Murphy USA (MUSA) concentration risks

The company's concentration profile is dominated by a single supplier relationship. Over 78% of merchandise — including most nicotine products and grocery items — was purchased from Core-Mark in 2025, a high-share dependency by disclosed size. This is a dependency exposure rather than a structural one: the reliance reflects a deliberate single-source wholesale arrangement rather than a durable feature of the end-market, meaning a disruption in that relationship — whether from a pricing dispute, service failure, or counterparty event at Core-Mark — could materially affect the company's ability to stock shelves and generate fuel-driven traffic. There are no additional customer, geographic, or product concentration claims disclosed. The profile therefore reduces to a single, well-identified risk: the merchandise supply chain is almost entirely routed through one wholesaler. The filing discloses no secondary supplier or fallback arrangement in the quoted language. Investors should monitor the terms and stability of the Core-Mark relationship as the primary idiosyncratic lever in the concentration profile; commodity price dynamics and fuel margin trends, while meaningful to the business, are not part of the disclosed concentration disclosures reviewed here.

For the engine’s reasoning on MUSA’s current verdict — including which dimensions drove the score — see the per-dimension breakdown.

Concentration counts reflect items disclosed in each peer’s most recent 10-K; disclosed-size classification uses TrendMatrix’s internal 10-K extraction taxonomy.