That's according to a report by the Philadelphia Inquirer: "Marcellus Shale exploration companies are drilling bigger wells in less time at less cost, and they are producing more natural gas than ever in Pennsylvania. *** Despite a reduction in the number of drill rigs operating in Pennsylvania in the last two years because of the low price of natural gas, each rig is accomplishing much more."
Read it all (e.g., "Seneca says improvements in the last year alone saved about $525,000 per well in Tract 100.").