Connolly-Pacific Co. (CP) is a vertically integrated rock quarrying and marine construction company. CP is engaged in the business of selling rock products and providing marine construction services in Southern California, primarily from Los Angeles to San Diego.

CP, originally incorporated in 1946, has been in operations since the early 1930’s initially constructing the Los Angeles and Long Beach breakwaters for the U.S. Army Corps of Engineers.

We are a wholly owned subsidiary of Knife River Corporation. Knife River Corporation is a wholly owned indirect subsidiary of MDU Resources Group, Inc. operating the company’s construction materials and mining operations.

MDU Resources

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. MDU Resources includes natural gas and oil production, construction materials and mining, domestic and international independent power production, natural gas pipelines and energy services, electric and natural gas utilities, and construction services.  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

Knife River Corporation mines aggregates and markets crushed stone, sand, gravel and related construction materials, including ready-mixed concrete, cement, asphalt and other value-added products, as well as performs integrated construction services, in the central and western United States, and in Alaska and Hawaii.   

• Knife River Corporation Website
• MDU Resources Group Website