BBakken SubsurfaceNorth Dakota well index

NDIC file 32293 · API 33-105-04221-00-00

MARK 4-9F #8TFH

Operated by DEVON ENERGY WILLISTON, L.L.C. · Williams County, North Dakota

Inactive (IA)Oil and gasSpud 2016

Well facts

Operator
DEVON ENERGY WILLISTON, L.L.C.
Status
Inactive (IA)
Well type
Oil and gas (OG)
Field
WILLISTON
Spud date
Total depth
21,471 ft
Legal location
LOT4 Sec 4 T154N R100W
Footages
465 ft FNL · 845 ft FWL
County
Williams County
NDIC file no.
32293
API no.
33-105-04221-00-00

Location & navigation

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48.19650, -103.55761

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

92 months reported, Jan 2019 to Aug 2026, BAKKEN pool.

Cumulative oil243KbblJan ’19 to Aug ’26 · 92 of 92 months known
Peak oil rate845bbl/dJul 2019 · 22,810 bbl in 27 days
Oil, last 12 months3,326bbl-56% against the 12 before
Gas–oil ratio, last 12 months8,307scf/bblfirst year 1,101 scf/bbl
Water cut, last 12 months85%first year 68% · 611K bbl water in all
Gas sold, last 12 months96%of gas produced · 396 mcf reported flared
05001,000Oil bbl/d620192020202120222023202420252026

Early time

First reported month
Jan 2019
Months to peak
7 (Jul 2019)
Peak month rate
845 bbl/d on 27 days
First 3 months, oil
10,030 bbl
First 6 months, oil
33,907 bbl
First 12 months, oil
108,319 bbl
First 24 months, oil
175,414 bbl
Share of cumulative in year 1
45%

Today

Last reported month
Aug 2026
Last month with oil
Jun 2026
Latest oil rate
6 bbl/d
Latest rate as share of peak
0.8%
Uptime, last 12 months
82% of days
Cumulative gas
595K mcf
Cumulative water
611K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
5555,6592,707301810,19683%
5475,4752,709311810,00983%
5145,0872,61830179,89784%
5145,2012,601311710,11983%
3333,7091,817311111,13885%
1498281,1712855,55789%
1915031,2773162,63487%
1473739193052,53786%
1962921,2263161,49086%
1805031,3922862,79489%
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)
symbolIA-OG

DMR shapefile columns not shown above, unchanged.