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Knife River Corp
Brian Gray leads Knife River Corp, a 14-state aggregates and contracting business spun out of MDU Resources in 2023.
Knife River Corp
Knife River Corp was separated from its former parent, MDU Resources Group, on May 31, 2023, as a fully independent, publicly traded company. Brian Gray, who previously ran the construction-materials segment for MDU, has led the business since 2021 and continued as President and CEO through the spinoff. The company's origins trace back decades within the utilities conglomerate, but its current structure is purpose-built to give allocators pure exposure to the aggregates and contracting cycle. The firm operates through a network of quarries, asphalt plants, and ready-mix concrete facilities across 14 states, primarily in the Upper Midwest, Texas, and the Pacific Northwest. Knife River's business segments include aggregates mining, asphalt production, ready-mix concrete, and contracting services. Its downstream contracting units bid on public highway and street projects, while its upstream materials business supplies third-party builders, creating a hedge across the construction value chain. Known project backlogs are driven by state DOT budgets and Infrastructure Investment and Jobs Act funding flows. No external fund commitments or LP structures operate alongside the corporate balance sheet. Total revenue for 2024 reached approximately $2.9 billion, with a workforce of roughly 5,000 employees across its decentralized regional operations. Headquarters remain in Bismarck, North Dakota. Gray has emphasized organic growth in existing markets while actively pursuing bolt-on acquisitions to expand quarry reserves and plant capacity. In February 2024, Knife River acquired Texas-based Strata Corporation, a ready-mix concrete and aggregates operator, for $480 million, deepening its footprint in the fast-growing Texas Triangle. February 2025: Acquired A.J. Weigand Construction Co. in Kansas, marking entry into the Kansas City metropolitan market. The spinoff structure itself is the key differentiator—unlike diversified industrials or pure-play quarry operators with thin contracting arms, Knife River represents an integrated model that captures margin from both material production and project installation. No other publicly traded aggregates company combines upstream reserves, midstream manufacturing, and downstream contracting at this scale across the same geography set, giving it an unusual feedback loop between public-sector bid activity and reserve planning.
General information
Firm type
Asset Manager
Year founded
2021
AUM
Undisclosed
Location
Region
North America
Country
United States
City
Bismarck
Corporate office
Bismarck, ND, United States
Principals
Brian Gray
President and CEO
Sector focus
Frequently asked questions
What was the rationale for the MDU Resources spinoff, and how did it change Knife River's capital allocation strategy?
The spinoff, completed in May 2023, allowed Knife River to operate independently with a management team and board focused exclusively on the construction-materials cycle. As a standalone entity, the company gained direct access to public equity and debt markets to fund acquisitions and capacity expansion, rather than competing for capital within a multi-line utility holding structure. The move also gave allocators a pure-play aggregates business uncorrelated to energy utility returns.
Which US regions represent Knife River's largest revenue concentrations?
Texas and the Pacific Northwest generate the largest revenue shares, followed by the Mountain West and Upper Midwest states. Texas in particular has seen significant bolt-on acquisition activity, including the $480 million purchase of Strata Corporation in 2024, driven by population migration and heavy highway construction spend. The company's geographic diversity across 14 states serves as a partial hedge against regional construction-cycle downturns.
Does Knife River participate in fund commitments or operate more like a traditional construction contractor?
Knife River does not operate any LP fund structures or invest in third-party private capital vehicles. It functions as a vertically integrated operating company—acquiring aggregates reserves on its own balance sheet, producing construction materials, and bidding directly on infrastructure contracts through its contracting services segment. All deployment is corporate-level capex or M&A.
How does Knife River source its acquisition pipeline?
The company relies on a decentralized regional management structure to identify targets, typically family-owned quarries and ready-mix operators with attractive reserve positions adjacent to existing Knife River markets. CEO Brian Gray has stated that the fragmented nature of the US aggregates industry provides a long runway for bolt-on M&A. Deal sourcing is proprietary and relationship-based, not intermediated through broad auction processes.
What role do federal infrastructure spending bills play in Knife River's business model?
The Infrastructure Investment and Jobs Act, passed in 2021, directly supports Knife River's core end markets through multi-year federal highway and bridge funding allocations. State DOT lettings drive the firm's contracting backlog, and the long-duration nature of these federal authorizations provides multi-year demand visibility for aggregates, asphalt, and ready-mix volumes. The company's exposure to public-sector infrastructure spending is a central structural feature of its revenue mix.
How is Knife River's governance structured post-spinoff, and who controls the board?
Knife River operates with an independent board of directors elected by public shareholders. As of the most recent proxy, no single family or entity holds a controlling block. The board includes former industrial executives and finance professionals familiar with capital-intensive industries. The governance structure is designed to support management's acquisition-led growth strategy while maintaining a shareholder return program that includes a quarterly dividend.
What is the balance between materials sales to third parties and internal consumption for Knife River's own contracting projects?
Knife River sells a significant portion of its aggregates, asphalt, and ready-mix concrete to external customers—including local builders, paving contractors, and commercial developers—while also consuming materials internally for its own contracting bids. This dual-channel model provides volume stability; when public-sector bid margins tighten, materials sales to third parties can partially offset contracting pressure, and vice versa.
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