BBakken SubsurfaceNorth Dakota well index

NDIC file 23212 · API 33-025-01779-00-00

HARTMAN 4-28H

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

Abandoned (AB)Oil and gasSpud 2012

Well facts

Operator
CONTINENTAL RESOURCES, INC.
Status
Abandoned (AB)
Well type
Oil and gas (OG)
Field
CHIMNEY BUTTE
Spud date
Total depth
20,948 ft
Legal location
NENW Sec 28 T146N R95W
Footages
210 ft FNL · 1,663 ft FWL
County
Dunn County
NDIC file no.
23212
API no.
33-025-01779-00-00

Location & navigation

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47.44396, -102.79417

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

166 months reported, Nov 2012 to Aug 2026, BAKKEN and CONFIDENTIAL pools.

Cumulative oil188KbblNov ’12 to Aug ’26 · 165 of 166 months known
Peak oil rate921bbl/dDec 2012 · 28,566 bbl in 31 days
Oil, last 12 months0bbl-100% against the 12 before
Gas–oil ratio, last 12 months—scf/bblfirst year 717 scf/bbl
Water cut, last 12 months—%first year 38% · 217K bbl water in all
Gas sold, last 12 months—%of gas produced · 0 mcf reported flared
05001,000Oil bbl/d12014201620182020202220242026

Early time

First reported month
Nov 2012
Months to peak
2 (Dec 2012)
Peak month rate
921 bbl/d on 31 days
First 3 months, oil
43,724 bbl (2 of 3 known)
First 6 months, oil
70,355 bbl (5 of 6 known)
First 12 months, oil
104,145 bbl (11 of 12 known)
First 24 months, oil
133,454 bbl (23 of 24 known)
Share of cumulative in year 1
55%

Today

Last reported month
Aug 2026
Last month with oil
Apr 2025
Latest oil rate
1 bbl/d
Latest rate as share of peak
0.1%
Uptime, last 12 months
0% of days
Cumulative gas
220K mcf
Cumulative water
217K bbl
Unknown months
1 of 166 (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
0000———
0000———
0000———
0000———
0000———
0000———
0000———
0000———
0000———
0000———
0000———
0000———

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)
symbolAB-OG

DMR shapefile columns not shown above, unchanged.