================================================================================

                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

                                    FORM 11-K


                 ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934


    For the fiscal year ended December 31, 1998 Commission File Number 1-973

     A.   Full title of the plan and the address of the plan, if different  from
          that of the issuer named below:


                     PUBLIC SERVICE ELECTRIC AND GAS COMPANY
                      THRIFT AND TAX-DEFERRED SAVINGS PLAN
                                  80 PARK PLAZA
                            NEWARK, NEW JERSEY 07102
                          MAILING ADDRESS: P.O. Box 570
                          NEWARK, NEW JERSEY 07101-0570


     B.   Name of issuer of the  securities  held  pursuant  to the plan and the
          address of its principal executive office:


                                   See page 2.

================================================================================



Stable Value Fund                     THE PRUDENTIAL LIFE INSURANCE
PRIMCO CAPITAL MANAGEMENT             COMPANY OF AMERICA
101 SOUTH FIFTH STREET, SUITE 2150    PRUDENTIAL PLAZA
LOUISVILLE, KENTUCKY 40202            NEWARK, NEW JERSEY 07101

PRINCIPAL MUTUAL LIFE                 JOHN HANCOCK MUTUAL LIFE
INSURANCE COMPANY                     INSURANCE COMPANY
THE PRINCIPAL FINANCIAL GROUP         JOHN HANCOCK PLACE, 27th FLOOR
DES MOINES, IOWA 50392-0001           BOSTON, MASSACHUSSETTS 02117

THE CHASE MANHATTAN BANK              STATE STREET BANK AND TRUST COMPANY
270 PARK AVENUE                       225 FRANKLIN STREET
NEW YORK, NEW YORK 10017              BOSTON, MASSACHUSSETTS 02110-2804

J.P. MORGAN                           CAISSE des DEPOTS
60 WALL STREET                        9 WEST 57th STREET
NEW YORK, NEW YORK 10260              NEW YORK, NEW YORK 10019

METROPOLITAN LIFE INSURANCE           Enterprise Common Stock Fund and ESOP Fund
COMPANY                               PUBLIC SERVICE ENTERPRISE GROUP
ONE MADISON AVENUE                    INCORPORATED
NEW YORK, NEW YORK 10010-3690         80 PARK PLAZA
                                      NEWARK, NEW JERSEY 07101-1171

ALLSTATE LIFE INSURANCE COMPANY       Large Company Stock Index Fund
ALLSTATE PLAZA WEST                   THE VANGUARD GROUP
3100 SANDERS ROAD                     INSTITUTIONAL DIVISION
NORTHBROOK, ILLINOIS 60062            P.O. BOX 2900
                                      VALLEY FORGE, PENNSYLVANIA 19482

NEW YORK LIFE INSURANCE               Intermediate Government Securities Fund
COMPANY                               DELAWARE MANAGEMENT COMPANY INC.
501 MADISON AVENUE                    ONE COMMERCE SQUARE
NEW YORK, NEW YORK 10010              2005 MARKET STREET
                                      PHILADELPHIA, PENNSYLVANIA 19103

FIRST ALLMERICA FINANCIAL LIFE        International Stock Fund
INSURANCE COMPANY                     T. ROWE PRICE INC.
440 LINCOLN STREET                    100 EAST PRATT STREET
WORCESTER, MASSACHUSETTS 01653        BALTIMORE, MARYLAND 02120

AIG LIFE INSURANCE COMPANY            Mid/Small Company Stock Fund
ONE ALICO PLAZA                       PUTNAM INVESTMENTS
P.O. BOX 667                          P.O. BOX 41203
WILMINGTON, DELAWARE 19899            PROVIDENCE, RHODE ISLAND 02940





                     PUBLIC SERVICE ELECTRIC AND GAS COMPANY

- --------------------------------------------------------------------------------

                      THRIFT AND TAX-DEFERRED SAVINGS PLAN

                                      INDEX
                                      -----

                                                                            PAGE
                                                                            ----

INDEPENDENT AUDITORS' REPORT..............................................     4

STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS
  AS OF DECEMBER 31, 1998 AND 1997........................................   5-8

STATEMENTS OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS
  FOR THE YEARS ENDED DECEMBER 31, 1998 and 1997..........................  9-12

NOTES TO FINANCIAL STATEMENTS............................................. 13-26

SIGNATURES................................................................    27

EXHIBIT INDEX.............................................................    28




                          INDEPENDENT AUDITORS' REPORT




Employee Benefits Committee of
Public Service Electric and Gas Company:

We have audited the accompanying statements of net assets available for benefits
of the Public Service  Electric and Gas Company Thrift and Tax- Deferred Savings
Plan (the "Plan") as of December 31, 1998 and 1997,  and the related  statements
of changes in net assets available for benefits for the years then ended.  These
financial  statements  are the  responsibility  of the  Plan's  management.  Our
responsibility  is to express an opinion on these financial  statements based on
our audits.

We  conducted  our  audits  in  accordance  with  generally   accepted  auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

In our  opinion,  such  financial  statements  present  fairly,  in all material
respects, the net assets available for benefits of the Plan at December 31, 1998
and 1997,  and the changes in net assets  available  for  benefits for the years
then ended in conformity with generally accepted accounting principles.

Our audits  were  conducted  for the  purpose of forming an opinion on the basic
financial  statements taken as a whole. The supplemental  information by fund is
presented  for  the  purpose  of  additional  analysis  of the  basic  financial
statements rather than to present information regarding the net assets available
for benefits and changes in net assets  available for benefits of the individual
funds,  and is not a  required  part of the  basic  financial  statements.  This
information is the responsibility of the Plan's management. Such information has
been  subjected  to the auditing  procedures  applied in our audits of the basic
financial  statements  and, in our  opinion,  is fairly  stated in all  material
respects when considered in relation to the basic financial  statements taken as
a whole.


DELOITTE & TOUCHE LLP
Parsippany, New Jersey
June 4, 1999


                                                                        PUBLIC SERVICE ELECTRIC AND GAS COMPANY
                                                                         THRIFT AND TAX-DEFERRED SAVINGS PLAN
                                                                    STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS
                                                                            As of December 31, 1998


                                                                           Supplemental Information by Fund
                                                 --------------------------------------------------------------------------------
                                                                                                   Intermediate
                                                    Stable        Enterprise      Large Company     Government      International
                                                  Value Fund     Common Stock      Stock Index      Securities          Stock
                                        Total        3/98            Fund              Fund            Fund             Fund
                                   ----------------------------------------------------------------------------------------------
                                                                                                 
ASSETS
Investments, at fair value
  Plan interest in Master
  Employee Benefit Plan Trust      $ 584,360,039 $ 222,754,910      $ 61,065,698    $ 137,892,728     $ 7,781,284  $ 18,753,194
     Receivables-Interest
       and Dividends                   1,386,991     1,227,635           159,286                -               -             -
                                   --------------------------------------------------------------------------------------------
         Total Assets              $ 585,747,030 $ 223,982,545      $ 61,224,984    $ 137,892,728     $ 7,781,284  $ 18,753,194
                                   ============================================================================================

LIABILITIES
 Accounts Payable                  $     748,946 $     485,495      $    192,026    $     517,829     $   (26,055) $  (265,684)
                                   --------------------------------------------------------------------------------------------
        Total Liabilities                748,946       485,495           192,026          517,829         (26,055)    (265,684)
                                   --------------------------------------------------------------------------------------------
 Net Assets Available for Benefits $ 584,998,084 $ 223,497,050      $ 61,032,958    $ 137,374,899     $ 7,807,339  $ 19,018,878
                                   ============================================================================================

SEE NOTES TO FINANCIAL STATEMENTS.





