BBakken SubsurfaceNorth Dakota well index

NDIC file 37157 · API 33-025-03950-00-00

HELSETH 41-16H

Operated by MARATHON OIL COMPANY · Dunn County, North Dakota

Active (A)Oil and gasSpud 2020

Well facts

Operator
MARATHON OIL COMPANY
Status
Active (A)
Well type
Oil and gas (OG)
Field
KILLDEER
Spud date
Total depth
21,220 ft
Legal location
SESE Sec 9 T145N R94W
Footages
532 ft FSL · 644 ft FEL
County
Dunn County
NDIC file no.
37157
API no.
33-025-03950-00-00

Location & navigation

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47.38805, -102.65510

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

58 months reported, Nov 2021 to Aug 2026, BAKKEN pool.

Cumulative oil266KbblNov ’21 to Aug ’26 · 58 of 58 months known
Peak oil rate1,364bbl/dNov 2021 · 35,456 bbl in 26 days
Oil, last 12 months23.8Kbbl+24% against the 12 before
Gas–oil ratio, last 12 months1,799scf/bblfirst year 862 scf/bbl
Water cut, last 12 months58%first year 63% · 470K bbl water in all
Gas sold, last 12 months94%of gas produced · 1,613 mcf reported flared
05001,0001,500Oil bbl/d40Nov ’21May ’22Nov ’22May ’23Nov ’23May ’24Nov ’24May ’25Nov ’25May ’26

Early time

First reported month
Nov 2021
Months to peak
1 (Nov 2021)
Peak month rate
1,364 bbl/d on 26 days
First 3 months, oil
80,368 bbl
First 6 months, oil
131,624 bbl
First 12 months, oil
176,707 bbl
First 24 months, oil
210,315 bbl
Share of cumulative in year 1
67%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
40 bbl/d
Latest rate as share of peak
2.9%
Uptime, last 12 months
85% of days
Cumulative gas
288K mcf
Cumulative water
470K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
1,9593,1843,16630651,62562%
2,1203,6713,12231681,73260%
1,9203,6833,03630641,91861%
4,6508,7423,229311501,88041%
2,9456,2913,53831952,13655%
1,9814,8873,26928712,46762%
2,1643,0133,56431701,39262%
55853092996295062%
1,5111,6252,78525601,07565%
2,1982,5833,30730731,17560%
1,7324,3982,40731562,53958%
802311052402,88857%

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.