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Drilling Productivity Report

Release Date:  March 9, 2015  |  Next Release: April 13, 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 March 2015 April 2015 change   March 2015 April 2015 change
Bakken 577 592 15   584 595 11
Eagle Ford 660 680 20   1,712 1,732 20
Haynesville 24 24 -   5,844 5,955 111
Marcellus 36 36 -   8,083 8,130 47
Niobrara 432 455 23   1,881 1,906 25
Permian 202 240 38    402 459 57
Utica 225 234 9    4,603 4,738 135
Rig-weighted average 352 374 22   1,844 2,025 181
Oil production
thousand barrels/day
Gas production
million cubic feet/day
Region March 2015 April 2015 change   March 2015 April 2015 change
Bakken 1,328 1,320 (8)   1,557 1,549 (8)
Eagle Ford 1,733 1,723 (10)   7,518 7,532 14
Haynesville 57 57 -   7,055 7,135 80
Marcellus 57 57 -   16,712 16,787 75
Niobrara 418 413 (5)   4,767 4,752 (15)
Permian 1,961 1,982 21    6,403 6,428 25
Utica 59 62 3    1,920 1,970 50
Total 5,613 5,614 1   45,932 46,153 221


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