipelines and energy services, construction materials and mining, construction services, and electric and natural gas utilities.

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