                                                                        PUBLIC SERVICE ELECTRIC AND GAS COMPANY
                                                                         THRIFT AND TAX-DEFERRED SAVINGS PLAN
                                                                    STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS
                                                                                As of December 31, 1998



                                                                    Supplemental Information by Fund (Continued)
                                   ---------------------------------------------------------------------------------------------
                                     Mid/Small    Cons 3/98     Mod 3/98    Aggressive
                                      Company      Pre-Mix      Pre-Mix       Pre-Mix        ESOP       Holding       Trust
                                    Stock Fund    Portfolio    Portfolio     Portfolio       Fund       Account      Loan Fund
                                   ---------------------------------------------------------------------------------------------
                                                                                              
ASSETS
 Investments, at fair value
   Plan interest in Master          $ 36,835,566  $17,778,510 $ 33,591,006  $ 29,510,191  $ 6,040,351  $ 1,083,382 $ 11,273,219
   Employee Benefit Plan Trust
      Receivables-Interest
        and Dividends                          -            -            -             -           70            -            -
                                   ---------------------------------------------------------------------------------------------
         Total Assets               $ 36,835,566  $17,778,510 $ 33,591,006  $ 29,510,191  $ 6,040,421  $ 1,083,382 $ 11,273,219
                                   =============================================================================================
LIABILITIES
 Accounts Payable                   $   (543,140) $  (140,920)$    (17,176) $    (15,449) $         -  $   602,730 $    (40,710)
                                   ---------------------------------------------------------------------------------------------
        Total Liabilities               (543,140)    (140,920)     (17,176)      (15,449)           -      602,730      (40,710)
                                   ---------------------------------------------------------------------------------------------

 Net Assets Available for Benefits  $ 37,378,706  $17,919,430 $ 33,608,182  $ 29,525,640  $ 6,040,421  $   480,652 $ 11,313,929
                                   =============================================================================================

SEE NOTES TO FINANCIAL STATEMENTS.





                                                               PUBLIC SERVICE ELECTRIC AND GAS COMPANY
                                                                  THRIFT AND TAX-DEFERRED SAVINGS PLAN
                                                             STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS
                                                                        As of December 31, 1997

                                                                           Supplemental Information by Fund
                                                         ---------------------------------------------------------------------
                                                                                         Large
                                                                        Enterprise      Company      Interm.
                                                            Stable        Common         Stock      Government  International
                                                             Value         Stock         Index      Securities      Stock
                                                Total        Fund          Fund          Fund          Fund         Fund
                                           -----------------------------------------------------------------------------------
                                                                                                
ASSETS
 Investments, at fair value
   Plan interest in Master Employee
       Benefit Plan Trust                   $502,663,165  $210,845,416   $48,490,434  $108,715,029   $5,504,992   $19,090,410
      Receivables-Investments Sold               302,668             -       302,668             -            -             -
      Receivables-Interest and Dividends       1,101,111     1,097,432         3,679             -            -             -
                                           -----------------------------------------------------------------------------------

        Total Assets                        $504,066,944  $211,942,848   $48,796,781  $108,715,029   $5,504,992   $19,090,410
                                           ===================================================================================

LIABILITIES
 Accounts Payable                              $ 840,741    $ (798,775)    $ 202,534     $ 445,596      $ 2,354     $ 490,588
 Transfer to/from Employee Savings Plan           (1,943)       (1,943)            -             -            -             -
 Forfeitures                                      10,429             -         6,753         1,660          321           356
                                           -----------------------------------------------------------------------------------
        Total Liabilities                        849,227      (800,718)      209,287       447,256        2,675       490,944
                                           -----------------------------------------------------------------------------------

     Net Assets Available for Benefits      $503,217,717  $212,743,566   $48,587,494  $108,267,773   $5,502,317   $18,599,466
                                           ===================================================================================

SEE NOTES TO FINANCIAL STATEMENTS.











                                                                  PUBLIC SERVICE ELECTRIC AND GAS COMPANY
                                                                     THRIFT AND TAX-DEFERRED SAVINGS PLAN
                                                                STATEMENT OF NET ASSETS AVAILABLE FOR BENEFITS
                                                                            As of December 31, 1997


                                                                 Supplemental Information by Fund (Concluded)
                                           -----------------------------------------------------------------------------------------


                                               Mid/Small     Conserv.      Moderate    Aggressive
                                                Company      Pre-Mix       Pre-Mix      Pre-Mix       ESOP       Holding    Trust
                                               Stock Fund    Portfolio     Portfolio    Portfolio     Fund       Account  Loan Fund
                                           -----------------------------------------------------------------------------------------
                                                                                                    
ASSETS
 Investments, at fair value
   Plan interest in Master Employee
        Benefit Plan Trust                    $29,445,972  $13,370,272   $27,710,916  $22,548,413  $5,292,291   $554,186 $11,094,834
      Receivables-Investments Sold                     -            -             -            -           -          -            -
      Receivables-Interest and Dividends               -            -             -            -           -          -            -
                                           -----------------------------------------------------------------------------------------

         Total Assets                         $29,445,972  $13,370,272   $27,710,916  $22,548,413  $5,292,291   $554,186 $11,094,834
                                           =========================================================================================

LIABILITIES
 Accounts Payable                              $   83,943    $ (82,013)     $ 88,155     $ 47,558       $ 423   $409,814   $(49,436)
 Transfer to/from Employee Savings Plan                -            -             -            -           -          -           -
 Forfeitures                                          446          102           109          682           -          -          -
                                           -----------------------------------------------------------------------------------------
        Total Liabilities                          84,389      (81,911)       88,264       48,240         423    409,814    (49,436)
                                           -----------------------------------------------------------------------------------------

     Net Assets Available for Benefits        $29,361,583  $ 13,452,183  $27,622,652  $22,500,173  $5,291,868   $144,372 $11,144,270
                                           =========================================================================================

SEE NOTES TO FINANCIAL STATEMENTS.



                                                                             PUBLIC SERVICE ELECTRIC AND GAS COMPANY
                                                                              THRIFT AND TAX-DEFERRED SAVINGS PLAN
                                                                              STATEMENT OF CHANGES IN NET ASSETS
                                                                                     AVAILABLE FOR BENEFITS
                                                                             For the Year Ended December 31, 1998



                                                                                  Supplemental Information by Fund
                                                               -------------------------------------------------------------------
                                                                      Stable          Stable          Enterprise     Large Company
                                                                      Value         Value Fund       Common Stock     Stock Index
                                                      Tota1           Fund             3/98              Fund             Fund
ADDITIONS                                        ---------------------------------------------------------------------------------
                                                                                                     
 Participant Deposits                             $ 32,002,038   $  1,887,226   $    6,243,226      $  3,865,872    $   7,283,918
 Employers Contributions                             7,894,743        556,528        1,801,787           510,169        1,826,763
 Interfund Transfers - net                                   -   (211,462,750)     217,502,284        (2,931,620)      (3,019,472)
                                                 ---------------------------------------------------------------------------------
      Total Deposits and Contributions              39,896,781   (209,018,996)     225,547,297         1,444,421        6,091,209

Plan Interest in Master Trust Investment Income     82,635,723      3,410,156       10,349,093        15,566,155       30,635,468
                                                 ---------------------------------------------------------------------------------
        Total Additions                            122,532,504   (205,608,840)     235,896,390        17,010,576       36,726,677
                                                 ---------------------------------------------------------------------------------
DEDUCTIONS
 Withdrawals                                        36,763,026      6,990,553       11,271,806         4,022,439        6,321,229
 Forfeitures                                           351,229          7,815           26,517            76,863           85,682
 Administrative Expenses                             1,308,125        182,059          413,712           119,527          282,395
 Transfer to/(from) Employee Savings Plan            2,329,757        (45,701)         687,305           346,283          930,245
                                                 ---------------------------------------------------------------------------------
        Total Deductions                            40,752,137      7,134,726       12,399,340         4,565,112        7,619,551
                                                 ---------------------------------------------------------------------------------
INCREASE (DECREASE) IN NET
 ASSETS AVAILABLE FOR BENEFITS                      81,780,367   (212,743,566)     223,497,050        12,445,464       29,107,126

