X0303 4 2010-01-15 0 0000216851 PETROLEUM & RESOURCES CORP PEO 0001353074 Prue Nancy J F PETROLEUM & RESOURCES CORPORATION 7 SAINT PAUL STREET BALTIMORE MD 21202 0 1 0 0 Executive Vice President Common Stock 2010-01-15 4 D 0 804 0 D 14220 I Direct and Indirect Common Stock 2010-01-15 4 F 0 460 24.77 D 13760 I Direct and Indirect Of these shares, 8,592 shares are held directly, 4,627 shares are held indirectly by the Issuer's Thrift Plan Trust, and 1,001 shares are held indirectly by the Adams Express Company Thrift Plan Trust. Of these shares, 8,132 shares are held directly, 4,627 shares are held indirectly by the Issuer's Thrift Plan Trust, and 1,001 shares are held indirectly by the Adams Express Company Thrift Plan Trust. Nancy J. F. Prue 2010-01-19