For more than 20 years, Daniel Oh has achieved a diverse array of experience in management and business. Prior to Renewable Energy Group, Inc., Mr. Oh was a Vice President and member of senior management at ABG, Inc., an agribusiness consulting firm responsible for management consulting and market research practice.
Mr. Oh's post-graduate career began in the U.S. Army where Mr. Oh served as an infantry officer for 11 years and held the rank of Major; service included combat, overseas and stateside assignments.
Currently, he serves as a Director on the Ames Chamber of Commerce and the West Point Society of Des Moines, as well as the Treasurer for the Ames Economic Development Commission.
Mr. Stone has served as Renewable Energy Group’s Chief Financial Officer since August of 2009. Prior to joining Renewable Energy Group, Inc., Mr. Stone served over 17 years in public accounting and consulting in various roles, including as a Director at PricewaterhouseCoopers in Chicago and Cincinnati and as a Manager at Arthur Andersen in Chicago. He holds an M.B.A. in Finance from the University of Chicago, Graduate School of Business and a B.B.A. in Accounting from the University of Iowa. He is also a Certified Public Accountant.
Mr. Stone has served on Executive Board of the Iowa Biodiesel Board since 2010 and is the current chair, on the Governing Board of the National Biodiesel Board and on the School of Management Advisory Committee for the University Of Iowa Tippie School Of Business.
For more than 15 years, Natalie Merrill has worked within the finance and accounting sectors. Ms. Merrill leads REG's Corporate Finance and Investment Banking activities with responsibility for financing strategy and mergers and acquisitions. Additionally, she oversees the company's operations control team and operations center. Ms. Merrill assists in the evaluation of business development opportunities and strategic investments and coordinates internal financial analysis on behalf of other REG business units.