BBakken SubsurfaceNorth Dakota well index

NDIC file 40071 · API 33-025-04735-00-00

ROSCOE 21-1H

Operated by MARATHON OIL COMPANY · Dunn County, North Dakota

Active (A)Oil and gasSpud 2023

Well facts

Operator
MARATHON OIL COMPANY
Status
Active (A)
Well type
Oil and gas (OG)
Field
KILLDEER
Spud date
Total depth
21,473 ft
Legal location
SESE Sec 35 T146N R95W
Footages
916 ft FSL · 561 ft FEL
County
Dunn County
NDIC file no.
40071
API no.
33-025-04735-00-00

Location & navigation

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47.41803, -102.73934

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

30 months reported, Mar 2024 to Aug 2026, BAKKEN pool.

Cumulative oil247KbblMar ’24 to Aug ’26 · 30 of 30 months known
Peak oil rate670bbl/dMay 2024 · 20,781 bbl in 31 days
Oil, last 12 months39.7Kbbl-62% against the 12 before
Gas–oil ratio, last 12 months1,637scf/bblfirst year 946 scf/bbl
Water cut, last 12 months65%first year 72% · 550K bbl water in all
Gas sold, last 12 months96%of gas produced · 804 mcf reported flared
0250500750Oil bbl/d105Mar ’24Jun ’24Sep ’24Dec ’24Mar ’25Jun ’25Sep ’25Dec ’25Mar ’26Jun ’26

Early time

First reported month
Mar 2024
Months to peak
3 (May 2024)
Peak month rate
670 bbl/d on 31 days
First 3 months, oil
49,709 bbl
First 6 months, oil
102,563 bbl
First 12 months, oil
163,856 bbl
First 24 months, oil
230,959 bbl
Share of cumulative in year 1
66%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
105 bbl/d
Latest rate as share of peak
15.6%
Uptime, last 12 months
81% of days
Cumulative gas
288K mcf
Cumulative water
550K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
5,2377,8309,160301751,49564%
3,5645,0457,768311151,41669%
3,4085,6766,607301141,66566%
4,0576,3597,076311311,56764%
3,7415,2946,765311211,41564%
3,7715,6736,132281351,50462%
3,7075,8147,428311201,56867%
4,3806,9798,030301461,59365%
5,09410,0608,518311641,97563%
2,2825,2673,879171342,30863%
0000———
4199161,09841052,18672%

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.