BBakken SubsurfaceNorth Dakota well index

NDIC file 23746 · API 33-105-02801-00-00

MARK 4-9 2TFH

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

Active (A)Oil and gasSpud 2013

Well facts

Operator
DEVON ENERGY WILLISTON, L.L.C.
Status
Active (A)
Well type
Oil and gas (OG)
Field
WILLISTON
Spud date
Total depth
20,524 ft
Legal location
LOT1 Sec 4 T154N R100W
Footages
375 ft FNL · 1,189 ft FEL
County
Williams County
NDIC file no.
23746
API no.
33-105-02801-00-00

Location & navigation

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48.19673, -103.54435

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

152 months reported, Jan 2014 to Aug 2026, BAKKEN pool.

Cumulative oil250KbblJan ’14 to Aug ’26 · 152 of 152 months known
Peak oil rate499bbl/dMar 2014 · 10,976 bbl in 22 days
Oil, last 12 months3,180bbl-25% against the 12 before
Gas–oil ratio, last 12 months6,107scf/bblfirst year 866 scf/bbl
Water cut, last 12 months84%first year 57% · 520K bbl water in all
Gas sold, last 12 months92%of gas produced · 157 mcf reported flared
0200400600Oil bbl/d72014201620182020202220242026

Early time

First reported month
Jan 2014
Months to peak
3 (Mar 2014)
Peak month rate
499 bbl/d on 22 days
First 3 months, oil
25,544 bbl
First 6 months, oil
44,119 bbl
First 12 months, oil
70,268 bbl
First 24 months, oil
122,018 bbl
Share of cumulative in year 1
28%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
7 bbl/d
Latest rate as share of peak
1.5%
Uptime, last 12 months
100% of days
Cumulative gas
437K mcf
Cumulative water
520K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
4561,6991,28630153,72674%
2851,6691,4403195,85683%
1621,4001,6753058,64291%
2151,5261,4213177,09887%
2621,1831,1753184,51582%
2341,3371,3442885,71485%
2781,4671,4333195,27784%
2821,4751,4883095,23084%
2961,5851,41031105,35583%
2411,5781,3363086,54885%
2391,8771,5103187,85486%
2302,6251,62931711,41388%

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.