BBakken SubsurfaceNorth Dakota well index

NDIC file 22384 · API 33-105-02535-00-00

MARK 4-9 #1H

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

Active (A)Oil and gasSpud 2012

Well facts

Operator
DEVON ENERGY WILLISTON, L.L.C.
Status
Active (A)
Well type
Oil and gas (OG)
Field
WILLISTON
Spud date
Total depth
20,526 ft
Legal location
LOT2 Sec 4 T154N R100W
Footages
375 ft FNL · 1,360 ft FEL
County
Williams County
NDIC file no.
22384
API no.
33-105-02535-00-00

Location & navigation

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48.19673, -103.54505

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

173 months reported, Apr 2012 to Aug 2026, BAKKEN and CONFIDENTIAL pools.

Cumulative oil474KbblApr ’12 to Aug ’26 · 171 of 173 months known
Peak oil rate621bbl/dJan 2019 · 1,242 bbl in 2 days
Oil, last 12 months4,883bbl-27% against the 12 before
Gas–oil ratio, last 12 months11,640scf/bblfirst year 943 scf/bbl
Water cut, last 12 months73%first year 31% · 772K bbl water in all
Gas sold, last 12 months97%of gas produced · 593 mcf reported flared
0250500750Oil bbl/d112014201620182020202220242026

Early time

First reported month
Apr 2012
Months to peak
3 (Jun 2012)
Peak month rate
621 bbl/d on 2 days
First 3 months, oil
17,532 bbl (1 of 3 known)
First 6 months, oil
49,664 bbl (4 of 6 known)
First 12 months, oil
94,673 bbl (10 of 12 known)
First 24 months, oil
137,516 bbl (22 of 24 known)
Share of cumulative in year 1
20%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
11 bbl/d
Latest rate as share of peak
1.8%
Uptime, last 12 months
99% of days
Cumulative gas
979K mcf
Cumulative water
772K bbl
Unknown months
2 of 173 (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
2694,8981,28130918,20883%
4824,9541,390311610,27874%
5694,5581,14530198,01167%
5264,4921,22031178,54070%
4214,4951,150311410,67773%
4374,8931,078281611,19771%
4465,5711,222311412,49173%
3745,262691301214,07065%
3585,3151,044311214,84674%
3424,592874301113,42772%
3474,4071,003311112,70074%
3123,400882281110,89774%

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.