BBakken SubsurfaceNorth Dakota well index

NDIC file 39984 · API 33-025-04716-00-00

CALVIN 11-21H

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
MURPHY CREEK
Spud date
Total depth
26,891 ft
Legal location
SWSW Sec 16 T145N R96W
Footages
589 ft FSL · 1,208 ft FWL
County
Dunn County
NDIC file no.
39984
API no.
33-025-04716-00-00

Location & navigation

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47.37365, -102.92421

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

32 months reported, Jan 2024 to Aug 2026, BAKKEN pool.

Cumulative oil339KbblJan ’24 to Aug ’26 · 32 of 32 months known
Peak oil rate1,276bbl/dFeb 2024 · 34,457 bbl in 27 days
Oil, last 12 months74.7Kbbl-37% against the 12 before
Gas–oil ratio, last 12 months1,202scf/bblfirst year 870 scf/bbl
Water cut, last 12 months66%first year 69% · 769K bbl water in all
Gas sold, last 12 months99%of gas produced · 388 mcf reported flared
05001,0001,500Oil bbl/d202Jan ’24Apr ’24Jul ’24Oct ’24Jan ’25Apr ’25Jul ’25Oct ’25Jan ’26Apr ’26Jul ’26

Early time

First reported month
Jan 2024
Months to peak
2 (Feb 2024)
Peak month rate
1,276 bbl/d on 27 days
First 3 months, oil
63,308 bbl
First 6 months, oil
107,258 bbl
First 12 months, oil
206,963 bbl
First 24 months, oil
297,805 bbl
Share of cumulative in year 1
61%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
202 bbl/d
Latest rate as share of peak
15.8%
Uptime, last 12 months
88% of days
Cumulative gas
333K mcf
Cumulative water
769K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
4,5874,34013,2951825594674%
8,9869,19020,206312901,02369%
10,73313,86317,379303581,29262%
9,16811,45115,911312961,24963%
7,4229,79014,977312391,31967%
7,1238,87411,893282541,24663%
6,2997,51911,377312031,19464%
5,6346,29110,222301881,11764%
4,5845,0119,080271701,09366%
5,7227,8999,980301911,38064%
2,6133,3326,294241091,27571%
1,8142,1832,93892021,20362%

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.