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Drilling Productivity Report

Release Date:  February 9, 2015  |  Next Release: March 9, 2015  |  full report

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Report data (aggregated by region)

DUC data (aggregated by region)



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New-well oil production per rig
barrels/day
New-well gas production per rig
thousand cubic feet/day
Region February 2015 March 2015 change   February 2015 March 2015 change
Bakken 563 575 12   573 582 9
Eagle Ford 651 660 9   1,697 1,711 14
Haynesville 24 24 -   5,744 5,844 100
Marcellus 35 36 1   8,044 8,085 41
Niobrara 425 432 7   1,858 1,881 23
Permian 198 202 4    396 402 6
Utica 217 225 8    4,480 4,603 123
Rig-weighted average 348 352 4   1,766 1,844 78
Oil production
thousand barrels/day
Gas production
million cubic feet/day
Region February 2015 March 2015 change   February 2015 March 2015 change
Bakken 1,303 1,316 13   1,541 1,555 14
Eagle Ford 1,716 1,733 17   7,450 7,536 86
Haynesville 58 58 -   6,972 7,058 86
Marcellus 56 57 1   16,550 16,721 171
Niobrara 395 398 3   4,736 4,759 23
Permian 1,932 1,962 30    6,332 6,385 53
Utica 55 59 4    1,856 1,926 70
Total 5,515 5,583 68   45,437 45,940 503


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