BBakken SubsurfaceNorth Dakota well index

NDIC file 40290 · API 33-025-04804-00-00

GRAYSON 41-13TFH

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
21,190 ft
Legal location
NENE Sec 13 T145N R95W
Footages
451 ft FNL · 1,121 ft FEL
County
Dunn County
NDIC file no.
40290
API no.
33-025-04804-00-00

Location & navigation

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47.38533, -102.72044

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

29 months reported, Apr 2024 to Aug 2026, BAKKEN pool.

Cumulative oil176KbblApr ’24 to Aug ’26 · 29 of 29 months known
Peak oil rate728bbl/dApr 2024 · 13,832 bbl in 19 days
Oil, last 12 months28.6Kbbl-56% against the 12 before
Gas–oil ratio, last 12 months1,417scf/bblfirst year 991 scf/bbl
Water cut, last 12 months62%first year 67% · 347K bbl water in all
Gas sold, last 12 months98%of gas produced · 417 mcf reported flared
0250500750Oil bbl/d89Apr ’24Jul ’24Oct ’24Jan ’25Apr ’25Jul ’25Oct ’25Jan ’26Apr ’26Jul ’26

Early time

First reported month
Apr 2024
Months to peak
3 (Jun 2024)
Peak month rate
728 bbl/d on 19 days
First 3 months, oil
53,295 bbl
First 6 months, oil
93,283 bbl
First 12 months, oil
130,620 bbl
First 24 months, oil
164,092 bbl
Share of cumulative in year 1
74%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
89 bbl/d
Latest rate as share of peak
12.2%
Uptime, last 12 months
90% of days
Cumulative gas
193K mcf
Cumulative water
347K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
3,9165,6366,779301311,43963%
2,8664,4274,66929991,54562%
3,2575,4166,016301091,66365%
2,5133,9684,43929871,57964%
1,9932,8403,88031641,42566%
1,9883,0383,52328711,52864%
3976136639441,54463%
1,6982,3882,90924711,40663%
2,6332,9404,05131851,11761%
2,4062,8313,43430801,17759%
2,1532,5533,07926831,18659%
2,7493,8233,97231891,39159%

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.