Webcast Alert: Lyondell President & Chief Executive Officer to Address 15th Annual Smith Barney Citigroup Chemical Conference

HOUSTON, Nov. 19 /PRNewswire-FirstCall/ -- Dan F. Smith, President and Chief Executive Officer of Lyondell Chemical Company (NYSE: LYO), will address analysts at the following event:

     Analyst              15th Annual Smith Barney Citigroup Chemical
     Conference:          Conference in New York, Tuesday, December 7, 2004,
                          at 9:20 a.m. Eastern Time.

     Web Site Access:     Live audio-only webcasting will be provided in
                          RealPlayer(TM) and Windows Media formats.  Beginning
                          at 9:20 a.m. Eastern Time on the day of the event,
                          the webcast can be accessed at
                          http://www.lyondell.com/investorpresentations .

                          The replay webcast will be available by 12:30 p.m.
                          Eastern Time on December 7, 2004 at
                          http://www.lyondell.com/investorpresentations .  The
                          replay will be available until January 10, 2005.

     Presentation:        The slides will be available at the time of the
                          presentation and afterwards at
                          http://www.lyondell.com/investorpresentations .

     Related Disclosures: Reconciliations of non-GAAP financial measures to
                          GAAP financial measures and any other applicable
                          disclosures (including the slides) will be available
                          at the time of the presentations and afterwards at
                          http://www.lyondell.com/investorpresentations .

    ABOUT LYONDELL

Lyondell Chemical Company, (http://www.lyondell.com ), headquartered in Houston, Texas, is a leading producer of: propylene oxide (PO); PO derivatives, propylene glycol (PG), butanediol (BDO) and propylene glycol ether (PGE); and styrene monomer and MTBE as co-products of PO production. Through its 70.5% interest in Equistar Chemicals, LP, Lyondell also is one of the largest producers of ethylene, propylene and polyethylene in North America and a leading producer of ethylene oxide, ethylene glycol, high value-added specialty polymers and polymeric powder. Through its 58.75% interest in LYONDELL-CITGO Refining LP, Lyondell is one of the largest refiners in the United States processing extra heavy Venezuelan crude oil to produce gasoline, low sulfur diesel and jet fuel.

SOURCE: Lyondell Chemical Company

CONTACT: media, Susan P. Moore, +1-713-309-4645, or investors, Douglas J. Pike, +1-713-309-4590, both of Lyondell Chemical Company

Web site: http://www.lyondell.com

http://www.lyondell.com/investorpresentations

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