NET ASSETS AVAILABLE FOR
BENEFITS  -  BEGINNING OF YEAR                     503,217,717    212,743,566                -        48,587,494      108,267,773
                                                 ---------------------------------------------------------------------------------
NET ASSETS AVAILABLE
FOR BENEFITS  -  END OF YEAR                      $584,998,084   $          -   $  223,497,050      $ 61,032,958    $ 137,374,899
                                                 =================================================================================



                                                   Intermediate
                                                    Government    International  Mid/Small
                                                    Securities       Stock       Company
                                                       Fund        Stock Fund
ADDITIONS                                        ------------------------------------------
                                                                      
 Participant Deposits                              $   499,062   $ 1,823,695   $ 3,095,438
 Employers Contributions                               139,447       467,030       762,754
 Interfund Transfers - net                           1,486,850    (3,958,350)      769,653
                                                 ------------------------------------------
      Total Deposits and Contributions               2,125,359    (1,667,625)    4,627,845

Plan Interest in Master Trust Investment Income        512,973     3,168,808     5,780,448
                                                 ------------------------------------------
      Total Additions                                2,638,332     1,501,183    10,408,293
                                                 ------------------------------------------

 Withdrawals                                           302,645     1,043,012     1,859,213
 Forfeitures                                             2,199        33,844        40,843
 Administrative Expenses                                14,858        44,792        72,955
 Transfer to/(from) Employee Savings Plan               13,608       (39,877)      418,159
                                                 ------------------------------------------
        Total Deductions                               333,310     1,081,771     2,391,170
                                                 ------------------------------------------

INCREASE (DECREASE) IN NET
 ASSETS AVAILABLE FOR BENEFITS                       2,305,022       419,412     8,017,123

NET ASSETS AVAILABLE FOR
BENEFITS  -  BEGINNING OF YEAR                       5,502,317    18,599,466    29,361,583
                                                 ------------------------------------------
NET ASSETS AVAILABLE
FOR BENEFITS  -  END OF YEAR                       $ 7,807,339   $19,018,878   $37,378,706
                                                 ==========================================

SEE NOTES TO FINANCIAL STATEMENTS.




                                                                            PUBLIC SERVICE ELECTRIC AND GAS COMPANY
                                                                              THRIFT AND TAX-DEFERRED SAVINGS PLAN
                                                                              STATEMENT OF CHANGES IN NET ASSETS
                                                                                     AVAILABLE FOR BENEFITS
                                                                             For the Year Ended December 31, 1998


                                                                          Supplemental Information by Fund (Concluded)
                                                   ---------------------------------------------------------------------------------
                                                       Conservative       Con 3/98        Moderate        Mod 3/98       Aggressive
                                                         Pre-Mix           Pre-Mix        Pre-Mix         Pre-Mix          Pre-Mix
ADDITIONS                                               Portfolio         Portfolio      Portfolio       Portfolio        Portfolio
                                                   ---------------------------------------------------------------------------------
                                                                                                        
 Participant Deposits                                  $    234,332    $    888,717   $    664,322     $  2,125,260    $  3,390,970
 Employers Contributions                                     51,075         191,743        155,274          541,794         890,379
 Interfund Transfers - net                              (14,360,308)     16,636,930    (30,496,332)      29,709,487        (221,753)
                                                   ---------------------------------------------------------------------------------
      Total Deposits and Contributions                  (14,074,901)     17,717,390    (29,676,736)      32,376,541       4,059,596

Plan Interest in Master Trust Investment Income             909,226       1,147,037      2,427,496        2,146,686       4,618,073
                                                   ---------------------------------------------------------------------------------
        Total Additions                                 (13,165,675)     18,864,427    (27,249,240)      34,523,227       8,677,669
                                                   ---------------------------------------------------------------------------------

DEDUCTIONS
 Withdrawals                                                301,785         918,278        358,880          851,543       1,404,783
 Forfeitures                                                  7,226           5,893          6,442           16,465          41,440
 Administrative Expenses                                     10,405          25,155         20,892           49,084          59,659
 Transfer to/(from) Employee Savings Plan                   (32,908)         (4,329)       (12,802)          (2,047)        146,320
                                                   ---------------------------------------------------------------------------------
        Total Deductions                                    286,508         944,997        373,412          915,045       1,652,202
                                                   ---------------------------------------------------------------------------------
INCREASE (DECREASE) IN NET
 ASSETS AVAILABLE FOR BENEFITS                          (13,452,183)     17,919,430    (27,622,652)      33,608,182       7,025,467

NET ASSETS AVAILABLE FOR
BENEFITS  -  BEGINNING OF YEAR                           13,452,183               -     27,622,652                -      22,500,173
                                                   ---------------------------------------------------------------------------------
NET ASSETS AVAILABLE
FOR BENEFITS  -  END OF YEAR                           $          -    $ 17,919,430   $          -     $ 33,608,182    $ 29,525,640
                                                   =================================================================================






                                                   -----------------------------------------------
                                                        ESOP             Holding         Trust
ADDITIONS                                               Fund             Account       Loan Fund
                                                   -----------------------------------------------
                                                                             
 Participant Deposits                                  $         -      $       -     $         -
 Employers Contributions                                         -              -               -
 Interfund Transfers - net                                (179,664)             -         525,045
                                                   -----------------------------------------------
      Total Deposits and Contributions                    (179,664)             -         525,045

Plan Interest in Master Trust Investment Income          1,627,824        336,280               -
                                                   -----------------------------------------------
        Total Additions                                  1,448,160        336,280         525,045
                                                   -----------------------------------------------

DEDUCTIONS
 Withdrawals                                               704,564              -         412,296
 Forfeitures                                                     -              -               -
 Administrative Expenses                                    12,632              -               -
 Transfer to/(from) Employee Savings Plan                  (17,589)             -         (56,910)
                                                   -----------------------------------------------
        Total Deductions                                   699,607              -         355,386
                                                   -----------------------------------------------
INCREASE (DECREASE) IN NET
 ASSETS AVAILABLE FOR BENEFITS                             748,553        336,280         169,659

NET ASSETS AVAILABLE FOR
BENEFITS  -  BEGINNING OF YEAR                           5,291,868        144,372      11,144,270
                                                   -----------------------------------------------
NET ASSETS AVAILABLE
FOR BENEFITS  -  END OF YEAR                           $ 6,040,421      $ 480,652     $11,313,929
                                                   ===============================================

SEE NOTES TO FINANCIAL STATEMENTS.






