MDU Resources Group, Inc. operates as a diversified natural resources company primarily within the United States. Its key function lies in the delivery and development of essential infrastructure, foc... MDU Resources Group, Inc. operates as a diversified natural resources company primarily within the United States. Its key function lies in the delivery and development of essential infrastructure, focusing on electric and natural gas services alongside construction materials and services. With a rich history that traces back to its founding in 1924, the company plays a crucial role in sectors such as energy distribution, construction, and mining. MDU Resources is recognized for its two major operational segments: Utility segment, which includes the electric and natural gas services, ensuring uninterrupted power and energy delivery to residential, commercial, and industrial customers; and Construction Materials and Services segment, which encompasses the production of aggregates, asphalt, and ready-mix concrete, alongside heavy construction services. Headquartered in Bismarck, North Dakota, MDU Resources Group's strategic operations contribute significantly to building and maintaining the infrastructure that drives economic growth and development across various regions in the U.S., marking its significance in the financial market.