New-well oil production per rig barrels/day New-well gas production per rig thousand cubic feet/day Region December 2014 January 2015 change December 2014 January 2015 change Bakken 543 550 7 558 567 9 Eagle Ford 550 558 8 1,444 1,454 10 Haynesville 24 24 – 5,591 5,686 95 Marcellus 33 34 1 7,962 8,002 40 Niobrara 407 415 8 1,812 1,837 25 Permian 180 185 5 380 385 5 Utica 201 209 8 4,246 4,344 98 Rig-weighted average 323 326 3 1,650 1,660 10 The Drilling Productivity Report uses recent data on the total number of drilling rigs in operation along with estimates of drilling productivity and estimated changes in production from existing oil and natural gas wells to provide estimated changes in oil and natural gas production for seven key regions. EIA’s approach does not distinguish between oil-directed rigs and gas-directed rigs because once a well is completed it […]