BBakken SubsurfaceNorth Dakota well index

NDIC file 37218 · API 33-061-04642-00-00

ZEPHYR FEDERAL 4-36H

Operated by SLAWSON EXPLORATION COMPANY, INC. · Mountrail County, North Dakota

Active (A)Oil and gasSpud 2020

Well facts

Operator
SLAWSON EXPLORATION COMPANY, INC.
Status
Active (A)
Well type
Oil and gas (OG)
Field
BIG BEND
Spud date
Total depth
15,618 ft
Legal location
LOT3 Sec 1 T151N R93W
Footages
420 ft FNL · 2,005 ft FWL
County
Mountrail County
NDIC file no.
37218
API no.
33-061-04642-00-00

Location & navigation

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47.93312, -102.52740

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

60 months reported, Sep 2021 to Aug 2026, BAKKEN pool.

Cumulative oil285KbblSep ’21 to Aug ’26 · 60 of 60 months known
Peak oil rate996bbl/dOct 2021 · 19,925 bbl in 20 days
Oil, last 12 months17.2Kbbl-32% against the 12 before
Gas–oil ratio, last 12 months4,151scf/bblfirst year 1,000 scf/bbl
Water cut, last 12 months53%first year 50% · 285K bbl water in all
Gas sold, last 12 months96%of gas produced · 1,503 mcf reported flared
05001,000Oil bbl/d44Sep ’21Mar ’22Sep ’22Mar ’23Sep ’23Mar ’24Sep ’24Mar ’25Sep ’25Mar ’26

Early time

First reported month
Sep 2021
Months to peak
4 (Dec 2021)
Peak month rate
996 bbl/d on 20 days
First 3 months, oil
42,201 bbl
First 6 months, oil
101,752 bbl
First 12 months, oil
148,758 bbl
First 24 months, oil
197,912 bbl
Share of cumulative in year 1
52%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
44 bbl/d
Latest rate as share of peak
4.4%
Uptime, last 12 months
91% of days
Cumulative gas
454K mcf
Cumulative water
285K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
1,6847,0962,42829584,21459%
1,7947,2552,44931584,04458%
1,5786,65893327584,21937%
1,6166,5521,18530544,05442%
1,6506,3041,50430553,82148%
3101,2683586524,09054%
8673,3411,53125353,85464%
1,6225,5911,87230543,44754%
1,7696,7141,76831573,79550%
1,5076,0641,92530504,02456%
1,4186,6121,71131464,66355%
1,3637,8571,58031445,76454%

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.