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, 2012

  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:    The Adams Express Company
  Address: 7 St. Paul Street, Suite 1140
           Baltimore, MD  21202

  Form 13F File Number:28-597


  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:

  /s/ Christine M. Sloan       Baltimore, MD          April 20, 2012

   [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 reporting
        manager(s).)

  [ ]   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).)




                          Form 13F SUMMARY PAGE


  Report Summary:

  Number of Other Included Managers:     0

  Form 13F Information Table Entry Total: 99

  Form 13F Information Table Value Total: $1,105,555
                                          (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.



  NONE

  
  
  


          COLUMN 1             COLUMN 2      COLUMN 3     COLUMN 4        COLUMN 5        COLUMN 6   COLUMN 7      COLUMN 8
      NAME OF ISSUER            TITLE         CUSIP        VALUE      SHRS OR   SH/  PUT/  INVSTMT   OTHER    VOTING AUTHORITY
                               OF CLASS                  (x $1000)    PRN AMT   PRN  CALL  DISCRETN  MANAGER  SOLE    SHARED  NONE
                                                                                            

 ACE LTD.                        SHS          H0023R105    12,078      165,000    SH         SOLE             165,000
 ADTRAN, INC.                    COM          00738A106     3,188      102,200    SH         SOLE             102,200
 AFFILIATED MANAGERS             COM          008252108     2,124       19,000    SH         SOLE              19,000
 AIR PRODUCTS & CHEMICALS        COM          009158106     2,754       30,000    SH         SOLE              30,000
 APPLE INC.                      COM          037833100    47,958       80,000    SH         SOLE              80,000
 AT&T CORP.                      COM          00206R102    14,834      475,000    SH         SOLE             475,000
 AUTOMATIC DATA PROCESSING INC.  COM          053015103    11,038      200,000    SH         SOLE             200,000
 AVON PRODUCTS, INC.             COM          054303102     6,962      359,600    SH         SOLE             359,600
 AXIS CAPITAL HOLDINGS LTD.      SHS          G0692U109     6,302      190,000    SH         SOLE             190,000
 BANK OF AMERICA CORP.           COM          060505104     8,900      930,000    SH         SOLE             930,000
 BANK OF NEW YORK MELLON CORP.   COM          064058100     9,743      403,775    SH         SOLE             403,775
 BORGWARNER INC.                 COM          099724106    11,386      135,000    SH         SOLE             135,000
 BRISTOL-MYERS SQUIBB CO.        COM          110122108     5,368      159,061    SH         SOLE             159,061
 BROADCOM CORP.                  CL A         111320107     3,930      100,000    SH         SOLE             100,000
 BUNGE LTD.                      COM          G16962105     8,897      130,000    SH         SOLE             130,000
 CAPITAL ONE FINANCIAL CORP.     COM          14040H105    13,378      240,000    SH         SOLE             240,000
 CATERPILLAR INC.                COM          149123101    17,043      160,000    SH         SOLE             160,000
 CELGENE CORP.                   COM          151020104     9,302      120,000    SH         SOLE             120,000
 CENTURYLINK INC.                COM          156700106    13,914      360,000    SH         SOLE             360,000
 CF INDUSTRIES HOLDINGS, INC.    COM          125269100     7,038       38,531    SH         SOLE              38,531
 CHEVRON CORP.                   COM          166764100    17,802      166,000    SH         SOLE             166,000
 CISCO SYSTEMS, INC.             COM          17275R102    17,978      850,000    SH         SOLE             850,000
 CLIFFS NATURAL RESOURCES INC.   COM          18683K101     5,610       81,000    SH         SOLE              81,000
 COCA-COLA CO.                   COM          191216100    14,802      200,000    SH         SOLE             200,000
 COGNIZANT TECHNOLOGY SOLUTIONS  CL A         192446102    11,543      150,000    SH         SOLE             150,000
 COLUMBIA SPORTSWEAR CO.         COM          198516106     9,490      200,000    SH         SOLE             200,000
