Gee, there are lots of articles on it. Here's one.

http://beforeitsnews.com/alternative/2014/04/militarized-siege-of-bundy-ranch-is-all-about-oil-fracking-deals-2935768.html

Another states the BLM wants payment for twenty years of illegal grazing. They knew about it for 20 years and they let the turtles die until now? The heartless bastards!