Here are some mostly good reports on UCG (even from National Geographic and BBC) which should help sentiment. Also South African sources sounding upbeat.
http://news.nationalgeographic.com/news/energy/2014/04/140408-new-energy-frontier-underground-coal-gasification/
http://www.bbc.com/news/business-26921145
http://wyomingpublicmedia.org/post/underground-coal-gasification-potential-energy-frontier