Knife River Corporation (NYSE: KNF) is a leading U.S. provider of aggregates-based construction materials and contracting services. Originally founded in 1917 and spun off from MDU Resources Group in 2023, the company operates a vertically integrated business model across four geographic segments: Pacific, Northwest, Mountain, and Central, along with an Energy Services segment. Knife River mines, processes, and sells construction aggregates (crushed stone, sand, and gravel) and uses a significant portion of its 1.1+ billion tons of reserves internally to produce value-added downstream products like ready-mix concrete and asphalt. The company's contracting services division performs heavy-civil construction, asphalt and concrete paving, and site development, primarily for public-sector infrastructure projects such as highways, local roads, and bridges. By controlling the raw material supply, Knife River captures margins across the entire construction value chain and ensures quality control. The company serves federal, state, and municipal governments, as well as industrial, commercial, and residential developers, with a strategic focus on mid-sized, high-growth markets.