O'Reilly Automotive, Inc. Announces 2005 First Quarter Earnings Release and Conference Call

SPRINGFIELD, Mo.--April 20, 2005--O'Reilly Automotive, Inc. (the "Company") announced the release date for first quarter 2005 earnings as Tuesday, April 26, 2005, with a conference call to follow Wednesday, April 27, 2005.

The Company's first quarter 2005 earnings will be released after 5:30 p.m. central time on Tuesday, April 26, 2005, and can be viewed, at that time, on the Company's website at www.oreillyauto.com by clicking on "News".

Investors are invited to listen to the Company's conference call discussing the financial results for the first quarter of 2005, on April 27, 2005, at 10:00 a.m. central time, via webcast on the Company's website at www.oreillyauto.com by clicking on "News". A replay of the call will also be available on the Company's website following the conference call.

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 1,249 stores within the states of Alabama, Arkansas, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Mississippi, Missouri, Nebraska, North Carolina, Oklahoma, South Carolina, Tennessee, Texas and Virginia as of December 31, 2004.