Jefferies Randall & Dewey was financing advisory firm that provided transaction related services to the oil and gas industry. The firm served buying, selling, or merging upstream oil and gas assets or companies. The firm specialized in project management, transaction advisory, petroleum advise, engineering, geo-science, technical analysis, commercial analysis, production operations, research, information technology, capital solutions, and data room administration. The firm was formerly known as Randall & Dewey, Inc, and was established in 1989. Jefferies Randall & Dewey was acquired by Jefferies in 2005.