BBakken SubsurfaceNorth Dakota well index

NDIC file 27812 · API 33-053-05729-00-00

MASTON 34-27 #4H

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

Active (A)Oil and gasSpud 2014

Well facts

Operator
DEVON ENERGY WILLISTON, L.L.C.
Status
Active (A)
Well type
Oil and gas (OG)
Field
BANKS
Spud date
Total depth
20,530 ft
Legal location
SESW Sec 34 T153N R98W
Footages
429 ft FSL · 1,535 ft FWL
County
McKenzie County
NDIC file no.
27812
API no.
33-053-05729-00-00

Location & navigation

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48.02518, -103.27475

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

137 months reported, Apr 2015 to Aug 2026, BAKKEN pool.

Cumulative oil373KbblApr ’15 to Aug ’26 · 137 of 137 months known
Peak oil rate628bbl/dJul 2015 · 19,469 bbl in 31 days
Oil, last 12 months7,310bbl-14% against the 12 before
Gas–oil ratio, last 12 months7,029scf/bblfirst year 2,061 scf/bbl
Water cut, last 12 months57%first year 43% · 420K bbl water in all
Gas sold, last 12 months86%of gas produced · 166 mcf reported flared
0250500750Oil bbl/d32201620182020202220242026

Early time

First reported month
Apr 2015
Months to peak
4 (Jul 2015)
Peak month rate
628 bbl/d on 31 days
First 3 months, oil
36,955 bbl
First 6 months, oil
80,640 bbl
First 12 months, oil
151,549 bbl
First 24 months, oil
192,733 bbl
Share of cumulative in year 1
41%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
32 bbl/d
Latest rate as share of peak
5.2%
Uptime, last 12 months
90% of days
Cumulative gas
1.26M mcf
Cumulative water
420K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
6974,67557129246,70745%
7644,99577731256,53850%
7035,20661130237,40546%
6985,29162130237,58047%
5314,94877024229,31859%
5713,65894328206,40662%
6364,3751,06631216,87963%
7014,9331,07930237,03761%
6655,1421,00030227,73260%
3303,764512281211,40661%
7699821110813,13274%
9383,3981,56429323,62363%

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.