BBakken SubsurfaceNorth Dakota well index

NDIC file 39501 · API 33-105-05940-00-00

Brown Bear 157-99-1-12-4H

Operated by ENERPLUS RESOURCES USA CORPORATION · Williams County, North Dakota

Active (A)Oil and gasSpud 2023

Well facts

Operator
ENERPLUS RESOURCES USA CORPORATION
Status
Active (A)
Well type
Oil and gas (OG)
Field
LONE TREE LAKE
Spud date
Total depth
20,791 ft
Legal location
LOT4 Sec 1 T157N R99W
Footages
535 ft FNL · 959 ft FWL
County
Williams County
NDIC file no.
39501
API no.
33-105-05940-00-00

Location & navigation

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48.45816, -103.42463

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

39 months reported, Jun 2023 to Aug 2026, BAKKEN and CONFIDENTIAL pools.

Cumulative oil178KbblJun ’23 to Aug ’26 · 34 of 39 months known
Peak oil rate674bbl/dDec 2023 · 20,884 bbl in 31 days
Oil, last 12 months26.5Kbbl-50% against the 12 before
Gas–oil ratio, last 12 months2,302scf/bblfirst year 1,502 scf/bbl
Water cut, last 12 months73%first year 65% · 380K bbl water in all
Gas sold, last 12 months94%of gas produced · 3,334 mcf reported flared
0250500750Oil bbl/d72Jun ’23Dec ’23Jun ’24Dec ’24Jun ’25Dec ’25Jun ’26

Early time

First reported month
Jun 2023
Months to peak
7 (Dec 2023)
Peak month rate
674 bbl/d on 31 days
First 3 months, oil
—
First 6 months, oil
19,505 bbl (1 of 6 known)
First 12 months, oil
81,188 bbl (7 of 12 known)
First 24 months, oil
145,091 bbl (19 of 24 known)
Share of cumulative in year 1
46%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
72 bbl/d
Latest rate as share of peak
10.6%
Uptime, last 12 months
93% of days
Cumulative gas
348K mcf
Cumulative water
380K bbl
Unknown months
5 of 39 (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
2,4756,3166,66130822,55273%
2,4675,4226,29531802,19872%
2,3664,2896,72227881,81374%
9122,1413,19613702,34878%
1,9084,0445,98327712,11976%
2,1584,1986,64028771,94575%
2,7555,6228,05931892,04175%
2,5825,0106,49830861,94072%
3,0386,1808,06531982,03473%
3,2397,8966,370301082,43866%
4133,8011,07430149,20372%
2,2196,1647,01231722,77876%

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.