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Drilling Productivity Report

Release Date:  December 8, 2014  |  Next Release: January 12, 2015  |  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 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
Oil production
thousand barrels/day
Gas production
million cubic feet/day
Region December 2014 January 2015 change   December 2014 January 2015 change
Bakken 1,224 1,251 27   1,506 1,537 31
Eagle Ford 1,655 1,685 30   7,325 7,432 107
Haynesville 57 57 -   6,845 6,902 57
Marcellus 54 55 1   16,099 16,312 213
Niobrara 375 382 8   4,650 4,698 48
Permian 1,824 1,870 46    6,015 6,099 84
Utica 48 52 4    1,668 1,754 86
Total 5,237 5,352 116   44,108 44,734 626


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