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Drilling Productivity Report

Release Date:  November 10, 2014  |  Next Release: December 8, 2014  |  full report

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New-well oil production per rig
barrels/day
New-well gas production per rig
thousand cubic feet/day
Region November 2014 December 2014 change   November 2014 December 2014 change
Bakken 536 543 7   550 559 9
Eagle Ford 541 550 9   1,430 1,444 14
Haynesville 24 24 -   5,500 5,592 92
Marcellus 32 33 1   7,938 7,976 38
Niobrara 400 407 7   1,786 1,815 29
Permian 176 179 3    374 380 6
Utica 194 201 7    4,148 4,246 98
Rig-weighted average 315 322 7   1,633 1,651 18
Oil production
thousand barrels/day
Gas production
million cubic feet/day
Region November 2014 December 2014 change   November 2014 December 2014 change
Bakken 1,191 1,219 28   1,473 1,503 30
Eagle Ford 1,615 1,654 39   7,183 7,299 116
Haynesville 57 57 -   6,789 6,849 60
Marcellus 53 54 1   15,885 16,099 214
Niobrara 365 374 9   4,582 4,649 67
Permian 1,807 1,851 44    5,975 6,057 82
Utica 44 48 4    1,581 1,667 86
Total 5,132 5,257 125   43,468 44,123 655


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 may produce both oil and gas; more than half of the wells produce both.

While shale resources and production are found in many U.S. regions, at this time EIA is focusing on the seven most prolific areas, which are located in the Lower 48 states. These seven regions accounted for 95% of domestic oil production growth and all domestic natural gas production growth during 2011-13.

key tight oil and shale gas regions