 CONSOL ENERGY INC.              COM          20854P109     2,513       73,700    SH         SOLE              73,700
 CVS/CAREMARK CORP.              COM          126650100    13,216      295,000    SH         SOLE             295,000
 DIAGEO PLC ADR                  SPON ADR NEW 25243Q205       192        2,000    SH         SOLE               2,000
 DIGITAL REALTY TRUST INC.       COM          253868103     1,110       15,000    SH         SOLE              15,000
 DOW CHEMICAL CO.                COM          260543103    12,470      360,000    SH         SOLE             360,000
 EMERSON ELECTRIC CO.            COM          291011104    11,480      220,000    SH         SOLE             220,000
 EXPRESS SCRIPTS INC.            COM          302182100    11,920      220,000    SH         SOLE             220,000
 EXXON MOBIL CORP.               COM          30231G102     9,974      115,000    SH         SOLE             115,000
 F5 NETWORKS INC.                COM          315616102     6,073       45,000    SH         SOLE              45,000
 FEDEX CORP.                     COM          31428X106    10,575      115,000    SH         SOLE             115,000
 FREEPORT-MCMORAN COPPER & GOLD  COM          35671D857     7,825      205,700    SH         SOLE             205,700
 GENERAL ELECTRIC CO.            COM          369604103    10,838      540,000    SH         SOLE             540,000
 GILEAD SCIENCES INC.            COM          375558103    12,213      250,000    SH         SOLE             250,000
 GOODRICH CORP.                  COM          382388106     3,763       30,000    SH         SOLE              30,000
 GOOGLE INC.                     CL A         38259P508    14,364       22,400    SH         SOLE              22,400
 HALLIBURTON CO.                 COM          406216101     4,978      150,000    SH         SOLE             150,000
 HEWLETT-PACKARD CO.             COM          428236103     5,958      250,000    SH         SOLE             250,000
 HONEYWELL INT'L INC.            COM          438516106    15,568      255,000    SH         SOLE             255,000
 INTEL CORP.                     COM          458140100    22,207      790,000    SH         SOLE             790,000
 JOHNSON & JOHNSON               COM          478160104    16,820      255,000    SH         SOLE             255,000
 JPMORGAN CHASE & CO.            COM          46625H100    27,588      600,000    SH         SOLE             600,000
 KANSAS CITY SOUTHERN            COM NEW      485170302     3,943       55,000    SH         SOLE              55,000
 LIFE TECHNOLOGIES CORP.         COM          53217V109     9,764      200,000    SH         SOLE             200,000
 LOWE'S COMPANIES, INC.          COM          548661107    18,828      600,000    SH         SOLE             600,000
 MARRIOTT INTERNATIONAL INC.     CL A         571903202    11,355      300,000    SH         SOLE             300,000
 MASCO CORP.                     COM          574599106     9,693      725,000    SH         SOLE             725,000
 MCDONALD'S CORP.                COM          580135101    23,544      240,000    SH         SOLE             240,000
 MCKESSON CORP.                  COM          58155Q103     1,826       20,800    SH         SOLE              20,800
 MDU RESOURCES GROUP, INC.       COM          552690109     6,954      310,600    SH         SOLE             310,600
 MEDTRONIC, INC.                 COM          585055106    13,717      350,000    SH         SOLE             350,000
 METLIFE INC.                    COM          59156R108    10,645      285,000    SH         SOLE             285,000
 MICROSOFT CORP.                 COM          594918104    22,575      700,000    SH         SOLE             700,000
 MORGAN STANLEY                  COM NEW      617446448     2,357      120,000    SH         SOLE             120,000
 NATIONAL OILWELL VARCO, INC.    COM          637071101     7,947      100,000    SH         SOLE             100,000
 NETAPP, INC.                    COM          64110D104     5,596      125,000    SH         SOLE             125,000
 NEWELL RUBBERMAID INC.          COM          651229106     7,124      400,000    SH         SOLE             400,000
 NISOURCE INC.                   COM          65473P105     1,826       75,000    SH         SOLE              75,000
