UNITED STATES
            SECURITIES & EXCHANGE COMMISSION
                 Washington, D.C. 20549
                           Form 13F
                     Form 13F COVER PAGE
 Report for the Calendar Year or Quarter Ended           March 31, 2004

 Check here if Amendment [       ];    Amendment Number:

 This amendment (Check only one.) :          [     ] is a restatement
 [     ] adds new holdings entries.

 Institutional Investment Manager Filing this Report:
 Name:          Petroleum & Resources Corporation
 Address:       7 St. Paul Street, Suite 1140
                Baltimore, MD  21202

 Form 13F File Number:      28-293


 The institutional investment manager filing this report and the person
 by whom it is signed hereby represent that the person signing the
 report is authorized to submit it, that all information contained
 herein is true, correct and complete, and that it is understood that
 all required items, statements, schedules, lists,and tables, are
 considered integral parts of this form.



 Person Signing this Report on Behalf of Reporting Manager:



 Name:        Christine M. Sloan
 Title:       Assistant Treasurer
 Phone:       (410) 752-5900

 Signature, Place, and Date of Signing:

 Christine M. Sloan            Baltimore, MD            April 20, 2004

   [Signature]                 [City, State]               [Date]



 Report Type (Check only one.):

 [X]   13F HOLDINGS REPORT.  (Check here if all holdings of this reporting
 manager are reported in this report.)

 [   ]   13F NOTICE.  (Check here if no holdings reported
 are in this report, and all holdings are reported by other

 [   ]   13F COMBINATION REPORT.  (Check here if a portion of the holdings
 for this reporting manager are reported in this report and a portion are
 reported by other reporting manager (s).)


 List of Other Managers Reporting for this Manager:
 Form 13F File Number Name
 28

 [Repeat as necessary.]



 Form 13F SUMMARY PAGE
 Report Summary:

 Number of Other Included Managers:           0

 Form 13F Information Table Entry Total:      53

 Form 13F Information Table Value Total:      $      479,135
                                                        (in thousands)

 List of Other Included Managers:

 Provide a numbered list of the name (s) and Form 13F file number(s)
 of all institutional investment managers with respect to which this
 report is filed, other than the manager filing this report.




 [If there are no entries in this list, state "NONE" and omit the column
 headings and
 list entries.]


 No.       Form 13-F File No.     Name
           28-

 [Repeat as necessary.]

 
 
 

        COLUMN 1          COLUMN 2   COLUMN 3  COLUMN 4       COLUMN 5     COLUMN 6COLUMN 7     COLUMN 8
    NAME OF ISSUER    TITLE OF CLASS   CUSIP  VALUE IN  SHARES/PRN SH/ PUT/ INVSTM  OTHER   VOTING AUTHORITY
                                                000's    AMOUNT    PRN CALLDISCRETNMANAGERS
                                                                                            SOLE SHARED NONE
                                                                >C>       

