BBakken SubsurfaceNorth Dakota well index

NDIC file 21746 · API 33-105-02421-00-00

MARY 3-10H

Operated by OASIS PETROLEUM NORTH AMERICA LLC · Williams County, North Dakota

Active (A)Oil and gasSpud 2011

Well facts

Operator
OASIS PETROLEUM NORTH AMERICA LLC
Status
Active (A)
Well type
Oil and gas (OG)
Field
DUBLIN
Spud date
Total depth
19,350 ft
Legal location
LOT1 Sec 3 T157N R100W
Footages
800 ft FNL · 1,020 ft FEL
County
Williams County
NDIC file no.
21746
API no.
33-105-02421-00-00

Location & navigation

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48.45757, -103.58493

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

176 months reported, Jan 2012 to Aug 2026, BAKKEN and CONFIDENTIAL pools.

Cumulative oil174KbblJan ’12 to Aug ’26 · 173 of 176 months known
Peak oil rate273bbl/dApr 2012 · 8,184 bbl in 30 days
Oil, last 12 months1,944bbl-57% against the 12 before
Gas–oil ratio, last 12 months997scf/bblfirst year 617 scf/bbl
Water cut, last 12 months72%first year 47% · 208K bbl water in all
Gas sold, last 12 months83%of gas produced · 43 mcf reported flared
0100200300Oil bbl/d120122014201620182020202220242026

Early time

First reported month
Jan 2012
Months to peak
4 (Apr 2012)
Peak month rate
273 bbl/d on 30 days
First 3 months, oil
—
First 6 months, oil
18,204 bbl (3 of 6 known)
First 12 months, oil
41,480 bbl (9 of 12 known)
First 24 months, oil
70,933 bbl (21 of 24 known)
Share of cumulative in year 1
24%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
1 bbl/d
Latest rate as share of peak
0.5%
Uptime, last 12 months
55% of days
Cumulative gas
174K mcf
Cumulative water
208K bbl
Unknown months
3 of 176 (confidential or not in that month's report)
Pools reported
BAKKEN, CONFIDENTIAL
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
35943583230121,21270%
35440977831111,15569%
33638048530111,13159%
336319543301194962%
17618828615121,06862%
0000———
0000———
1412739517819174%
19312446927764271%
2355721221771%
0000———
26521,1811812,00098%

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.