Exhibit 23 CONSENT OF INDEPENDENT ACCOUNTANTS We consent to the incorporation by reference in the following registration statement of the Lyondell Petrochemical Company 401(k) and Savings Plan, formerly the Lyondell Petrochemical Company Capital Accumulation Plan for Non- Represented Employees, (the "Plan"), Post-Effective Amendment No. 4 to Registration Statement on Form S-8 (No. 33-26867) of our report dated June 13, 1996, on our audits of the statements of net assets available for benefits of the Plan as of December 31, 1995 and June 30, 1995, the related statement of changes in net assets available for benefits for the six months ended December 31, 1995 and the supplemental schedule for the six months ended December 31, 1995, which report is included in this Transition Report on Form 11-K. Coopers & Lybrand L.L.P. Houston, Texas June 26, 1996 17