HOUSTON, Nov. 14 /PRNewswire-FirstCall/ -- Morris Gelb, Executive Vice President and Chief Operating Officer of Lyondell Chemical Company (NYSE: LYO), will address analysts at the following event:

    Analyst        CSFB's 10th Annual Leveraged Finance Chemical Conference in
    Conference:    Houston, Wednesday, November 16, 2005, at 8:15 a.m. CST.

    Web Site       Live audio-only webcasting will be provided in
    Access:        RealPlayer(TM) and Windows Media formats.  Beginning at
                   8:15 a.m. CST on the day of the event, the webcast can be
                   accessed at www.lyondell.com/investorpresentations .

                   The replay webcast will be available by 2:30 p.m. CST on
                   November 16, 2005 at
                   www.lyondell.com/investorpresentations .
                   The replay will be available until February 16, 2006.

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

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

    ABOUT LYONDELL

Lyondell Chemical Company, headquartered in Houston, Texas, is North America's third-largest independent, publicly traded chemical company. Lyondell is a major global manufacturer of basic chemicals and derivatives including ethylene, propylene, titanium dioxide, styrene, polyethylene, propylene oxide and acetyls. It also is a significant producer of gasoline blending components. The company has a 58.75 percent interest in LYONDELL- CITGO Refining LP, a refiner of heavy, high-sulfur crude oil. As a result of Lyondell's November 30, 2004 acquisition of Millennium Chemicals Inc., Millennium and Equistar Chemicals, LP are wholly owned subsidiaries of Lyondell. Lyondell is a global company operating on five continents and employs approximately 10,000 people worldwide.

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