BBakken SubsurfaceNorth Dakota well index

NDIC file 19868 · API 33-105-02025-00-00

A. TUFTO 18-19 1-H

Operated by DEVON ENERGY WILLISTON, L.L.C. · Williams County, North Dakota

Active (A)Oil and gasSpud 2010

Well facts

Operator
DEVON ENERGY WILLISTON, L.L.C.
Status
Active (A)
Well type
Oil and gas (OG)
Field
COW CREEK
Spud date
Total depth
20,700 ft
Legal location
SESW Sec 7 T155N R100W
Footages
250 ft FSL · 1,406 ft FWL
County
Williams County
NDIC file no.
19868
API no.
33-105-02025-00-00

Location & navigation

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48.25632, -103.59829

Published surface location (NAD83). A horizontal well's lateral can run up to three miles from this point.

See it in 3D

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Production

184 months reported, May 2011 to Aug 2026, BAKKEN pool.

Cumulative oil453KbblMay ’11 to Aug ’26 · 184 of 184 months known
Peak oil rate1,554bbl/dMay 2011 · 9,326 bbl in 6 days
Oil, last 12 months8,949bbl-17% against the 12 before
Gas–oil ratio, last 12 months1,585scf/bblfirst year 924 scf/bbl
Water cut, last 12 months57%first year 46% · 503K bbl water in all
Gas sold, last 12 months90%of gas produced · 150 mcf reported flared
01,0002,000Oil bbl/d2320122014201620182020202220242026

Early time

First reported month
May 2011
Months to peak
3 (Jul 2011)
Peak month rate
1,554 bbl/d on 6 days
First 3 months, oil
44,775 bbl
First 6 months, oil
77,013 bbl
First 12 months, oil
128,396 bbl
First 24 months, oil
185,053 bbl
Share of cumulative in year 1
28%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
23 bbl/d
Latest rate as share of peak
1.5%
Uptime, last 12 months
98% of days
Cumulative gas
529K mcf
Cumulative water
503K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
8531,5601,05629291,82955%
8711,5751,10231281,80856%
8051,36299129281,69255%
7921,2351,02930261,55957%
7421,1511,02131241,55158%
49880960522231,62455%
7371,1361,00831241,54158%
8601,2171,05730291,41555%
65998292731211,49058%
6821,04998530231,53859%
7341,04295531241,42057%
7161,0651,08031231,48760%

As first reported to NDIC in each month's report (NDIC Monthly Production Reports, Jan 2003 to Aug 2026). Operators amend past months later and the published reports are not updated, so a month can differ from the current record. A blank or missing month is unknown, not zero, and a cumulative over such months is a lower bound; two pools reported in one month are summed. Rates per producing day divide the month's volume by the days reported, so a month reported without producing days has no rate. Gas–oil ratio is gas produced over oil produced; water cut is water over oil plus water. Months from Jan 2003 to Apr 2015 are read from the Division's PDF reports, which print no flared gas and list a well in a unitized pool only inside its unit's total.

Spacing units

Units whose published footprint holds at least 660 ft of this well's surveyed lateral. Allowances are facts extracted from signed NDIC orders, machine-extracted and not human-reviewed.

Nearby wells

Closest published well heads within 3 miles; wells on one pad share a location.

Other published attributes (1)
symbolA-OG

DMR shapefile columns not shown above, unchanged.