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Drilling Productivity Report

Release Date:  July 13, 2015  |  Next Release: August 10, 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 July 2015 August 2015 change   July 2015 August 2015 change
Bakken 665 691 26   679 695 16
Eagle Ford 741 766 25   2,006 2,049 43
Haynesville 28 29 1   5,953 5,973 20
Marcellus 58 59 1   8,282 8,350 68
Niobrara 502 516 14   1,914 1,956 42
Permian 315 327 12    570 582 12
Utica 262 271 9    6,875 7,061 186
Rig-weighted average 422 432 10   2,421 2,425 4
Oil production
thousand barrels/day
Gas production
million cubic feet/day
Region July 2015 August 2015 change   July 2015 August 2015 change
Bakken 1,204 1,182 (22)   1,502 1,478 (24)
Eagle Ford 1,593 1,538 (55)   7,094 6,971 (123)
Haynesville 59 59 -   6,717 6,688 (29)
Marcellus 71 72 1   16,528 16,487 (41)
Niobrara 415 395 (20)   4,558 4,507 (51)
Permian 2,041 2,046 5    6,365 6,351 (14)
Utica 65 65 -    2,642 2,664 22
Total 5,448 5,357 (91)   45,406 45,146 (260)


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