BBakken SubsurfaceNorth Dakota well index

NDIC file 35635 · API 33-025-03605-00-00

ST. ANTHONY 9-16HZ

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

Active (A)Oil and gasSpud 2019

Well facts

Operator
DEVON ENERGY WILLISTON, L.L.C.
Status
Active (A)
Well type
Oil and gas (OG)
Field
MANDAREE
Spud date
Total depth
21,031 ft
Legal location
NENW Sec 9 T149N R93W
Footages
400 ft FNL · 1,992 ft FWL
County
Dunn County
NDIC file no.
35635
API no.
33-025-03605-00-00

Location & navigation

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47.74535, -102.59169

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

82 months reported, Nov 2019 to Aug 2026, BAKKEN pool.

Cumulative oil437KbblNov ’19 to Aug ’26 · 82 of 82 months known
Peak oil rate1,416bbl/dDec 2019 · 25,482 bbl in 18 days
Oil, last 12 months14.9Kbbl-42% against the 12 before
Gas–oil ratio, last 12 months7,824scf/bblfirst year 1,184 scf/bbl
Water cut, last 12 months63%first year 52% · 486K bbl water in all
Gas sold, last 12 months96%of gas produced · 1,111 mcf reported flared
05001,0001,500Oil bbl/d502020202120222023202420252026

Early time

First reported month
Nov 2019
Months to peak
6 (Apr 2020)
Peak month rate
1,416 bbl/d on 18 days
First 3 months, oil
39,448 bbl
First 6 months, oil
124,700 bbl
First 12 months, oil
225,326 bbl
First 24 months, oil
313,039 bbl
Share of cumulative in year 1
52%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
50 bbl/d
Latest rate as share of peak
3.5%
Uptime, last 12 months
79% of days
Cumulative gas
1.04M mcf
Cumulative water
486K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
8827,1041,03217528,05454%
1,53010,1474,21626596,63273%
1,55610,9212,60225627,01963%
2,34516,1363,12731766,88157%
1,64213,0282,67231537,93462%
1,05611,7152,085254211,09466%
22011210,00033%
3724,885836113413,13269%
1,2209,6862,09131397,93963%
1,41010,4912,16630477,44061%
1,36110,7272,12031447,88261%
1,54611,8902,77731507,69164%

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.