O'Reilly Automotive Inc. Announces 2004 First Quarter Earnings Release and Conference Call

SPRINGFIELD, Mo.--April 16, 2004--O'Reilly Automotive, Inc. (the "Company") announced the release date for first quarter earnings as Tuesday, April 27, 2004, with a conference call to follow Wednesday, April 28, 2004

The Company's first quarter earnings will be released after 5:30 p.m. central time on Tuesday, April 27, 2004, 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 webcast of the Company's conference call discussing the 2004 first quarter financial results on Wednesday, April 28, 2004, after 11:00 a.m. central time on the Company's website at www.oreillyauto.com by clicking on "News."

O'Reilly Automotive 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 1,109 stores within the states of Alabama, Arkansas, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Mississippi, Missouri, Nebraska, North Carolina, Oklahoma, Tennessee, Texas and Virginia as of December 31, 2003.