Founded in 1957, O'Reilly Automotive operates a vast network of over 6,500 stores across the United States, Puerto Rico, Mexico, and Canada. The company's business model is built on a dual-market strategy that caters equally to professional mechanics and everyday consumers. Its product offerings include branded and private-label replacement parts, maintenance items, and automotive accessories. O'Reilly supports its retail locations through a robust hub-and-spoke supply chain, utilizing regional distribution centers to ensure rapid parts availability, including same-day or next-day delivery for hard-to-find items. The company has grown significantly through both organic store expansion and strategic acquisitions of regional auto parts chains.