BBakken SubsurfaceNorth Dakota well index

NDIC file 41025 · API 33-053-10335-00-00

HELLING 16-21 5H

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

Active (A)Oil and gasSpud 2024

Well facts

Operator
DEVON ENERGY WILLISTON, L.L.C.
Status
Active (A)
Well type
Oil and gas (OG)
Field
RAGGED BUTTE
Spud date
Total depth
21,368 ft
Legal location
NWNW Sec 15 T151N R101W
Footages
349 ft FNL · 425 ft FWL
County
McKenzie County
NDIC file no.
41025
API no.
33-053-10335-00-00

Location & navigation

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47.90526, -103.60328

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

15 months reported, Jun 2025 to Aug 2026, BAKKEN and CONFIDENTIAL pools.

Cumulative oil92.5KbblJun ’25 to Aug ’26 · 11 of 15 months known
Peak oil rate695bbl/dOct 2025 · 19,450 bbl in 28 days
Oil, last 12 months92.5Kbbl11 of 12 months known
Gas–oil ratio, last 12 months2,698scf/bblfirst year 2,451 scf/bbl
Water cut, last 12 months66%first year 66% · 181K bbl water in all
Gas sold, last 12 months99%of gas produced · 2,848 mcf reported flared
0250500750Oil bbl/d161Jun ’25Aug ’25Oct ’25Dec ’25Feb ’26Apr ’26Jun ’26Aug ’26

Early time

First reported month
Jun 2025
Months to peak
5 (Oct 2025)
Peak month rate
695 bbl/d on 28 days
First 3 months, oil
—
First 6 months, oil
26,968 bbl (2 of 6 known)
First 12 months, oil
72,854 bbl (8 of 12 known)
Share of cumulative in year 1
79%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
161 bbl/d
Latest rate as share of peak
23.2%
Uptime, last 12 months
89% of days
Cumulative gas
250K mcf
Cumulative water
181K bbl
Unknown months
4 of 15 (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
———————
19,45036,11525,299286951,85757%
7,51810,68232,166282681,42181%
5,3629,87211,916182981,84169%
7,05714,82616,884242942,10171%
12,00030,35317,962284292,52960%
9,53035,67316,862313073,74364%
7,00926,16412,934302343,73365%
4,92814,9108,729202463,02664%
8,67726,17613,918302893,01762%
6,00322,93111,242311943,82065%
4,99321,97312,634311614,40172%

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.