                                                          PUBLIC SERVICE ELECTRIC AND GAS COMPANY
                                                         THRIFT AND TAX-DEFERRED SAVINGS PLAN
                                                           STATEMENT OF CHANGES IN NET ASSETS
                                                                 AVAILABLE FOR BENEFITS
                                                           For the Year Ended December 31, 1997


                                                                         Supplemental Information by Fund
                                                    -------------------------------------------------------------------

                                                                   Enterprise       Large     Intermediate
                                                                     Common        Company    Government  International
                                                    Stable Value      Stock      Stock Index  Securities     Stock
ADDITIONS                                  Total        Fund          Fund          Fund        Fund         Fund
                                      ---------------------------------------------------------------------------------
                                                                                         
 Participant Deposits                  $ 29,994,074   $ 9,898,808   $ 3,373,229   $ 5,856,382  $ 425,075   $ 2,086,826
 Employers Contributions                  7,838,936     2,914,900       509,513     1,545,771    120,656       547,793
 Interfund Transfers - net                        -   (18,391,914)   (4,310,890)    8,169,060   (448,913)   (2,438,528)
                                      ---------------------------------------------------------------------------------
      Total Deposits and Contributions   37,833,010    (5,578,206)     (428,148)   15,571,213     96,818       196,091
                                      ---------------------------------------------------------------------------------

Plan Interest in Master
   Trust Investment Income               65,619,099    14,250,996    10,812,598    25,575,566    479,157       987,310
                                      ---------------------------------------------------------------------------------
        Total Additions                 103,452,109     8,672,790    10,384,450    41,146,779    575,975     1,183,401
                                      ---------------------------------------------------------------------------------

DEDUCTIONS
 Withdrawals                             51,255,662    28,230,956     4,038,661     8,351,977    481,424     2,415,781
 Forfeitures                                340,335        97,171        32,201        88,570      9,305        31,606
 Administrative Expenses                    998,056       542,304        87,402       164,637      9,895        37,730
 Transfer to/(from) Employee
   Savings Plan                          (2,285,625)     (941,662)     (105,083)     (388,416)   (18,451)     (172,631)
                                      ---------------------------------------------------------------------------------
        Total Deductions                 50,308,428    27,928,769     4,053,181     8,216,768    482,173     2,312,486
                                      ---------------------------------------------------------------------------------

INCREASE (DECREASE) IN NET
 ASSETS AVAILABLE FOR BENEFITS           53,143,681   (19,255,979)    6,331,269    32,930,011     93,802    (1,129,085)

NET ASSETS AVAILABLE FOR
BENEFITS  -  BEGINNING OF YEAR          450,074,036   231,999,545    42,256,225    75,337,762  5,408,515    19,728,551
                                      ---------------------------------------------------------------------------------

NET ASSETS AVAILABLE
FOR BENEFITS  -  END OF YEAR           $503,217,717  $212,743,566   $48,587,494  $108,267,773 $5,502,317   $18,599,466
                                      =================================================================================

SEE NOTES TO FINANCIAL STATEMENTS.





                                                                PUBLIC SERVICE ELECTRIC AND GAS COMPANY
                                                                  THRIFT AND TAX-DEFERRED SAVINGS PLAN
                                                                   STATEMENT OF CHANGES IN NET ASSETS
                                                                         AVAILABLE FOR BENEFITS
                                                                   For the Year Ended December 31, 1997


                                                              Supplemental Information by Fund (Concluded)
                                      ---------------------------------------------------------------------------------------------


                                        Mid/Small   Conservative   Moderate    Aggressive
                                         Company      Pre-Mix      Pre-Mix       Pre-Mix        ESOP       Holding       Trust
ADDITIONS                              Stock Fund    Portfolio    Portfolio     Portfolio       Fund       Account      Loan Fund
                                      ---------------------------------------------------------------------------------------------
                                                                                                        
 Participant Deposits                   $ 2,409,279    $ 771,133  $ 2,321,616   $ 2,851,726          $ -    $      -           $ -
 Employers Contributions                    595,904      211,280      648,635       744,484            -           -             -
 Interfund Transfers - net                7,934,575    3,970,786    2,758,025     2,814,808     (232,439)          -       175,430
                                      ---------------------------------------------------------------------------------------------

      Total Deposits and Contributions   10,939,758    4,953,199    5,728,276     6,411,018     (232,439)           -      175,430
                                      ---------------------------------------------------------------------------------------------

Plan Interest in Master
   Trust Investment Income                4,410,891    1,396,726    3,420,292     3,091,544    1,096,756       97,263            -
                                      ---------------------------------------------------------------------------------------------
        Total Additions                  15,350,649    6,349,925    9,148,568     9,502,562      864,317       97,263      175,430
                                      ---------------------------------------------------------------------------------------------

DEDUCTIONS
 Withdrawals                              1,473,238    1,383,574    1,664,525     1,288,256      902,358            -    1,024,912
 Forfeitures                                 23,423        3,546       18,345        36,168            -            -            -
 Administrative Expenses                     41,808       20,560       45,651        42,036        6,033            -            -
 Transfer to/(from) Employee
   Savings Plan                            (181,983)     (71,562)     (94,785)     (182,353)      (5,983)           -     (122,716)
                                      ---------------------------------------------------------------------------------------------
        Total Deductions                  1,356,486    1,336,118    1,633,736     1,184,107      902,408            -      902,196
                                      ---------------------------------------------------------------------------------------------

INCREASE (DECREASE) IN NET
 ASSETS AVAILABLE FOR BENEFITS           13,994,163    5,013,807    7,514,832     8,318,455      (38,091)      97,263     (726,766)

NET ASSETS AVAILABLE FOR
BENEFITS  -  BEGINNING OF YEAR           15,367,420    8,438,376   20,107,820    14,181,718    5,329,959       47,109   11,871,036
                                      ---------------------------------------------------------------------------------------------

NET ASSETS AVAILABLE
FOR BENEFITS  -  END OF YEAR           $ 29,361,583  $13,452,183  $27,622,652  $ 22,500,173   $5,291,868    $ 144,372  $11,144,270
                                      =============================================================================================

SEE NOTES TO FINANCIAL STATEMENTS.



                         NOTES TO FINANCIAL STATEMENTS


1.   SUMMARY OF THE PLAN

The Board of Directors of Public Service  Electric and Gas Company (PSE&G or the
Company)  adopted  the PSE&G  Thrift and  Tax-Deferred  Savings  Plan  (Plan) to
encourage thrift and savings by eligible  employees  (Eligible  Employees) which
was first offered to Eligible Employees in 1981.  Effective January 1, 1996, the
trust that holds the Plan assets was converted into the Public Service  Electric
and Gas Master  Employee  Benefit  Plan Trust,  (Master  Trust),  a master trust
covering all of the Company's qualified  retirement plans including the Plan and
the Public  Service  Electric and Gas Company  Employee  Savings  Plan  (Savings
Plan).  (See  Note 4.  Investment  of the Plan and  Savings  Plan in the  Master
Trust.) The Plan was last amended December 21, 1998,  effective January 1, 1998.
The Plan amendments made during 1998 provide for the following:  PSEG Newark Bay
Services,  Inc. (formerly known as CEA Newark Bay Services,  Inc.) employees are
permitted to increase Basic Deposit from 6% to 8% and the merger, for investment
management  purposes,   of  the  Plan  and  Savings  Plan  Stable  Value  Funds,
Conservative and Moderate Pre-Mixed portfolios.

An employee may participate in the Plan from the date of hire.  Matching Company
contributions  begin  when an  employee  has  completed  one Year of  Service as
defined  by the  Plan.  At the time any  employee  who is a  Participant  in the
Savings  Plan  becomes an Eligible  Employee for the Plan,  that  employee  will
automatically  be enrolled in the Plan, all balances in the Savings Plan will be
transferred to the Plan and all contributions and investment elections in effect
for the  Savings  Plan  will  remain  in  effect.  Participation  in the Plan is
entirely  voluntary,  except with respect to those employees who participated in
the Employee Stock Ownership Plan (ESOP) Fund as a result of their participation
in the PSE&G Tax Reduction Act Employee Stock Ownership Plan (TRASOP) and/or the
PSE&G  Payroll-Based  Employee Stock Ownership Plan (PAYSOP),  which were merged
into this Plan in 1988.  Eligible Employees are those employees not covered by a
collective bargaining agreement of PSE&G or any affiliate of PSE&G participating
in the Plan  (together  hereafter  each  called an  "Employer"  or  collectively
"Employers").  Certain Eligible  Employees may also elect to have a distribution
from another  qualified  corporate plan  contributed as a rollover  contribution
with the approval of the Employee Benefits Committee of PSE&G  (Committee),  the
Plan Administrator.

