EXHIBIT 23.1(b)



              CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS


         We consent to the use of our report dated April 16, 1999, with
respect to the financial statements and supplemental schedules of the
Employees Savings Plan of Mobil Oil Corporation included in the Plan's Annual
Report (Form 11-K), for the fiscal year ended January 31, 1999, filed with the
Securities and Exchange Commission, incorporated by reference in this
Post-Effective Amendment No. 1 on Form S-8 to the Registration Statement on
Form S-4 (No. 333-75659) of Exxon Corporation for the registration of shares
of its common stock.


                                                       /s/ ERNST & YOUNG LLP



Fairfax, Virginia
September 22, 1999