BBakken SubsurfaceNorth Dakota well index

NDIC file 21238 · API 33-105-02308-00-00

HELSTAD 158-99-28B-33-1H

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

Active (A)Oil and gasSpud 2012

Well facts

Operator
ENERPLUS RESOURCES USA CORPORATION
Status
Active (A)
Well type
Oil and gas (OG)
Field
ELLISVILLE
Spud date
Total depth
19,855 ft
Legal location
NENW Sec 28 T158N R99W
Footages
250 ft FNL · 1,400 ft FWL
County
Williams County
NDIC file no.
21238
API no.
33-105-02308-00-00

Location & navigation

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48.48804, -103.48809

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

172 months reported, May 2012 to Aug 2026, BAKKEN pool.

Cumulative oil288KbblMay ’12 to Aug ’26 · 172 of 172 months known
Peak oil rate402bbl/dMay 2012 · 10,453 bbl in 26 days
Oil, last 12 months6,373bbl-42% against the 12 before
Gas–oil ratio, last 12 months766scf/bblfirst year 588 scf/bbl
Water cut, last 12 months53%first year 59% · 343K bbl water in all
Gas sold, last 12 months52%of gas produced · 1,791 mcf reported flared
0200400600Oil bbl/d212014201620182020202220242026

Early time

First reported month
May 2012
Months to peak
1 (May 2012)
Peak month rate
402 bbl/d on 26 days
First 3 months, oil
28,095 bbl
First 6 months, oil
44,590 bbl
First 12 months, oil
67,686 bbl
First 24 months, oil
105,358 bbl
Share of cumulative in year 1
23%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
21 bbl/d
Latest rate as share of peak
5.2%
Uptime, last 12 months
79% of days
Cumulative gas
286K mcf
Cumulative water
343K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
657550820302283756%
785618904312578754%
612576799302094157%
796642848312680752%
670620827312292555%
713537741282575351%
19824632018111,24262%
0000———
123112,00075%
642312709292248652%
652360778282355254%
647419539312164845%

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.