Under the Plan,  each  participating  Employee  (Participant)  may elect to make
basic deposits to Investment  Funds of such  Participant's  choosing  within the
Thrift Account Fund of 1% - 8% of his/her  compensation  (Basic  Deposits),  and
his/her  respective  Employer  will  contribute  an amount equal to 50% thereof,
subject to certain exceptions and limitations (Employer Contributions). Employer
Contributions  with  respect to Basic  Deposits  in excess of 6% and up to 8% of
Compensation are made in shares of the Common Stock of Public Service Enterprise
Group  Incorporated  (Enterprise),  the  parent  of the  Company,  and  are  not
available  for transfer to any other Fund or  withdrawal  from the Plan prior to
the  Participant's  termination of employment.  In addition,  a Participant  may
elect  to make  supplemental  deposits  to such  Funds  in  increments  of 1% of
Compensation  up to an additional 17% of Compensation  (Supplemental  Deposits),
subject to certain  limitations,  without any  corresponding  matching  Employer
Contribution.




                                PSEG CONFIDENTIAL
                    NOTES TO FINANCIAL STATEMENTS (Continued)


Participants   may  designate  such  Basic  and/or   Supplemental   Deposits  as
Nondeferred   (post-income  tax  contributions)  or  Deferred   (pre-income  tax
contributions).

Each Participant may, within any Plan Year, make one or more Additional Lump Sum
Deposits  on a  Nondeferred  basis in minimum  amounts of $250 and in such total
amounts  which,  when  aggregated  with such  Participant's  Basic  Deposits and
Supplemental  Deposits,  do not exceed 25% of his or her  Compensation  for that
Plan Year and subject to the  limitations of the Internal  Revenue Code of 1986,
as amended (IRC).

The maximum amount of Deferred  Deposits to a  Participant's  Thrift Account may
have to be limited to less than 25% of Compensation to meet  requirements of the
IRC. The extent of any such  limitation  will be determined from time to time by
the  Committee  based  on  the  actual  pattern  of  Deferred  Deposits  by  all
Participants.  If the maximum  permitted  percentage of Compensation  for Thrift
Account Deferred  Deposits is reduced,  then all Deferred  Deposits in excess of
such percentage will automatically be treated as Nondeferred Deposits. This will
result in taxable income to the affected  Participants for Deferred  Deposits in
excess of any limit so  established.  The Committee  will attempt to assure that
any such limitation will apply only to future contributions,  but it is possible
that, in order to meet  requirements  of the IRC, the  limitation  will, in some
circumstances,  have to be  applied  retroactively.  Deferred  Deposits  may not
generally  be withdrawn  until age 59-1/2.  Nondeferred  Deposits,  on the other
hand,  may  be  withdrawn  at  any  time,   subject  to  certain  penalties  and
restrictions.

Thrift Account Deposits are made through payroll deductions by the Participant's
Employer,  rollover contributions from other qualified plans and Additional Lump
Sum Deposits.  Deposits by Participants  and  contributions  by their respective
Employers  are  transferred  to the  Trustee and  separately  held in the Plan's
Thrift  Account  Fund  of  the  Master  Trust  Fund  for  investment  and  other
transactions,  as  directed by  Participants.  Each  Participant  is entitled to
choose the investment Funds in which his/her Deposits and Employer Contributions
will be invested from among the investment Funds offered under the Plan,  except
for Employer Contributions with respect to Basic Deposits in excess of 6%, which
are invested in the Enterprise Common Stock Fund.

Bankers Trust Company is the Trustee of the Master Trust established pursuant to
the Plan. Hewitt Associates is the Record Keeper for the Plan.

Loan Provisions

The Trustee may,  subject to the approval of PSE&G's  Director,  Performance and
Rewards,  lend a Participant  who is employed by an Employer an amount up to 50%
of the value of the vested portion of such Participant's Thrift Account and ESOP
Fund, but no more than the aggregate value of such Participant's  Thrift Account
or $50,000,  whichever  is less.  Any  Participant  loan must be for a principal
amount  of  $1,000  or more and no  Participant  may have  more  than two  loans
outstanding at any time. All loans,  including interest thereon,  must be repaid
by payroll  deductions in equal monthly  installments  over a period of 12 to 60
months as selected by the  Participant.  However,  a Participant  may prepay any
such loan in full or in part in a lump sum in accordance  with such rules as are
prescribed by the Committee.  A Participant may not apply for more than one loan
in any calendar  year. A loan to a  Participant  is  considered an investment of
such  Participant's  Thrift  Account and  repayments  of  principal  of any loan
together with interest  thereon,  are invested in the Thrift Account  Investment
Funds of the Plan in accordance with the Participant's  then-current  investment
direction for Deposits and Employer Contributions.

Each  loan  bears  interest at a  rate  fixed from time to time by the Committee
taking into consideration the then-current interest rates being charged by other
lenders. The rate of interest applicable to any loan at its inception remains in
effect for the  duration  of such loan.  During  1998,  the rates of interest on
loans granted to  Participants,  by quarter and starting with the first quarter,
were 8-1/2%,  8-1/2%,  8-1/2% and 8-1/4%.  (See Note 2.  SIGNIFICANT  ACCOUNTING
POLICIES - Loans.)

2.   SIGNIFICANT ACCOUNTING POLICIES

Basis of Accounting

The  financial  statements  of the Plan have been  prepared in  accordance  with
generally accepted accounting principles.

Use of Estimates

The preparation of financial  statements in conformity  with generally  accepted
accounting principles requires management to make estimates and assumptions that
affect  the  reported  amounts  of assets  and  liabilities  and  disclosure  of
contingent  assets and  liabilities at the date of the financial  statements and
the reported amounts of revenues and expenses during the reporting period.
Actual results could differ from those estimates.

Dividends and Interest

Dividends, interest and other income attributable to each Investment Fund of the
Plan are reinvested in that Investment Fund to the extent not used to pay direct
expenses of that Investment Fund. (See Expenses of Plan, below.)

All Deposits and Employer Contributions in the Stable Value Fund are invested in
either traditional Guaranteed Investment Contracts issued by insurance companies
or other  financial  intermediaries  (Traditional  GICs) or  Benefit  Responsive
Agreements  (Synthetic  GICs) which are similar to Traditional  GICs in terms of
their  ability  to  preserve  principal  and  provide a stable  rate of  return.
Synthetic  GICs are  different  in that they are backed or secured by a separate
portfolio of high-quality fixed income securities that are directly owned by the
Plan.  The portfolio is wrapped by a "book value  wrapper",  usually a financial
institution  other than the  investment  manager  of the  Synthetic  GIC,  which
provides a crediting rate and which  guarantees that benefit  repayments will be
made at book value.  Deposits and Employer  Contributions  earn  interest at the
composite rate of all GICs in which the assets of the Stable Value Fund are then
invested.  Such rate varies as such Traditional and Synthetic GICs mature or are
entered  into,  and as  Deposits  and  Employer  Contributions  are  made to and
withdrawn  from such  contracts.  Under the contracts in effect during 1998, the
composite  rate of interest  earned by such assets so invested was not less than
6.35%.

ESOP Fund  Participants  receive  quarterly  payments  directly from the Trustee
equal to the dividends  paid to the Trustee on the shares of  Enterprise  Common
Stock held for their ESOP Fund.

Valuation of Investments

The value of the  Enterprise  Common Stock Fund,  the Large  Company Stock Index
Fund, the Intermediate Government Securities Fund, the International Stock Fund,
the Mid/Small  Company Stock Fund and the shares of Enterprise Common Stock held
by the ESOP Fund is based upon  quoted  market  values.  The value of the Stable
Value Fund is based on the contract value of all GICs in which the assets of the
Stable Value Fund are  invested.  These  contracts are included in the financial
statements  at  contract  value,  which   approximates  fair  value.   Temporary
investments are valued at cost, which approximates fair market value. Securities
transactions are accounted for on the trade date.

