BBakken SubsurfaceNorth Dakota well index

NDIC file 19829 · API 33-105-02016-00-00

O'NEILL 17-20 1-H

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

Active (A)Oil and gasSpud 2011

Well facts

Operator
DEVON ENERGY WILLISTON, L.L.C.
Status
Active (A)
Well type
Oil and gas (OG)
Field
TODD
Spud date
Total depth
20,855 ft
Legal location
SWSE Sec 8 T154N R101W
Footages
250 ft FSL · 2,375 ft FEL
County
Williams County
NDIC file no.
19829
API no.
33-105-02016-00-00

Location & navigation

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48.16942, -103.70022

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 and CONFIDENTIAL pools.

Cumulative oil514KbblMay ’11 to Aug ’26 · 183 of 184 months known
Peak oil rate698bbl/dJun 2011 · 17,439 bbl in 25 days
Oil, last 12 months11Kbbl-42% against the 12 before
Gas–oil ratio, last 12 months5,523scf/bblfirst year 651 scf/bbl
Water cut, last 12 months86%first year 43% · 1.16M bbl water in all
Gas sold, last 12 months94%of gas produced · 1,718 mcf reported flared
0250500750Oil bbl/d3220122014201620182020202220242026

Early time

First reported month
May 2011
Months to peak
2 (Jun 2011)
Peak month rate
698 bbl/d on 25 days
First 3 months, oil
33,290 bbl (2 of 3 known)
First 6 months, oil
61,962 bbl (5 of 6 known)
First 12 months, oil
112,660 bbl (11 of 12 known)
First 24 months, oil
166,838 bbl (23 of 24 known)
Share of cumulative in year 1
22%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
32 bbl/d
Latest rate as share of peak
4.6%
Uptime, last 12 months
97% of days
Cumulative gas
762K mcf
Cumulative water
1.16M bbl
Unknown months
1 of 184 (confidential or not in that month's report)
Pools reported
BAKKEN, CONFIDENTIAL
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
9334,8295,90428335,17686%
8415,0786,02730286,03888%
1,1665,5846,39630394,78985%
1,1976,0416,37831395,04784%
1,2546,6956,21731405,33983%
5692,9103,46320285,11486%
6334,4684,92831207,05889%
6725,2526,69530227,81591%
9135,0305,67631295,50986%
9444,7655,55230315,04885%
8815,0556,62531285,73888%
9925,0135,53931325,05385%

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.