X0306 4 2012-12-11 0001489393 LyondellBasell Industries N.V. LYB 0001500482 Smolik Samuel L. STATIONSPLEIN 45 3013 AK P7 NETHERLANDS 1 VP HSE Class A ordinary shares 2012-12-11 4 A 0 2243.0000 54.0500 A 39622.0000 D Represents restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 37,379 granted on April 30, 2010 that vest on April 30, 2015. Of the 2,243 RSUs reported on this Form 4, 1,122 vest on April 30, 2013 and 1,121 vest on April 30, 2014. /s/ Amanda K. Maki, Attorney in Fact 2012-12-13