Exhibit 24.7


                          MOBIL PETRORAIL FINANCE INC.

                               POWER OF ATTORNEY

                        *    *    *    *    *    *    *

     KNOW ALL PERSONS BY THESE PRESENTS, that each of the undersigned directors
and/or officers of Mobil Petrorail Finance Inc., a Delaware corporation, hereby
constitutes and appoints CHARLES H. DUBOIS, MAXINE C. SCHNITZER and GORDON G.
GARNEY his or her true and lawful attorneys-in-fact and agents, each of such
persons having full power to act without the others, in any and all capacities,
(i) to execute and file in his or her name and capacity on behalf of Mobil
Petrorail Finance Inc. and (ii) to sign in his or her name and capacity on
behalf of the individual, a Shelf Registration Statement on Form S-3 or any
appropriate form including amendments and/or post-effective amendments and
supplements, together with all exhibits and other documents necessary or
appropriate in connection therewith, for registration with the Securities and
Exchange Commission, Washington, D.C., under the Securities Act of 1933, as
amended, of $650,000,000 of Pass Through Certificates and a Mobil Corporation
Guaranty with respect thereto.

     AND FURTHER, that each of the undersigned directors and/or officers of
Mobil Petrorail Finance Inc. hereby grants to said attorneys-in-fact and agents,
and each of them, full power and authority to do and perform any and all acts
and things essential and necessary to be done in and about the premises, as
fully to all intents and purposes as he or she might or could do in person in
connection with the proper exercise of the powers granted hereunder.

     IN WITNESS WHEREOF, the undersigned as directors and/or officers of Mobil
Petrorail Finance Inc. or as individuals, have hereunto set their hands as of
the 1st day of October, 1996.

NAME AND TITLE      /s/ Walter R. Arnheim
                    ----------------------------------------------------------
                    Walter R. Arnheim, Director, President: Principal Executive
                    Officer

NAME AND TITLE      /s/ Debra D. Drumheller
                    ----------------------------------------------------------
                    Debra D. Drumheller, Director, Chief Financial Officer:
                    Principal Financial Officer

NAME AND TITLE      /s/ Martha F. Keeth
                    ----------------------------------------------------------
                    Martha F. Keeth, Controller:  Principal Accounting Officer

NAME AND TITLE      /s/ Ralph N. Johanson, Jr.
                    ----------------------------------------------------------
                    Ralph N. Johanson, Jr., Director