MDU vs USLM

MDU Resources Group Inc.

MDU Resources Group, Inc. engages in the regulated energy delivery, and construction materials and services businesses in the United States. The company's Electric segment generates, transmits, and distributes electricity for residential, commercial, industrial, and municipal customers in Montana, North Dakota, South Dakota, and Wyoming. Its Natural Gas Distribution segment distributes natural gas for residential, commercial, and industrial customers in Idaho, Minnesota, Montana, North Dakota, Oregon, South Dakota, Washington, and Wyoming; and offers supply related value-added services. The company's Pipeline segment provides natural gas transportation and underground storage services through a regulated pipeline system primarily in the Rocky Mountain and northern Great Plains regions; and cathodic protection and other energy-related services. Its Construction Materials and Contracting segment mines, processes, and sells construction aggregates; produces and sells asphalt mix; and supplies ready-mixed concrete. This segment is also involved in the sale of cement, liquid asphalt, finished concrete products, and other building materials and related contracting services. The company's Construction Services segment designs, constructs, and maintains electrical and communication wiring and infrastructure, fire suppression systems, and mechanical piping and services; and overhead and underground electrical distribution and transmission lines, substations, external lighting, traffic signalization, and gas pipelines, as well as engages in the utility excavation activities. This segment also manufactures and distributes transmission line construction equipment; and constructs and maintains renewable energy projects. It serves manufacturing, commercial, industrial, institutional, and government customers, as well as utilities. The company was founded in 1924 and is headquartered in Bismarck, North Dakota.

United States Lime & Minerals Inc.

United States Lime & Minerals, Inc. manufactures and supplies lime and limestone products in the United States. The company extracts limestone from open-pit quarries and an underground mine, and processes it as pulverized limestone, quicklime, hydrated lime, and lime slurry. It supplies its products primarily to the construction customers, including highway, road, and building contractors; industrial customers, such as paper and glass manufacturers; environmental customers comprising municipal sanitation and water treatment facilities, and flue gas treatment processes; steel producers; oil and gas services companies; roof shingle manufacturers; and poultry and cattle feed producers. The company also has various royalty interests and non-operating working interests with respect to oil and gas rights in natural gas wells located in Johnson County, Texas in the Barnett Shale Formation. United States Lime & Minerals, Inc. was founded in 1948 and is headquartered in Dallas, Texas.