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Drilling Productivity Report

Release Date:  August 11, 2014  |  Next Release: September 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 August 2014 September 2014 change   August 2014 September 2014 change
Bakken 516 522 6   527 535 8
Eagle Ford 511 519 8   1,307 1,319 12
Haynesville 23 23 -   5,035 5,127 92
Marcellus 30 31 1   7,889 7,952 63
Niobrara 380 388 8   1,696 1,727 31
Permian 162 165 3    315 321 6
Utica* 172 179 7    3,667 3,815 148
Rig-weighted average 296 304 8   1,525 1,528 3
Oil production
thousand barrels/day
Gas production
million cubic feet/day
Region August 2014 September 2014 change   August 2014 September 2014 change
Bakken 1,116 1,136 20   1,325 1,348 23
Eagle Ford 1,479 1,510 31   6,506 6,590 84
Haynesville 54 54 -   6,592 6,581 (11)
Marcellus 50 51 1   15,632 15,884 252
Niobrara 350 356 6   4,448 4,494 46
Permian 1,680 1,718 38    5,645 5,707 66
Utica* 37 40 3    1,270 1,348 78
Total 4,766 4,865 99   41,418 41,952 534


Note: *The Utica Region in eastern Ohio, one of the fastest growing natural gas production areas in the United States, has been added to the Drilling Productivity Report (DPR). Total natural gas production in the Utica Region, which includes production from the Utica and Point Pleasant formations as well as legacy production from conventional reservoirs, has increased from 155 million cubic feet per day (MMcf/d) in January 2012 to an estimated 1.3 billion cubic feet per day (Bcf/d) in September 2014.

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