BALTIMORE, Feb. 6 /PRNewswire-FirstCall/ -- Petroleum & Resources Corporation (NYSE:PEO) provides this update on portfolio holdings as of December 31, 2007. The Corporation will mail its 2007 Annual Report on or about February 19, 2008. TOP TEN HOLDINGS The ten largest portfolio holdings were: Company % of Net Assets Exxon Mobil 11.9 Chevron 6.8 Schlumberger 5.6 ConocoPhillips 5.0 Noble Corp. 3.5 Weatherford International 3.5 Total S.A. ADR 3.3 Occidental Petroleum 3.2 Valero Energy 3.0 Devon Energy 3.0 48.8% SECTOR WEIGHTINGS The portfolio weightings for the major sectors that the Fund invests in were: Integrated 38.7% Services 22.6% Exploration and Production 15.9% Utilities 13.3% Basic Materials and Other 6.4% Short-Term Investments 3.4% Petroleum & Resources is a Baltimore-based closed-end investment company. It is traded on the New York Stock Exchange under the symbol PEO. For further information please contact: Lawrence L. Hooper, Jr., Vice President, General Counsel and Secretary 410-752-5900 or 800-638-2479 E-mail: Website: http://www.adamsexpress.com/ For your convenience, all press releases are posted to our website. If you would like to receive future press releases by fax or e-mail, please let us know. DATASOURCE: Petroleum & Resources Corporation CONTACT: Lawrence L. Hooper, Jr., Vice President, General Counsel and Secretary for Petroleum & Resources Corporation, +1-410-752-5900 or 1-800-638-2479, Web site: http://www.adamsexpress.com/

Copyright