Have you contacted vet offices and low cost neuter/spay clinics? Since he is intact and someone may be keeping him, the finder may go and have him neutered.
Jennifer
http://oklahomacity.craigslist.org/laf/2116111354.html
Lost Dog Basenji
Date: 2010-12-16, 12:34PM CST
Reply to: comm-fansb-2116111354@craigslist.org
His name is Max. He is a Basenji. They do not bark but can hear very well. He is black, white, and tan. He may or may not come to you. Lost in the vicinity of SE 59th Street & Anderson Road. Please call me at 405-642-4771
it's NOT ok to contact this poster with services or other commercial interests
Hurray! Max was found safe and sound.
Yahooo! Oh, love a good story at this time of the year!