BBakken SubsurfaceNorth Dakota well index

NDIC file 17530 · API 33-025-00811-00-00

HARTMAN 1-28H

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

Active (A)Oil and gasSpud 2009

Well facts

Operator
CONTINENTAL RESOURCES, INC.
Status
Active (A)
Well type
Oil and gas (OG)
Field
CHIMNEY BUTTE
Spud date
Total depth
20,570 ft
Legal location
NENE Sec 28 T146N R95W
Footages
160 ft FNL · 1,195 ft FEL
County
Dunn County
NDIC file no.
17530
API no.
33-025-00811-00-00

Location & navigation

Navigate with Google MapsDriving directions to the well headOpen in Google MapsSatellite view of the padOpen in Apple Maps

47.44411, -102.78431

Published surface location (NAD83). A horizontal well's lateral can run up to three miles from this point.

See it in 3D

Open in the regional 3D viewerSurveyed well path, operator and production; Bakken-system horizontals onlyBakken Subsurface 3DBasin-wide production playback

Production

202 months reported, Nov 2009 to Aug 2026, BAKKEN and CONFIDENTIAL pools.

Cumulative oil361KbblNov ’09 to Aug ’26 · 199 of 202 months known
Peak oil rate227bbl/dFeb 2010 · 6,365 bbl in 28 days
Oil, last 12 months886bbl-90% against the 12 before
Gas–oil ratio, last 12 months1,360scf/bblfirst year 609 scf/bbl
Water cut, last 12 months84%first year 29% · 326K bbl water in all
Gas sold, last 12 months41%of gas produced · 10 mcf reported flared
0100200300Oil bbl/d16201020122014201620182020202220242026

Early time

First reported month
Nov 2009
Months to peak
4 (Feb 2010)
Peak month rate
227 bbl/d on 28 days
First 3 months, oil
—
First 6 months, oil
17,727 bbl (3 of 6 known)
First 12 months, oil
48,965 bbl (9 of 12 known)
First 24 months, oil
96,696 bbl (21 of 24 known)
Share of cumulative in year 1
14%

Today

Last reported month
Aug 2026
Last month with oil
Jun 2026
Latest oil rate
16 bbl/d
Latest rate as share of peak
7.0%
Uptime, last 12 months
16% of days
Cumulative gas
299K mcf
Cumulative water
326K bbl
Unknown months
3 of 202 (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
18930461211171,60876%
0000———
0000———
0000———
0000———
0000———
0000———
20271,3062101,35098%
3284021,43122151,22681%
3494721,29522161,35279%
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)
symbolA-OG

DMR shapefile columns not shown above, unchanged.