Brian S. Hook Elected Chief Financial Officer of Adams Express and Petroleum & Resources

The Board of Directors of The Adams Express Company

and Petroleum & Resources Corporation

elected Brian S. Hook, CFA, CPA as Chief Financial Officer, effective March 20, 2012. Mr. Hook has been Treasurer of the Companies since 2009 and was Assistant Treasurer from September 2008 to 2009. Prior to joining the Companies, Mr. Hook was a Vice President at T. Rowe Price Associates and a Senior Manager in its Investment Treasury Group, where he focused on accounting, reporting, and valuation policies for global investment products with a prominence in investor protection. Prior to that, he was a Business Assurance Manager with Coopers & Lybrand L.L.P. (a predecessor firm of PricewaterhouseCoopers, LLP) serving investment management and private equity clients.