O'Reilly Automotive Inc. is a leading specialty retailer and distributor of automotive aftermarket parts, tools, supplies, equipment, and accessories. Operating under the O'Reilly Auto Parts brand, the company serves both professional service providers and do‑it‑yourself customers through an extensive network of retail locations and robust online channels. Its stores and distribution centers focus on replacement parts, maintenance items, performance products, and repair tools for a wide range of domestic and imported vehicles, including cars, trucks, and SUVs. O'Reilly Automotive Inc. also offers value-added services such as parts lookup, repair advice, and in-store support to assist customers with vehicle maintenance and repair decisions. Headquartered in Springfield, Missouri, and founded in the United States, the company plays a significant role in the North American automotive aftermarket ecosystem by ensuring timely availability of critical parts and related products to both commercial repair shops and individual vehicle owners.