BBakken SubsurfaceNorth Dakota well index

NDIC file 23115 · API 33-105-02665-00-00

TOMAHAWK 10-3 1H

Operated by Zavanna Energy Operating, LLC · Williams County, North Dakota

Active (A)Oil and gasSpud 2012

Well facts

Operator
Zavanna Energy Operating, LLC
Status
Active (A)
Well type
Oil and gas (OG)
Field
EAST FORK
Spud date
Total depth
20,570 ft
Legal location
SWSE Sec 10 T155N R99W
Footages
320 ft FSL · 2,425 ft FEL
County
Williams County
NDIC file no.
23115
API no.
33-105-02665-00-00

Location & navigation

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48.25657, -103.39862

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

168 months reported, Sep 2012 to Aug 2026, BAKKEN and CONFIDENTIAL pools.

Cumulative oil277KbblSep ’12 to Aug ’26 · 166 of 168 months known
Peak oil rate1,275bbl/dMay 2015 · 2,550 bbl in 2 days
Oil, last 12 months1,238bbl12 of 12 months known
Gas–oil ratio, last 12 months1,824scf/bblfirst year 1,394 scf/bbl
Water cut, last 12 months69%first year 41% · 262K bbl water in all
Gas sold, last 12 months30%of gas produced · 812 mcf reported flared
05001,0001,500Oil bbl/d142014201620182020202220242026

Early time

First reported month
Sep 2012
Months to peak
6 (Feb 2013)
Peak month rate
1,275 bbl/d on 2 days
First 3 months, oil
14,953 bbl (1 of 3 known)
First 6 months, oil
62,533 bbl (4 of 6 known)
First 12 months, oil
128,106 bbl (10 of 12 known)
First 24 months, oil
187,932 bbl (22 of 24 known)
Share of cumulative in year 1
46%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
14 bbl/d
Latest rate as share of peak
1.1%
Uptime, last 12 months
22% of days
Cumulative gas
1.06M mcf
Cumulative water
262K bbl
Unknown months
2 of 168 (confidential or not in that month's report)
Pools reported
BAKKEN, CONFIDENTIAL
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
0000———
2851,0361,44024123,63583%
310101333,6670%
0000———
0000———
0000———
0000———
0000———
0000———
06010——
53963997825221,18664%
41147636930141,15847%

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.