Item 8.01. Other Events.

On December 4, 2012, LyondellBasell Industries N.V. (the "Company") entered into an Underwriting Agreement (the "Underwriting Agreement") with Barclays Capital Inc. (the "Underwriter") and the selling shareholders listed on Schedule A-1 thereto (the "Selling Shareholders"), relating to the underwritten offering and sale by the Selling Shareholders of 21,000,000 ordinary shares (the "Shares"), par value €0.04 per share, of the Company (the "Offering"). The Shares are being sold at a price to the public of $48.50 per share. The Underwriting Agreement contains customary representations, warranties and covenants of the Company and the Selling Shareholders, conditions to closing, indemnification obligations of the Company, the Selling Shareholders and the Underwriter, and termination and other customary provisions. The foregoing description of the Underwriting Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of the document which is attached as Exhibit 1.1 to this Current Report on Form 8-K and incorporated by reference herein. The Offering is expected to close on December 10, 2012.

The Offering was made pursuant to a shelf registration statement the Company filed with the Securities and Exchange Commission that became effective on November 8, 2011 (Registration No. 333-177806). Copies of certain legal opinions are filed as Exhibits 5.1and 8.1 to this Current Report on Form 8-K.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits

1.1 Underwriting Agreement dated December 4, 2012 among LyondellBasell Industries N.V., Barclays Capital Inc. and the selling shareholders named therein.

5.1 Opinion of De Brauw Blackstone Westbroek N.V., Dutch counsel for the Company.

8.1 Opinion of De Brauw Blackstone Westbroek N.V., Dutch counsel for the Company.

23.1 Consent of De Brauw Blackstone Westbroek N.V. (included in Exhibit 5.1).

23.2 Consent of De Brauw Blackstone Westbroek N.V. (included in Exhibit 8.1).

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