It contains averages of rigs running in Louisiana divided into regions: north, south inland land, south inland water, state offshore and OCS. The main source of this data is Baker-Hughes drilling statistic.
[pdf] The drilling rigs used in shale development are usually "top-drive" rigs that are capable of "walking" short distances (on the order of 20 feet) in order to drill multiple wells on one well pad without the need to dis-assemble and re-assemble the rig between each well.
[pdf] *Production per well is much lower in the U.S. than in other countries due to subsidies for stripper wells that produce very little oil. Those subsidies are intended. A drill rig is the primary equipment used for drilling a natural gas well. It consists of a derrick, drawworks, and a rotary system. The derrick provides support and houses the drilling equipment. The drawworks control the drilling depth by raising and lowering the drilling assembly.
[pdf] 
