Exhibit 99.1

FOR IMMEDIATE RELEASE

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O’REILLY AUTOMOTIVE, INC. NAMES NEW CFO

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Springfield, MO, May 24, 2006 -- O’Reilly Automotive, Inc. (“O’Reilly” or “the Company”) (Nasdaq: ORLY) today announced that Tom McFall will be joining the Company May 31, 2006, as Senior Vice-President Finance/Chief Financial Officer (“CFO”). Mr. McFall succeeds Jim Batten, who will retain the role of Treasurer.

Mr. McFall joins O’Reilly from CSK Auto, where he served as CFO – Midwest Operation, following CSK’s recent acquisition of Murray’s Discount Auto Stores in Belleville, Michigan (Murray’s). Previously, Mr. McFall served Murray’s for 8 years as a key member of the company’s executive team as Controller, Vice President of Finance, and CFO, with direct responsibility for finance and accounting, distribution and logistics operations. Prior to joining Murray’s, Mr. McFall was Audit Manager with Ernst & Young, LLP in Detroit, Michigan. Mr. McFall graduated from Michigan State University in 1992 with a Bachelor’s Degree in Accounting and is a CPA. He is 36 years old.

Mr. Batten will remain with the Company as Treasurer and assist Mr. McFall in his transition to O’Reilly. He will continue to be involved with investor relations, financial reporting and will serve on the Company’s Finance Committee. He will ultimately transition to a less than full time role with the Company.

Greg Henslee, CEO and Co-President, stated “Tom McFall brings significant retail and automotive aftermarket industry experience to our Company and we look forward to his contributions toward our continued growth. We are very pleased with Jim’s plans to stay with the Company as Treasurer, which will ensure a smooth transition and allow Jim more personal time to spend with his wife and four children”.

O’Reilly Automotive, Inc. is one of the largest specialty retailers of automotive aftermarket parts, tools, supplies, equipment and accessories in the United States, serving both the do-it-yourself and professional installer markets. Founded in 1957 by the O’Reilly family, the Company operated 1,506 stores within the states of Alabama, Arkansas, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Minnesota, Mississippi, Missouri, Montana, Nebraska, North Carolina, North Dakota, Oklahoma, South Carolina, South Dakota, Tennessee, Texas, Virginia, Wisconsin and Wyoming as of March 31, 2006.

The Company claims the protection of the safe-harbor for forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements can be identified by forward-looking words such as “expect,” “believe,” “anticipate,” “should,” “plan,” “intend,” “estimate,” “project,” “will” or similar words. In addition, statements contained within this press release that are not historical facts are forward-looking statements, such as statements discussing among other things, expected growth, store development and expansion strategy, business strategies, future revenues and future performance. These forward-looking statements are based on estimates, projections, beliefs and assumptions and are not guarantees of future events and results. Such statements are subject to risks, uncertainties and assumptions, including, but not limited to, competition, product demand, the market for auto parts, the economy in general, inflation, consumer debt levels, governmental approvals, our ability to hire and retain qualified employees, risks associated with the integration of acquired businesses, weather, terrorist activities, war and the threat of war. Actual results may materially differ from anticipated results described or implied in these forward-looking statements. Please refer to the Risk Factors sections of the Company’s Form 10-K for the year ended December 31, 2005, for more details.