   WILLIAMS COMPANIES,      COM      969457100  1,914     200,000  SH       SOLE           200,000
 AGL RESOURCES INC.         COM      001204106  7,255     250,000  SH       SOLE           250,000
 AIR PRODUCTS & CHEMICA     COM      009158106  6,265     125,000  SH       SOLE           125,000
 ALBEMARLE CORP.            COM      012653101  5,800     200,000  SH       SOLE           200,000
 AMERADA HESS CORP          COM      023551104  8,160     125,000  SH       SOLE           125,000
 APACHE CORP.               COM      037411105  8,202     190,000  SH       SOLE           190,000
 AQUA AMERICA, INC.         COM      03836W103  7,154     330,000  SH       SOLE           330,000
 ARCH COAL INC.             COM      039380100  7,848     250,000  SH       SOLE           250,000
 BAKER HUGHES, INC..        COM      057224107  4,742     130,000  SH       SOLE           130,000
 BJ SERVICES CO.            COM      055482103  16,010    370,000  SH       SOLE           370,000
 BOISE CASCADE ACES 7.5    PFD CV    097383855  2,593      51,000  SH       SOLE           51,000
 BOISE CASCADE CORP.        COM      097383103  7,103     205,000  SH       SOLE           205,000
 BP P.L.C.              SPONSORED ADR055622104  30,208    590,000  SH       SOLE           590,000
 BURLINGTON RESOURCES I     COM      122014103  8,488     133,400  SH       SOLE           133,400
 CHEVRONTEXACO CORP.        COM      166764100  25,456    290,000  SH       SOLE           290,000
 CONOCOPHILLIPS             COM      20825C104  19,896    285,000  SH       SOLE           285,000
 DEVON ENERGY CORP.         COM      25179M103  11,556    198,720  SH       SOLE           198,720
 DUKE ENERGY 8.25% DUE     PFD CV    264399585  2,368     160,000  SH       SOLE           160,000
 DUKE ENERGY CORP.          COM      264399106  2,599     115,000  SH       SOLE           115,000
 ENERGEN CORP.              COM      29265N108  8,250     200,000  SH       SOLE           200,000
 EOG RESOURCES INC.         COM      26875P101  9,178     200,000  SH       SOLE           200,000
 EQUITABLE RESOURCES IN     COM      294549100  11,105    250,000  SH       SOLE           250,000
 EXXON MOBIL CORP.          COM      30231G102  43,670   1,050,000 SH       SOLE          1,050,000
 GENERAL ELECTRIC CO.       COM      369604103  13,881    454,800  SH       SOLE           454,800
 GLOBALSANTAFE CORP.        COM      G3930E101  5,554     200,000  SH       SOLE           200,000
 GRANT PRIDECO INC          COM      38821G101  4,774     308,000  SH       SOLE           308,000
 INGERSOLL-RAND CO. LTD     CL A     G4776G101  5,277      78,000  SH       SOLE           78,000
 KERR-MCGEE CORP.           COM      492386107  9,123     177,153  SH       SOLE           177,153
 KEYSPAN CORP.              COM      49337W100  8,408     220,000  SH       SOLE           220,000
 KINDER MORGAN INC          COM      49455P101  4,872      77,300  SH       SOLE           77,300
 MDU RESOURCES GROUP, I     COM      552690109  7,047     300,000  SH       SOLE           300,000
 MURPHY OIL CORP.           COM      626717102  4,093      65,000  SH       SOLE           65,000
 NABORS INDUSTRIES, LTD     COM      G6359F103  5,719     125,000  SH       SOLE           125,000
 NATIONAL FUEL GAS CO.      COM      636180101  4,920     200,000  SH       SOLE           200,000
 NEW JERSEY RESOURCES C     COM      646025106  10,490    277,500  SH       SOLE           277,500
 NOBLE CORP                 COM      G65422100  5,187     135,000  SH       SOLE           135,000
 NOBLE ENERGY INC.          COM      655044105  6,641     141,000  SH       SOLE           141,000
 OCCIDENTAL PETROLEUM C     COM      674599105  9,210     200,000  SH       SOLE           200,000
 PIONEER NATURAL RESOUR     COM      723787107  9,561     296,000  SH       SOLE           296,000
 QUESTAR CORP               COM      748356102  7,288     200,000  SH       SOLE           200,000
 ROHM & HAAS CO.            COM      775371107  7,968     200,000  SH       SOLE           200,000
 ROYAL DUTCH PETROLEUM, Y REG EUR .56780257804  19,508    410,000  SH       SOLE           410,000
 SCHLUMBERGER LTD           COM      806857108  17,878    280,000  SH       SOLE           280,000
 SHELL TRANSPORT & TRAD DR NY SHS NEW822703609  5,388     135,000  SH       SOLE           135,000
 SMURFIT-STONE CONTAINE     COM      832727101  3,477     197,675  SH       SOLE           197,675
 STONE ENERGY CORP.         COM      861642106  5,159     104,300  SH       SOLE           104,300
 TECO ENERGY, INC           COM      872375100  2,926     200,000  SH       SOLE           200,000
 TEMPLE-INLAND, INC.        COM      879868107  6,651     105,000  SH       SOLE           105,000
 TOTAL S.A.             SPONSORED ADR89151E109  12,880    140,000  SH       SOLE           140,000
 UNOCAL CAPITAL TRUST      PFD CV    91528T207  3,768      72,540  SH       SOLE           72,540
 WEATHERFORD INT'L. LTD     COM      G95089101  8,616     205,000  SH       SOLE           205,000
 WILLIAMS FELINE PACS D    PFD CV    969457886  1,529     120,000  SH       SOLE           120,000
 XTO ENERGY                 COM      98385X106  5,525     218,900  SH       SOLE           218,900
                                                479,135