BBakken SubsurfaceNorth Dakota well index

NDIC file 36845 · API 33-061-04562-00-00

ASLAK USA 44-21TFH

Operated by MARATHON OIL COMPANY · Mountrail County, North Dakota

Active (A)Oil and gasSpud 2019

Well facts

Operator
MARATHON OIL COMPANY
Status
Active (A)
Well type
Oil and gas (OG)
Field
REUNION BAY
Spud date
Total depth
21,195 ft
Legal location
SWSE Sec 21 T151N R93W
Footages
305 ft FSL · 1,636 ft FEL
County
Mountrail County
NDIC file no.
36845
API no.
33-061-04562-00-00

Location & navigation

Navigate with Google MapsDriving directions to the well headOpen in Google MapsSatellite view of the padOpen in Apple Maps

47.87749, -102.58534

Published surface location (NAD83). A horizontal well's lateral can run up to three miles from this point.

See it in 3D

Open in the regional 3D viewerSurveyed well path, operator and production; Bakken-system horizontals onlyBakken Subsurface 3DBasin-wide production playback

Production

80 months reported, Jan 2020 to Aug 2026, BAKKEN pool.

Cumulative oil393KbblJan ’20 to Aug ’26 · 80 of 80 months known
Peak oil rate1,604bbl/dJan 2020 · 25,668 bbl in 16 days
Oil, last 12 months9,030bbl-26% against the 12 before
Gas–oil ratio, last 12 months10,590scf/bblfirst year 1,621 scf/bbl
Water cut, last 12 months65%first year 60% · 551K bbl water in all
Gas sold, last 12 months97%of gas produced · 1,438 mcf reported flared
01,0002,000Oil bbl/d372020202120222023202420252026

Early time

First reported month
Jan 2020
Months to peak
5 (May 2020)
Peak month rate
1,604 bbl/d on 16 days
First 3 months, oil
75,581 bbl
First 6 months, oil
154,008 bbl
First 12 months, oil
233,390 bbl
First 24 months, oil
303,386 bbl
Share of cumulative in year 1
59%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
37 bbl/d
Latest rate as share of peak
2.3%
Uptime, last 12 months
72% of days
Cumulative gas
1.22M mcf
Cumulative water
551K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
91311,5011,951303012,59768%
85011,7001,570312713,76565%
4926,990960222214,20766%
2594,117612112415,89670%
3271139,00025%
70410,6781,466174115,16868%
0000———
1,17614,0752,192274411,96965%
1,2039,0982,23231397,56365%
1,0968,9512,12230378,16766%
1,1809,3812,03831387,95063%
1,1549,1061,91831377,89162%

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.