BBakken SubsurfaceNorth Dakota well index

NDIC file 32452 · API 33-053-07472-00-00

GRADY USA 21-4H

Operated by MARATHON OIL COMPANY · McKenzie County, North Dakota

Active (A)Oil and gasSpud 2016

Well facts

Operator
MARATHON OIL COMPANY
Status
Active (A)
Well type
Oil and gas (OG)
Field
ANTELOPE
Spud date
Total depth
21,085 ft
Legal location
SESW Sec 33 T152N R94W
Footages
420 ft FSL · 2,385 ft FWL
County
McKenzie County
NDIC file no.
32452
API no.
33-053-07472-00-00

Location & navigation

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47.93550, -102.71897

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

109 months reported, Aug 2017 to Aug 2026, SANISH pool.

Cumulative oil497KbblAug ’17 to Aug ’26 · 109 of 109 months known
Peak oil rate1,634bbl/dSep 2017 · 49,011 bbl in 30 days
Oil, last 12 months7,422bbl-41% against the 12 before
Gas–oil ratio, last 12 months15,363scf/bblfirst year 2,109 scf/bbl
Water cut, last 12 months42%first year 28% · 256K bbl water in all
Gas sold, last 12 months97%of gas produced · 1,319 mcf reported flared
01,0002,000Oil bbl/d23201820192020202120222023202420252026

Early time

First reported month
Aug 2017
Months to peak
2 (Sep 2017)
Peak month rate
1,634 bbl/d on 30 days
First 3 months, oil
114,277 bbl
First 6 months, oil
186,856 bbl
First 12 months, oil
275,543 bbl
First 24 months, oil
330,383 bbl
Share of cumulative in year 1
55%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
23 bbl/d
Latest rate as share of peak
1.4%
Uptime, last 12 months
99% of days
Cumulative gas
1.52M mcf
Cumulative water
256K bbl
Pools reported
SANISH
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
65110,999291302216,89631%
5518,845118301816,05318%
4289,321723301421,77863%
50310,425878311620,72664%
6539,059566312113,87346%
7448,771528282711,78942%
6518,925431312113,71040%
6969,549477302313,72041%
72710,338388302414,22035%
5498,622243301815,70531%
5549,495375311817,13940%
7159,674345312313,53033%

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.