 NORFOLK SOUTHERN CORP.          COM          655844108     6,583      100,000    SH         SOLE             100,000
 NORTHEAST UTILITIES             COM          664397106     7,164      193,000    SH         SOLE             193,000
 OLD DOMINION FREIGHT LINE INC.  COM          679580100     1,668       35,000    SH         SOLE              35,000
 ORACLE CORP.                    COM          68389X105    22,162      760,000    SH         SOLE             760,000
 PEABODY ENERGY CORP.            COM          704549104     1,189       41,060    SH         SOLE              41,060
 PEPSICO, INC.                   COM          713448108    19,905      300,000    SH         SOLE             300,000
 PETROLEUM & RESOURCES CORP.     COM          716549100    56,856    2,186,774    SH         SOLE           2,186,774
 PFIZER INC                      COM          717081103    18,128      800,000    SH         SOLE             800,000
 PHILIP MORRIS INTERNATIONAL INC.COM          718172109    13,291      150,000    SH         SOLE             150,000
 PNC FINANCIAL SERVICES GROUP,   COM          693475105    15,155      235,000    SH         SOLE             235,000
 POTASH CORP OF SASKATCHEWAN INC.COM          73755L107     5,944      130,100    SH         SOLE             130,100
 PRAXAIR, INC.                   COM          74005P104     7,738       67,500    SH         SOLE              67,500
 PROCTER & GAMBLE CO.            COM          742718109    18,819      280,000    SH         SOLE             280,000
 PRUDENTIAL FINANCIAL, INC.      COM          744320102     9,509      150,000    SH         SOLE             150,000
 QUALCOMM INC.                   COM          747525103    20,406      300,000    SH         SOLE             300,000
 RYLAND GROUP INC.               COM          783764103    11,828      613,500    SH         SOLE             613,500
 SAFEWAY INC.                    COM NEW      786514208     6,871      340,000    SH         SOLE             340,000
 SCHLUMBERGER LTD                COM          806857108     8,392      120,000    SH         SOLE             120,000
 SEADRILL LTD.                   SHS          G7945E105     3,755      100,100    SH         SOLE             100,100
 SENOMYX, INC.                   COM          81724Q107     3,519    1,284,400    SH         SOLE           1,284,400
 SOUTH JERSEY INDUSTRIES INC.    COM          838518108     5,004      100,000    SH         SOLE             100,000
 SPECTRA ENERGY CORP.            COM          847560109    12,802      405,780    SH         SOLE             405,780
 SPIRIT AEROSYSTEMS HOLDINGS,INC.COM CL A     848574109    12,230      500,000    SH         SOLE             500,000
 T. ROWE PRICE GROUP INC.        COM          74144T108     9,795      150,000    SH         SOLE             150,000
 TARGET CORP.                    COM          87612E106    18,646      320,000    SH         SOLE             320,000
 TECK RESOURCES LTD              CL B         878742204     3,388       95,000    SH         SOLE              95,000
 TEREX CORP.                     COM          880779103       450       20,000    SH         SOLE              20,000
 TEVA PHARMACEUTICAL INDUSTRIES  ADR          881624209     9,913      220,000    SH         SOLE             220,000
 UNILEVER PLC ADR                SPON ADR NEW 904767704    15,203      460,000    SH         SOLE             460,000
 UNITED TECHNOLOGIES CORP.       COM          913017109     8,294      100,000    SH         SOLE             100,000
 UNITEDHEALTH GROUP INC.         COM          91324P102    13,409      227,500    SH         SOLE             227,500
 VERIZON COMMUNICATIONS          COM          92343V104     8,793      230,000    SH         SOLE             230,000
 WALT DISNEY CO.                 COM          254687106    21,014      480,000    SH         SOLE             480,000
 WELLS FARGO & CO.               COM          949746101    22,362      655,000    SH         SOLE             655,000
 WISCONSIN ENERGY CORP.          COM          976657106     5,277      150,000    SH         SOLE             150,000
 ZIMMER HOLDINGS, INC.           COM          98956P102     7,392      115,000    SH         SOLE             115,000
                                                        1,105,555