X0304 4/A 2011-12-31 2012-01-04 0 0000216851 PETROLEUM & RESOURCES CORP PEO 0001423744 Dale Kenneth James 7 ST. PAUL STREET BALTIMORE MD 21202 1 0 0 0 Common Stock 2011-12-31 4 J 0 104 0 A 2679 D Common Stock 2012-01-03 4 A 0 94 25.07 A 2773 D Of these shares, 80 shares were acquired in exempt transactions as a result of dividend reinvestment. An additional 24 shares accrued as dividend equivalents on deferred stock units (shares received in lieu of director retainer fees). The 24 dividend equivalents were not reported in the original filing. The Issuer's stock traded in a range of $20.84-31.47 during 2011. In the original filing, shares held at the end of the fiscal year were underreported by 363 shares which represent shares accumulated as deferred retainers in 2011. Represents deferred stock units received in lieu of director retainer fees at the election of the reporting person. Each deferred stock unit represents the right to receive one share of common stock. Kenneth J. Dale 2012-01-20