HOUSTON, June 22 /PRNewswire-FirstCall/ -- Lyondell Chemical Company (NYSE: LYO) announced the following schedule and contact information for its second-quarter earnings release and teleconference:

     Earnings Release:     July 22, 2004
                           8:30 a.m. Eastern Time
                           By PR Newswire distribution and Lyondell web site
                           at http://www.lyondell.com/earnings .


     Teleconference:       July 22, 2004
                           11:30 a.m. Eastern Time
                           Hosted by Doug Pike, Director, Investor Relations,
                           and Kevin DeNicola, Senior Vice President and Chief
                           Financial Officer.
                           Listen-only mode via telephone and Internet
                           broadcast on Lyondell's web site at
                           http://www.lyondell.com/earnings .

     Dial-In Numbers:      U.S. Toll Free: 888-391-2385, Pass Code:  Lyondell
                           International:  484-644-0641, Pass Code:  Lyondell
                           Please call 10 to 15 minutes before the scheduled
                           start of the teleconference.

     Web Replay:           Will be available at 1:30 p.m. Eastern Time on
                           July 22 at http://www.lyondell.com/earnings .

     Telephone Replay:     Will be available from 1:30 p.m. Eastern Time
                           July 22 to 5:00 p.m. Eastern Time on July 30.
                           The dial-in numbers are:
                           United States:  800-294-4406, Pass Code:  5549
                           International:  402-220-9778, Pass Code:  5549

     Related Disclosures:  Reconciliations of non-GAAP financial measures to
                           GAAP financial measures and any other applicable
                           disclosures (including the earnings release) will
                           be available at 11:30 a.m. Eastern Time on
                           July 22 at http://www.lyondell.com/earnings .

(Minimum requirements to listen to broadcast: The Windows Media Player software, downloadable free from http://www.microsoft.com/windows/windowsmedia/EN/default.asp , and at least a 28.8Kbps connection to the Internet, or the RealPlayer software, downloadable free from http://www.real.com/products/player/index.html , and at least a 28.8Kbps connection to the Internet. If you experience problems listening to the broadcast, send an email to webcastsupport@tfprn.com .)

SOURCE Lyondell Chemical Company