BBakken SubsurfaceNorth Dakota well index

NDIC file 35263 · API 33-105-04907-00-00

SEFOLOSHA FEDERAL 9-23H

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

Active (A)Oil and gasSpud 2019

Well facts

Operator
CONTINENTAL RESOURCES, INC.
Status
Active (A)
Well type
Oil and gas (OG)
Field
EPPING
Spud date
Total depth
21,578 ft
Legal location
SWSE Sec 23 T155N R99W
Footages
350 ft FSL · 1,632 ft FEL
County
Williams County
NDIC file no.
35263
API no.
33-105-04907-00-00

Location & navigation

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

48.22780, -103.37356

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

78 months reported, Mar 2020 to Aug 2026, BAKKEN pool.

Cumulative oil265KbblMar ’20 to Aug ’26 · 78 of 78 months known
Peak oil rate1,338bbl/dSep 2020 · 40,148 bbl in 30 days
Oil, last 12 months7,803bbl-18% against the 12 before
Gas–oil ratio, last 12 months21,317scf/bblfirst year 1,979 scf/bbl
Water cut, last 12 months85%first year 53% · 523K bbl water in all
Gas sold, last 12 months94%of gas produced · 5,294 mcf reported flared
05001,0001,500Oil bbl/d12202120222023202420252026

Early time

First reported month
Mar 2020
Months to peak
7 (Sep 2020)
Peak month rate
1,338 bbl/d on 30 days
First 3 months, oil
277 bbl
First 6 months, oil
18,775 bbl
First 12 months, oil
148,065 bbl
First 24 months, oil
204,612 bbl
Share of cumulative in year 1
56%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
12 bbl/d
Latest rate as share of peak
0.9%
Uptime, last 12 months
100% of days
Cumulative gas
1.24M mcf
Cumulative water
523K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
96913,1374,196303213,55781%
87815,3144,316312817,44283%
75115,3173,745302520,39583%
76215,8973,962312520,86284%
68415,9583,753312223,33085%
60313,1843,487282221,86485%
63515,4003,658312024,25285%
56513,4733,532301923,84686%
55513,1003,567311823,60487%
51312,7823,340301724,91687%
53012,6633,514311723,89287%
35810,1132,925311228,24989%

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.