BBakken SubsurfaceNorth Dakota well index

NDIC file 32238 · API 33-105-04217-00-00

MARK 4-9F XE #1H

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

Active (A)Oil and gasSpud 2017

Well facts

Operator
DEVON ENERGY WILLISTON, L.L.C.
Status
Active (A)
Well type
Oil and gas (OG)
Field
WILLISTON
Spud date
Total depth
21,099 ft
Legal location
LOT1 Sec 4 T154N R100W
Footages
436 ft FNL · 1,110 ft FEL
County
Williams County
NDIC file no.
32238
API no.
33-105-04217-00-00

Location & navigation

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48.19656, -103.54402

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 oil312KbblJan ’19 to Aug ’26 · 92 of 92 months known
Peak oil rate728bbl/dAug 2019 · 18,940 bbl in 26 days
Oil, last 12 months6,311bbl-36% against the 12 before
Gas–oil ratio, last 12 months14,056scf/bblfirst year 1,216 scf/bbl
Water cut, last 12 months80%first year 62% · 534K bbl water in all
Gas sold, last 12 months97%of gas produced · 1,577 mcf reported flared
0250500750Oil bbl/d2020192020202120222023202420252026

Early time

First reported month
Jan 2019
Months to peak
8 (Aug 2019)
Peak month rate
728 bbl/d on 26 days
First 3 months, oil
22,551 bbl
First 6 months, oil
46,111 bbl
First 12 months, oil
124,298 bbl
First 24 months, oil
209,852 bbl
Share of cumulative in year 1
40%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
20 bbl/d
Latest rate as share of peak
2.7%
Uptime, last 12 months
93% of days
Cumulative gas
980K mcf
Cumulative water
534K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
6719,6432,457292314,37179%
6819,7152,224312214,26677%
6018,7791,923302014,60776%
5878,3512,114311914,22778%
6128,2292,340312013,44679%
5357,2692,127281913,58780%
5767,6712,371311913,31880%
5197,1592,374301713,79482%
4906,9542,244311614,19282%
4386,1322,177301514,00083%
2023,091953161315,30283%
3995,7171,716202014,32881%

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.