The Plan's  financial  statements  have been  prepared  in  accordance  with the
financial reporting  requirements of the Employee Retirement Income Security Act
of 1974,  as amended  (ERISA),  as permitted  by  applicable  rules.  Under such
requirements,  realized  gains  and  losses  from  securities  transactions  are
computed using an adjusted cost basis as prescribed by the Department of Labor's
(DOL) Rules and Regulations  for Reporting and Disclosure.  The adjusted cost is
the fair value of the  security at the  beginning  of the Plan Year,  or cost if
acquired  since that date.  Unrealized  gains and losses on securities  held for
investment  are  computed  on the basis of the change in fair value  between the
beginning and end of the Plan Year.

Expenses of Plan

Effective January 1, 1997, all expenses  incurred for the  administration of the
Plan,  including taxes and brokerage  costs,  are deducted from the Master Trust
Fund.

The assets of the Enterprise Common Stock Fund and the ESOP Fund are invested in
shares of Enterprise  Common Stock.  Shares of Enterprise  Common Stock required
for the  Enterprise  Common  Stock  Fund are  purchased  by the  Trustee  either
directly from Enterprise,  at its sole discretion,  on the open market through a
broker or from the ESOP Fund. In  situations  where the ESOP Fund is in a "sell"
position  and the  Enterprise  Common  Stock  Fund is in a "buy"  position,  the
Enterprise Common Stock Fund will buy from the ESOP Fund at the closing price on
the New York Stock Exchange for that day. In such case, no brokerage commissions
are charged on the  transaction.  Otherwise,  all shares sold for the Enterprise
Common  Stock Fund and the ESOP Fund are sold by the  Trustee on the open market
through a broker. The proceeds, net of brokerage commissions and transfer taxes,
are distributed to the Participant.

Loans

A loan to a Participant is considered an investment in such Participant's Thrift
Account and the principal amount of the loan is treated as a separate investment
within the various sub-accounts of the Participant's Thrift Account.  Repayments
of the principal  amount of the loan are credited to each such  sub-account  and
repayments of principal along with any accrued  interest thereon are invested in
the Thrift  Account  Investment  Funds in the same  manner as the  Participant's
then-current investment direction for Deposits and Employer Contributions.

Loan amounts are taken from  sub-accounts of a  Participant's  Thrift Account in
the following order:

(a)      Deferred Deposits
(b)      Unmatured Vested Employer Contributions
(c)      Matured Vested Employer Contributions
(d)      Rollover Contributions
(e)      Unmatured Post-1986 Nondeferred Deposits
(f)      Matured Post-1986 Nondeferred Deposits
(g)      Pre-1987 Nondeferred Deposits

Each loan is secured by an assignment of the Participant's  entire right,  title
and  interest  in and to the  Master  Trust  Fund to the  extent of the loan and
accrued interest thereon. (See Note 1. SUMMARY OF THE PLAN - Loan Provisions.)

Interfund Transfers -- ESOP Fund to Thrift Account

Participants  are  permitted to transfer  all, but not less than all,  shares of
Enterprise  Common  Stock from their ESOP  Funds to their  Thrift  Accounts.  To
effect such  transfers,  the Trustee will sell the shares of  Enterprise  Common
Stock  held in the ESOP Fund and  invest  the  proceeds  in the  Thrift  Account
Investment Funds designated by the Participant.  The cash value of each share of
Enterprise  Common  Stock  transferred  will be equal to the  price per share of
Enterprise Common Stock actually  received by the Trustee.  Any such transfer is
treated as a rollover contribution.

Holding Account

The  Holding  Account is a vehicle to record the  transactions  either  from one
Investment  Fund to another  Investment  Fund or from an  Investment  Fund to an
outside  source.  Daily  balances  which  remain  in  the  Holding  Account  are
temporarily invested in short-term, liquid investments at the Trustee Bank until
disbursement.  Activity within the Holding Account includes inflows and outflows
of cash related to investment Fund transfers,  Deposits, Employer Contributions,
withdrawals, receipts of dividends and interest, expenses incurred in connection
with the administration of the Plan, benefit payments and loan transactions.

Vesting

Employer  Contributions to a Participant's Thrift Account are immediately vested
upon a  Participant's  completion  of five years of service with the Employer or
when a Participant  is eligible for  retirement,  disabled,  laid off or dies. A
Participant  who was formerly a participant in the U.S.  Energy Partners 401 (K)
Plan (which was merged into the Plan in 1996),  will become  vested in the value
of his or her U.S. Energy Partners Employer  Contribution  Sub-account according
to the following schedule:

     Years of Service                        Vested Percentage
     ----------------                        -----------------
     Less than one                                  0%
     One                                           20%
     Two                                           40%
     Three                                         60%
     Four                                          80%
     Five or More                                 100%

All amounts credited to a Participant's ESOP Fund are fully vested.

Penalties Upon Withdrawal

If a Participant withdraws vested Employer  Contributions and/or Deposits before
they have been in the Plan for twenty-four  months,  such  Participant will lose
the matching Employer Contributions on Deposits made during the subsequent three
months.  Distributions to Participants electing to withdraw Nondeferred Deposits
and Employer  Contributions are made as soon as practicable after such elections
are received by the Plan's Record Keeper.  Nondeferred Deposits may be withdrawn
at any time but  certain  penalties  may  apply.  Deferred  Deposits  may not be
withdrawn  during   employment  prior  to  age  59-1/2  except  for  reasons  of
extraordinary  financial  hardship  and  to the  extent  permitted  by  the  IRC
(hardship  withdrawals).  Distributions  to  Participants  of approved  hardship
withdrawals are made as soon as practicable after such approval.

Rights Upon Termination

The  Company  expects and intends to  continue  the Plan  indefinitely,  but has
reserved the right to amend,  suspend or terminate  the Plan at any time. In the
event  of  termination  of the  Plan,  the  net  assets  of the  Plan  would  be
distributed  to the  Participants  based on the  balances  in  their  individual
accounts at the date of termination.





3.   INVESTMENTS

The financial statements of the Plan include the following:

     A.  Thrift Account Investment Funds

          (1)  On March 31,  1998,  the  assets of the  Stable  Value  Fund were
               merged,  for  investment  purposes,  with the  Stable  Value Fund
               assets of the Savings  Plan.  The assets of the Stable Value Fund
               are invested in GICs and similar investment instruments issued by
               insurance   companies  or  other  financial   institutions  which
               contractually  provide for a guarantee of principal  and interest
               for the  respective  contract  periods.  Effective  October 1997,
               PRIMCO  Capital  Management was hired to manage the assets of the
               Stable Value Fund. All contract values  approximate  fair values.
               As of December 31,  1998,  the Plan's  interest in the  following
               GICs was approximately 67%.

              The following Traditional GICs are continuing in effect:

              (i)   Two four and one-half year contracts with  Metropolitan Life
                    Insurance  Company,  expiring  December 31, 1999,  effective
                    interest  rates of 8.12% and 8.17%,  respectively,  contract
                    values of $6,829,806 and $16,123,205, respectively;

              (ii)  A five  year  contract  with the  Principal  Life  Insurance
                    Company,  expiring on December 31, 1999,  effective interest
                    rate of 8.15%, contract value of $17,777,206;

              (iii) A five year contract  with First  Allmerica  Financial  Life
                    Insurance  Company,  formerly  known  as State  Mutual  Life
                    Insurance  Company,  expiring  January  4,  1999,  effective
                    interest rate of 5.66%, contract value of $10,532,028;

              (iv)  Two  five  year  contracts  with  New  York  Life  Insurance
                    Company,  expiring  June 30,  1999,  each with an  effective
                    interest rate of 7.07%,  contract  values of $6,016,969  and
                    $9,485,531, respectively;

              (v)   A five year contract expiring January 4, 1999, with Allstate
                    Life Insurance  Company,  effective  interest rate of 5.65%,
                    contract value of $7,879,645;

              (vi)  A five  year  contract  expiring  December  31,  1999,  with
                    Prudential Life Insurance  Company,  effective interest rate
                    of 8.01%, contract value of $15,630,942; and

              (vii) A five year contract  expiring June 30, 2000,  with AIG Life
                    Insurance   Company,   effective  interest  rate  of  6.14%,
                    contract value of $8,979,549.

