BBakken SubsurfaceNorth Dakota well index

NDIC file 21524 · API 33-025-01465-00-00

HARTMAN 2-28H

Operated by CONTINENTAL RESOURCES, INC. · Dunn County, North Dakota

Active (A)Oil and gasSpud 2012

Well facts

Operator
CONTINENTAL RESOURCES, INC.
Status
Active (A)
Well type
Oil and gas (OG)
Field
CHIMNEY BUTTE
Spud date
Total depth
20,784 ft
Legal location
NWNE Sec 28 T146N R95W
Footages
190 ft FNL · 2,025 ft FEL
County
Dunn County
NDIC file no.
21524
API no.
33-025-01465-00-00

Location & navigation

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47.44402, -102.78766

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

173 months reported, Apr 2012 to Aug 2026, BAKKEN and CONFIDENTIAL pools.

Cumulative oil360KbblApr ’12 to Aug ’26 · 171 of 173 months known
Peak oil rate513bbl/dJul 2012 · 11,287 bbl in 22 days
Oil, last 12 months6,366bbl-29% against the 12 before
Gas–oil ratio, last 12 months1,278scf/bblfirst year 604 scf/bbl
Water cut, last 12 months60%first year 31% · 190K bbl water in all
Gas sold, last 12 months45%of gas produced · 0 mcf reported flared
0200400600Oil bbl/d252014201620182020202220242026

Early time

First reported month
Apr 2012
Months to peak
5 (Aug 2012)
Peak month rate
513 bbl/d on 22 days
First 3 months, oil
11,579 bbl (1 of 3 known)
First 6 months, oil
44,171 bbl (4 of 6 known)
First 12 months, oil
72,834 bbl (10 of 12 known)
First 24 months, oil
137,613 bbl (22 of 24 known)
Share of cumulative in year 1
20%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
25 bbl/d
Latest rate as share of peak
4.9%
Uptime, last 12 months
90% of days
Cumulative gas
239K mcf
Cumulative water
190K bbl
Unknown months
2 of 173 (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
67781890230231,20857%
67280488431221,19657%
6447501,06830211,16562%
63574986831201,18058%
59968780831191,14757%
55976075828201,36058%
59278982431191,33358%
53168574430181,29058%
43574172031141,70362%
36958360130121,58062%
2237282111,68256%
6317311,37825251,15869%

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.