BBakken SubsurfaceNorth Dakota well index

NDIC file 40708 · API 33-025-04880-00-00

SIMMONS 31-27H

Operated by MARATHON OIL COMPANY · Dunn County, North Dakota

Active (A)Oil and gasSpud 2024

Well facts

Operator
MARATHON OIL COMPANY
Status
Active (A)
Well type
Oil and gas (OG)
Field
BAILEY
Spud date
Total depth
21,879 ft
Legal location
SESE Sec 21 T146N R93W
Footages
598 ft FSL · 622 ft FEL
County
Dunn County
NDIC file no.
40708
API no.
33-025-04880-00-00

Location & navigation

Navigate with Google MapsDriving directions to the well headOpen in Google MapsSatellite view of the padOpen in Apple Maps

47.44598, -102.52690

Published surface location (NAD83). A horizontal well's lateral can run up to three miles from this point.

See it in 3D

Open in the regional 3D viewerSurveyed well path, operator and production; Bakken-system horizontals onlyBakken Subsurface 3DBasin-wide production playback

Production

21 months reported, Dec 2024 to Aug 2026, BAKKEN pool.

Cumulative oil227KbblDec ’24 to Aug ’26 · 21 of 21 months known
Peak oil rate1,233bbl/dJan 2025 · 36,998 bbl in 30 days
Oil, last 12 months71.3Kbbl12 of 12 months known
Gas–oil ratio, last 12 months761scf/bblfirst year 682 scf/bbl
Water cut, last 12 months55%first year 56% · 289K bbl water in all
Gas sold, last 12 months98%of gas produced · 446 mcf reported flared
05001,0001,500Oil bbl/d145Dec ’24Feb ’25Apr ’25Jun ’25Aug ’25Oct ’25Dec ’25Feb ’26Apr ’26Jun ’26Aug ’26

Early time

First reported month
Dec 2024
Months to peak
2 (Jan 2025)
Peak month rate
1,233 bbl/d on 30 days
First 3 months, oil
65,822 bbl
First 6 months, oil
122,459 bbl
First 12 months, oil
178,775 bbl
Share of cumulative in year 1
79%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
145 bbl/d
Latest rate as share of peak
11.8%
Uptime, last 12 months
96% of days
Cumulative gas
158K mcf
Cumulative water
289K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
7,8526,7509,5893026286055%
7,4425,6918,4962925776553%
7,2735,3669,5103024273857%
6,6874,7219,6083121670659%
3,5602,8425,3351918779860%
6,6935,3308,3192823979655%
7,0145,1117,8583122672953%
5,2023,9055,7743017375153%
5,3633,9146,5042918573055%
5,0993,9316,5533017077156%
4,5953,3205,4013114872354%
4,5013,3445,1133114574353%

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.