SANTA CLARA, Calif.--(BUSINESS WIRE)--XenoPort, Inc. (Nasdaq:XNPT) announced today its financial results for the fourth quarter and year ended December 31, 2006. Revenues for the quarter were $3.1 million, compared to $0.4 million for the same period in 2005. Net loss for the fourth quarter was $18.6 million, compared to a net loss of $11.5 million for the same period in 2005. At December 31, 2006, XenoPort had cash and cash equivalents and short-term investments of $118.9 million.