UNITED STATES SECURITIES & EXCHANGE COMMISSION Washington, D.C. 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended June 30, 2007 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: 28-596 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 July 31, 2007 [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: 47 Form 13F Information Table Value Total: $ 858,067 (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 AGL RESOURCES INC. COM 001204106 6,882 170,000 SH SOLE 170,000 AIR PRODUCTS & CHEMICA COM 009158106 9,242 115,000 SH SOLE 115,000 APACHE CORP. COM 037411105 12,907 158,200 SH SOLE 158,200 AQUA AMERICA, INC. COM 03836W103 6,320 281,000 SH SOLE 281,000 BAKER HUGHES, INC.. COM 057224107 17,247 205,000 SH SOLE 205,000 BJ SERVICES CO. COM 055482103 6,826 240,000 SH SOLE 240,000 BRONCO DRILLING CO INC COM 112211107 3,938 240,000 SH SOLE 240,000 CHEVRON CORP. COM 166764100 54,756 650,000 SH SOLE 650,000 CONOCOPHILLIPS COM 20825C104 43,716 556,891 SH SOLE 556,891 DEVON ENERGY CORP. COM 25179M103 25,836 330,000 SH SOLE 330,000 DUKE ENERGY CORP. COM 26441C105 3,983 217,624 SH SOLE 217,624 DUPONT EI DE NEMOURS COM 263534109 8,007 157,500 SH SOLE 157,500 ENERGEN CORP. COM 29265N108 21,976 400,000 SH SOLE 400,000 ENSCO INTERNATIONAL, I COM 26874Q100 12,760 209,150 SH SOLE 209,150 EOG RESOURCES INC. COM 26875P101 22,649 310,000 SH SOLE 310,000 EQUITABLE RESOURCES IN COM 294549100 22,302 450,000 SH SOLE 450,000 EXXON MOBIL CORP. COM 30231G102 104,431 1,245,000 SH SOLE 1,245,000 FLORIDA ROCK INDUSTRIE COM 341140101 7,087 105,000 SH SOLE 105,000 FOREST OIL CORP COM 346091705 1,564 37,000 SH SOLE 37,000 GENERAL ELECTRIC CO. COM 369604103 17,410 454,800 SH SOLE 454,800 GLOBALSANTAFE CORP. COM G3930E101 20,952 290,000 SH SOLE 290,000 GRANT PRIDECO INC COM 38821G101 16,580 308,000 SH SOLE 308,000 HERCULES OFFSHORE, INC COM 427093109 8,095 250,000 SH SOLE 250,000 HESS CORPORATION COM 42809H107 11,497 195,000 SH SOLE 195,000 MARATHON OIL CO. COM 565849106 14,390 240,000 SH SOLE 240,000 MDU RESOURCES GROUP, I COM 552690109 10,515 375,000 SH SOLE 375,000 MURPHY OIL CORP. COM 626717102 12,869 216,500 SH SOLE 216,500 NABORS INDUSTRIES, LTD COM G6359F103 17,358 520,000 SH SOLE 520,000 NATIONAL FUEL GAS CO. COM 636180101 8,662 200,000 SH SOLE 200,000 NEW JERSEY RESOURCES C COM 646025106 10,204 200,000 SH SOLE 200,000 NEWFIELD EXPLORATION C COM 651290108 7,971 175,000 SH SOLE 175,000 NOBLE CORP COM G65422100 19,504 200,000 SH SOLE 200,000 NOBLE ENERGY INC. COM 655044105 26,828 430,000 SH SOLE 430,000 OCCIDENTAL PETROLEUM C COM 674599105 23,152 400,000 SH SOLE 400,000 QUESTAR CORP COM 748356102 19,026 360,000 SH SOLE 360,000 ROHM & HAAS CO. COM 775371107 10,936 200,000 SH SOLE 200,000 ROYAL DUTCH SHELL PLC-SPONSORED ADRA780259206 21,518 265,000 SH SOLE 265,000 SCHLUMBERGER LTD COM 806857108 47,566 560,000 SH SOLE 560,000 SEMCO ENERGY INC. COM 78412D109 5,208 670,300 SH SOLE 670,300 SPECTRA ENERGY CORP. COM 847560109 2,825 108,812 SH SOLE 108,812 SUNCOR ENERGY COM 867229106 8,992 100,000 SH SOLE 100,000 TODCO COM 88889T107 9,442 200,000 SH SOLE 200,000 TOTAL S.A. SPONSORED ADR89151E109 17,816 220,000 SH SOLE 220,000 VALERO ENERGY CORP. COM 91913Y100 31,390 425,000 SH SOLE 425,000 WEATHERFORD INT'L. LTD COM G95089101 27,264 493,560 SH SOLE 493,560 WILLIAMS COMPANIES, IN COM 969457100 14,229 450,000 SH SOLE 450,000 XTO ENERGY COM 98385X106 23,439 390,000 SH SOLE 390,000 858,067