Credo Petroleum Corp., of Denver, Colorado, has reported that its Board of Directors has elected Marlis E Smith Jr. as the company’s President and Chief Executive Officer, succeeding James T Huffman, who will retire effective 15 January 2010. Mr Smith has been exclusively involved in the oil and gas industry throughout his 25 year business career. He is currently the owner of SmithCo Properties Inc. and a partner in Smith Drummond Holdings.