Found this link on tigerdroppings.com. Makes a good read. Check out the paragraph on number of rigs too.

"OKLAHOMA CITY & HOUSTON--(BUSINESS WIRE)--Chesapeake Energy Corporation (NYSE:CHK - News) and Plains Exploration & Production Company (NYSE:PXP - News) (“PXP”) today announced they have entered into a Haynesville Shale joint venture (the “JV”) in North Louisiana and East Texas."

http://biz.yahoo.com/bw/080701/20080701006524.html?.v=1