              The following Synthetic GICs are continuing in effect:

              (i)   An open-ended  contract  with J.P.  Morgan as the book value
                    wrapper and Pacific  Investment  Management Company managing
                    the underlying  portfolio  providing an effective  crediting
                    rate as of December  31, 1998 of 6.91% and a contract  value
                    of  $63,514,786.  The  crediting  rate for the Synthetic GIC
                    effective January 1, 1999 through March 31, 1999 was 6.91%;

              (ii)  An open-ended  contract with The Chase Manhattan Bank as the
                    book value wrapper and Seix Investment Advisors managing the
                    underlying  portfolio  providing an effective crediting rate
                    as of  December  31,  1998 of 6.48% and a contract  value of
                    $35,249,217. The crediting rate effective March 31, 1999 was
                    6.76%;

              (iii) An open-ended  contract with Allstate Life Insurance Company
                    as the book  value  wrapper  and PRIMCO  Capital  Management
                    managing  the  underlying  portfolio  providing an effective
                    crediting  rate  as of  December  31,  1998 of  5.89%  and a
                    contract value of $57,920,302.  The crediting rate effective
                    March 31, 1999 was 5.96%;

              (iv) An  open-ended  contract  with  State  Street  Bank and Trust
                   Company  as  the  book  value  wrapper  and  PRIMCO   Capital
                   Management  managing the  underlying  portfolio  providing an
                   effective crediting rate as of December 31, 1998 of 5.42% and
                   a contract value of $30,846,390. The crediting rate effective
                   March 31, 1999 was 5.21%;

              (v)  A pooled  separate  account  expiring  May 1,  2007 with John
                   Hancock  Mutual  Life  Insurance  Company  as the book  value
                   wrapper and managing the  underlying  portfolio  providing an
                   effective crediting rate as of December 31, 1998 of 5.18% and
                   a contract value of $8,198,099.  The crediting rate effective
                   March 31, 1999 was 5.28%;

              (vi) Two five year floating rate contracts with Caisse des Depots,
                   expiring November 26, 2002,  effective crediting rate on each
                   contract as of December 31, 1998 of 4.80%, contract values of
                   $4,018,540  and  $2,009,270.  The crediting rate effective on
                   each contract as of March 31, 1999 was 5.29%;

              (vii)Two  five  year  floating  rate  contracts  with  Caisse  des
                   Depots,  expiring December 12, 2002, effective crediting rate
                   on each  contract as of December 31, 1998 of 4.52%,  contract
                   values of  $4,009,701  and  $2,004,851.  The  crediting  rate
                   effective on each  contract  as of March 31,  1999 was 5.32%;
                   and

              (viii)A five year floating-rate contract with Caisse des Depots,
                    expiring  February 3, 2003,  effective  crediting rate as of
                    December 31, 1998 of 4.32%,  contract  value of  $3,020,580.
                    The crediting rate effective March 31, 1999 was 4.73%.

          (2)  The assets of the  Enterprise  Common  Stock Fund are invested in
               Enterprise Common Stock.

          (3)  Effective  September  1997, the assets of the Large Company Stock
               Index  Fund  are  invested  in  the  capital  stock  of  Vanguard
               Institutional Index Fund ("Stock Index Equities Fund"), a no-load
               mutual fund managed by The Vanguard  Group,  Inc. The  prospectus
               for the Stock Index  Equities Fund indicates that such fund seeks
               to  replicate  the  investment  performance  of the  Standard and
               Poor's 500 Composite Stock Price Index.  Prior to September 1997,
               the assets of the Large Company Stock Index Fund were invested in
               the Bankers Trust Institutional  Equity 500 Index Fund managed by
               Bankers Trust Company.

          (4)  The assets of the  Intermediate  Government  Securities  Fund are
               invested  in the  capital  stock  of the  Delaware-Voyageur  U.S.
               Government  Securities Fund, a no-load mutual fund managed by the
               Delaware  Management   Company,   Inc.  The  prospectus  for  the
               Delaware-Voyageur  U.S. Government Securities Fund indicates that
               such fund invests primarily in U.S. Treasury bills,  notes, bonds
               and other obligations issued or unconditionally guaranteed by the
               U.S. Government, or otherwise backed by the full faith and credit
               of the U.S. Government,  and repurchase  agreements fully secured
               by such obligations.

          (5)  The assets of the  International  Stock Fund are  invested in the
               capital  stock of the T. Rowe Price  International  Stock Fund, a
               no-load mutual fund managed by Rowe Price-Fleming  International,
               Inc. The  prospectus  for the T. Rowe Price  International  Stock
               Fund indicates that such fund invests  primarily in common stocks
               of established, non-U.S. companies.

          (6)  The assets of the  Mid/Small  Company  Stock Fund are invested in
               the capital stock of the Putnam Vista Fund, a no-load mutual fund
               managed by Putnam Investment Management,  Inc. The prospectus for
               the  Putnam  Vista  Fund  indicates  that such fund  invests in a
               diversified   portfolio  of  common   stocks  which  may  include
               widely-traded common stocks of larger companies as well as common
               stocks of smaller, less well-known companies.

          (7)  On  March  31,  1998,  the  assets  of the  Conservative  Pre-Mix
               Portfolio  were  merged,  for  investment   purposes,   with  the
               Conservative  Pre-Mix  Portfolio  assets of the Savings Plan. The
               assets of the  Conservative  Pre-Mix  Portfolio  are  invested in
               specific   percentages   within  a  mix  of  five  existing  Plan
               investment   Funds:  40%  Stable  Value  Fund,  20%  Intermediate
               Government  Securities  Fund, 20% Large Company Stock Index Fund,
               10%  International  Stock Fund,  and 10% Mid/Small  Company Stock
               Fund. Every quarter the Trustee re-aligns this portfolio to match
               its conservative (risk and return) investment  strategy of 60% in
               bonds and 40% in stocks.

          (8)  On March 31, 1998, the assets of the Moderate  Pre-Mix  Portfolio
               were merged, for investment  purposes,  with the Moderate Pre-Mix
               Portfolio  assets of the Savings Plan. The assets of the Moderate
               Pre-Mix Portfolio are invested in specific  percentages  within a
               mix of five existing  Plan  investment  Funds:  25% Large Company
               Stock Index Fund, 20% Stable Value Fund, 20% International  Stock
               Fund,  20%  Intermediate  Government  Securities  Fund,  and  15%
               Mid/Small Company Stock Fund. Every quarter the trustee re-aligns
               this portfolio to match its moderate (risk and return) investment
               strategy of 60% in stocks and 40% in bonds.

          (9)  The assets of the  Aggressive  Pre-Mix  Portfolio are invested in
               specific   percentages   within  a  mix  of  four  existing  Plan
               investment  Funds:  30%  Large  Company  Stock  Index  Fund,  25%
               International  Stock Fund, 25% Mid/Small  Company Stock Fund, and
               20%  Intermediate  Government  Securities Fund. Every quarter the
               Trustee  re-aligns this  portfolio to match its aggressive  (risk
               and  return)  investment  strategy  of 80% in  stocks  and 20% in
               bonds.

     B.  ESOP Fund

         Shares of  Enterprise  Common  Stock held as assets of the Plan's  ESOP
         Fund were  transferred  to the Plan in 1988 as a result of the spin-off
         and merger with the Plan of the non-bargaining unit portions of PSE&G's
         former TRASOP and PAYSOP.  No additional  contributions to or transfers
         into the ESOP Fund are presently permitted or were allowed during 1998.



