Petroleum Research Fund (1997) "Mineral chemistry controls of microbial ecology during intrinsic biodegradation of petroleum" $60,000 for 2 years, May 1, 1998 to September 1, 2000.
National Science Foundation (1999) "Microbial weathering of feldspars: Aggressive release of limiting nutrients" $144,000 for 2 years, August 1, 1999 to July 31, 2001.