BBakken SubsurfaceNorth Dakota well index

NDIC file 26065 · API 33-105-03142-00-00

ARLEY 21X-18A

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

Active (A)Oil and gasSpud 2014

Well facts

Operator
CONTINENTAL RESOURCES, INC.
Status
Active (A)
Well type
Oil and gas (OG)
Field
GRINNELL
Spud date
Total depth
20,437 ft
Legal location
NENW Sec 18 T154N R96W
Footages
230 ft FNL · 2,155 ft FWL
County
Williams County
NDIC file no.
26065
API no.
33-105-03142-00-00

Location & navigation

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48.16789, -103.07835

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

140 months reported, Jan 2015 to Aug 2026, BAKKEN pool.

Cumulative oil396KbblJan ’15 to Aug ’26 · 140 of 140 months known
Peak oil rate1,652bbl/dFeb 2015 · 6,610 bbl in 4 days
Oil, last 12 months2,529bbl-70% against the 12 before
Gas–oil ratio, last 12 months10,704scf/bblfirst year 2,371 scf/bbl
Water cut, last 12 months51%first year 30% · 325K bbl water in all
Gas sold, last 12 months98%of gas produced · 476 mcf reported flared
01,0002,000Oil bbl/d23201620182020202220242026

Early time

First reported month
Jan 2015
Months to peak
20 (Aug 2016)
Peak month rate
1,652 bbl/d on 4 days
First 3 months, oil
16,438 bbl
First 6 months, oil
67,260 bbl
First 12 months, oil
118,502 bbl
First 24 months, oil
214,641 bbl
Share of cumulative in year 1
30%

Today

Last reported month
Aug 2026
Last month with oil
Dec 2025
Latest oil rate
23 bbl/d
Latest rate as share of peak
1.4%
Uptime, last 12 months
33% of days
Cumulative gas
1.47M mcf
Cumulative water
325K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
5865,50663530209,39652%
5837,133541311912,23548%
6467,699643302211,91850%
7146,73284131239,42954%
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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.