     C.  Participants

                                                          Participants
                                                        As of December 31,
                                                        ------------------

                                                        1998          1997
                                                        ----          ----
         Total Plan Participants                        4,992         4,965

         Participants by Fund
         --------------------

         Stable Value Fund                               3,256        3,471
         Enterprise Common Stock Fund                    4,030        3,900
         Large Company Stock Index Fund                  3,017        2,886
         Intermediate Government Securities Fund           720          677
         International Stock Fund                        1,373        1,473
         Mid/Small Company Stock Fund                    1,695        1,543
         Conservative Pre-Mix Portfolio                    667          570
         Moderate Pre-Mix Portfolio                      1,227        1,138
         Aggressive Pre-Mix Portfolio                    1,499        1,374
         ESOP Fund                                         453          482






4.   INVESTMENT OF THE PLAN AND SAVINGS PLAN IN THE MASTER TRUST

The Plan's  investments  are included in the Master Trust which was  established
for the investment of assets of all of the Company's qualified  retirement plans
including the Plan and the Savings Plan.  The following  tables present the fair
values of and the investment  income  recognized by the  investments of the Plan
and Savings Plan in the Master Trust as of and for the periods  ending  December
31, 1998 and 1997. As of December 31, 1998 and 1997, the Plan's interest in such
assets of the Master Trust were approximately 64% and 65%, respectively.

                                                December 31,
                                                ------------
                                          1998                1997
                                           ----                ----
Investments at fair value:
  Participant Loans                    $ 25,454,147          $23,576,663
  Cash and Cash equivalents              45,231,345           47,743,519
  Common Stock of Public
       Service Enterprise Group         119,349,502           92,087,265
  Mutual Funds                          424,228,419          326,616,013
  Guaranteed Insurance Contracts        310,046,617          279,675,584
                                     --------------      ---------------
                                      $ 924,310,030        $ 769,699,044
                                     ==============      ===============




                                                                           December 31,
                                                                           ------------
                                                                 1998                       1997
                                                                 ----                       ----
                                                                                 
Investment income recognized:
  Net appreciation in fair value of Mutual Funds*            $ 79,392,487              $ 57,823,392
  Net appreciation/(depreciation) in fair value of
       Common Stock of Enterprise                              24,932,427                14,876,883
  Interest from Mutual Funds                                    1,074,445                   864,144
  Interest from Common Stock of Enterprise Funds                  272,697                   319,066
  Interest from Guaranteed Insurance Contracts                 20,481,619                20,956,370
  Dividends from Common Stock of Enterprise                     5,405,541                 5,268,123
                                                            -------------             -------------
                                                            $ 131,559,216             $ 100,107,978
                                                            =============             =============

    * Includes Dividends earned from Mutual Funds.






5.   UNIT VALUE INFORMATION -- THRIFT ACCOUNT INVESTMENT FUNDS

Unit values of the  Investment  Funds are determined at the end of each business
day  (Valuation  Date) by dividing the market value of net assets  available for
benefits  by  the  number  of  units  allocated  to all  Participants  as of the
respective Valuation Date.

New units are allocated to each Participant's  Thrift Account at the end of each
business day by dividing Deposits made by, or on behalf of, such Participant for
such business day and the related Employer Contributions,  if any, together with
repayment  of the  principal  amount  of any  loan to the  Participant's  Thrift
Account, including interest paid thereon, by the unit value determined as of the
end of the Valuation Date. If a Participant makes a transfer between  Investment
Funds, makes a withdrawal, receives a distribution or a loan or makes a rollover
contribution,  the  amount so  transferred,  withdrawn,  distributed,  loaned or
rolled over is also  determined by the unit value of each  Investment Fund as of
the applicable  Valuation  Date for such  transaction.  The unit  information of
investments  by  Investment  Fund as of the last business day of each year is as
follows:




Investment Fund                                      Year          Unit Value (Dollars)           Number of Units
- ---------------                                      ----          --------------------           ---------------

                                                                                            
Stable Value Fund (1)                                1998                 $10.47                     21,347,322
                                                     1997                 $12.92                     16,460,772

Enterprise Common Stock Fund                         1998                 $14.42                      4,233,785
                                                     1997                 $11.55                      4,205,197

Large Company Stock Index Fund                       1998                 $19.93                      6,891,341
                                                     1997                 $15.51                      6,980,963

Intermediate Govt. Securities Fund                   1998                 $12.33                        633,079
                                                     1997                 $11.44                        480,812

International Stock Fund                             1998                 $13.02                      1,460,295
                                                     1997                 $11.24                      1,654,907

Mid/Small Company Stock Fund                         1998                 $14.64                      2,552,597
                                                     1997                 $12.28                      2,391,686

Conservative Pre-Mix Portfolio (1)                   1998                 $10.71                      1,673,915
                                                     1997                 $11.70                      1,149,315

Moderate Pre-Mix Portfolio (1)                       1998                 $10.73                      3,133,105
                                                     1997                 $11.95                      2,312,429

Aggressive Pre-Mix Portfolio                         1998                 $14.64                      2,017,163
                                                     1997                 $12.26                      1,834,583
- --------------------------------------------------

(1)  As a result of the  merger of the  Stable  Value  Funds,  Conservative  and
     Moderate  Pre-Mixed  Portfolios on March 31, 1998 unit values were reset to
     $10.00.




                    NOTES TO FINANCIAL STATEMENTS (CONCLUDED)


ESOP FUND VALUATION

Enterprise  Common Stock share value is determined  by using the closing  market
price on the New York Stock  Exchange as reported in the Wall Street  Journal as
Composite  Transactions.  If a Participant  withdraws shares, the shares are, at
the Participant's  election,  either  distributed to such Participant or sold by
the Trustee and the proceeds,  net of commissions and taxes,  are distributed to
the Participant.

The  ESOP  Fund  information  as of the  last  business  day of each  year is as
follows:

    Year             Price per share               Number of shares
    ----             ---------------               ----------------
    1998                  $40.0000                      151,011
    1997                  $31.6875                      167,002


6.   FEDERAL INCOME TAXES

The Company  believes that the Plan and its related Trust including the portions
of the former TRASOP and PAYSOP applicable to non-bargaining  unit Participants,
which portions were spun-off and merged with the Plan effective January 1, 1988,
are qualified under Sections 401(a) and 501(a) of the IRC and, as such, the Plan
is exempt from taxation on its earnings.  A determination letter to such effect,
dated  April  8,  1998,  was  obtained  from  the  Internal   Revenue   Service.
Participants are not taxed on Deferred  Deposits,  Employer  Contributions or on
the earnings  credited to their Thrift Account Fund, until  distribution of such
amounts from the Plan.

7.   COMPLIANCE WITH ERISA

The Plan is  generally  subject to the  provisions  of Titles I and II of ERISA,
including the provisions with respect to reporting,  disclosure,  participation,
vesting and fiduciary responsibility.  However, it is not subject to the funding
requirements  of Title I and benefits  under the Plan are not  guaranteed by the
Pension Benefit Guarantee Corporation under Title IV of ERISA.




                                   SIGNATURES
                                   ----------





Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
trustees (or other persons who administer the Plan) have duly caused this annual
report to be signed by the undersigned thereunto duly authorized.


                              Public Service Electric and Gas Company
                              Thrift and Tax-Deferred Savings Plan
                              ---------------------------------------
                                           (Name of Plan)



                                   By:  M. PETER MELLETT
                                   --------------------------
                                        M. Peter Mellett
                                        Chairman of Employee
                                        Benefits Committee

Date: June 30, 1999



                                  EXHIBIT INDEX
                                  -------------

Exhibit Number
- --------------

1    Public  Service  Electric and Gas Company Thrift and  Tax-Deferred  Savings
     Plan, amended December 21, 1998.

2    Independent Auditors' Consent.