The performance of cobalt tungsten carbide material was investigated for CH 4 /CO 2 reforming. The catalyst was found to convert to a very stable, very active, form when heated in CH 4 /CO 2 at 850 o C and 5 atm.. Even after 90 hours on stream, CH 4 and CO 2 rates of 1.3 and 1.25 mmol/min/g respectively are obtained, with CO yields of 76 % and H 2 /CO ratio close to unity. XRD patterns suggest a phase transformation to WC+Co+C. SEM images suggest formation of encapsulated carbon and whisker carbon. I am grateful to Jean Cropley, member of my research committee, for his valuable suggestions and recommendations in this research study. The financial support from US Department of Energy under cooperative agreement contract DE-FC26-99FT40540 with Consortium for Fossil Fuel Liquefaction Science is gratefully acknowledged.