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New-well oil production per rig
barrels/day
New-well gas production per rig
thousand cubic feet/day
Region November 2021 December 2021 change November 2021 December 2021 change
Anadarko 845 795 (50) 4,540 4,086 (454)
Appalachia 187 187 - 30,133 30,284 151
Bakken 2,152 2,148 (4) 3,013 3,007 (6)
Eagle Ford 2,382 2,383 1 8,557 8,559 2
Haynesville 19 19 - 11,924 12,079 155
Niobrara 1,662 1,629 (33) 4,524 4,434 (90)
Permian 1,218 1,213 (5) 2,245 2,233 (12)
Rig-weighted average 1,143 1,143 - 6,465 6,273 (192)
Oil production
thousand barrels/day
Gas production
million cubic feet/day
Region November 2021 December 2021 change November 2021 December 2021 change
Anadarko 366 368 2 6,203 6,173 (30)
Appalachia 122 124 2 35,601 35,608 7
Bakken 1,137 1,142 5 3,012 3,020 8
Eagle Ford 1,078 1,083 5 5,950 5,981 31
Haynesville 34 34 - 13,778 13,889 111
Niobrara 608 612 4 5,308 5,320 12
Permian 4,886 4,953 67 19,298 19,385 87
Total 8,231 8,316 85 89,150 89,376 226
Drilled but uncompleted wells (DUC)
wells
Region September 2021 October 2021 change
Anadarko 812 799 (13)
Appalachia 557 533 (24)
Bakken 541 512 (29)
Eagle Ford 833 798 (35)
Haynesville 396 389 (7)
Niobrara 375 368 (7)
Permian 1,812 1,705 (107)
Total 5,326 5,104 (222)
NOTE: The Drilling Productivity Report (DPR) rig productivity metric new-well oil/natural gas production per rig can become unstable during periods of rapid decreases or increases in the number of active rigs and well completions. The metric uses a fixed ratio of estimated total production from new wells divided by the region's monthly rig count, lagged by two months. The metric does not represent new-well oil/natural gas production per newly completed well.

The DPR metric legacy oil/natural gas production change can become unstable during periods of rapid decreases or increases in the volume of well production curtailments or shut-ins. This effect has been observed during winter weather freeze-offs, extreme flooding events, and the 2020 global oil demand contraction. The DPR methodology involves applying smoothing techniques to most of the data series because of inherent noise in the data.

September 2021 Supplement: Gas-to-oil ratios in U.S. primary oil-producing regions.
January 2021 Supplement: Base production in North Dakota has fully recovered after a significant reduction.
September 2020 Supplement: With low rig counts, the inventory of drilled but uncompleted (DUC) wells provides short-term reserve for completions of new wells.
August 2020 Supplement: Rig counts fall but new-well production per rig rise as new-well production persists.
March 2020 Supplement: Base production accounts for a material share of total U.S. tight oil production.

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