BBakken SubsurfaceNorth Dakota well index

NDIC file 17446 · API 33-105-01689-00-00

LEONARD 1-23H

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

Active (A)Oil and gasSpud 2008

Well facts

Operator
Zavanna Energy Operating, LLC
Status
Active (A)
Well type
Oil and gas (OG)
Field
STOCKYARD CREEK
Spud date
Total depth
17,110 ft
Legal location
NWNW Sec 23 T154N R99W
Footages
330 ft FNL · 253 ft FWL
County
Williams County
NDIC file no.
17446
API no.
33-105-01689-00-00

Location & navigation

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48.15360, -103.38763

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

213 months reported, Dec 2008 to Aug 2026, BAKKEN and CONFIDENTIAL and MADISON pools.

Cumulative oil199KbblDec ’08 to Aug ’26 · 211 of 213 months known
Peak oil rate200bbl/dNov 2009 · 5,787 bbl in 29 days
Oil, last 12 months5,930bbl-39% against the 12 before
Gas–oil ratio, last 12 months1,390scf/bblfirst year 1,412 scf/bbl
Water cut, last 12 months42%first year 30% · 89.8K bbl water in all
Gas sold, last 12 months0%of gas produced · 6,742 mcf reported flared
0100200Oil bbl/d45201020122014201620182020202220242026

Early time

First reported month
Dec 2008
Months to peak
12 (Nov 2009)
Peak month rate
200 bbl/d on 29 days
First 3 months, oil
2,127 bbl (1 of 3 known)
First 6 months, oil
12,435 bbl (4 of 6 known)
First 12 months, oil
29,414 bbl (10 of 12 known)
First 24 months, oil
63,417 bbl (22 of 24 known)
Share of cumulative in year 1
15%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
45 bbl/d
Latest rate as share of peak
22.8%
Uptime, last 12 months
43% of days
Cumulative gas
302K mcf
Cumulative water
89.8K bbl
Unknown months
2 of 213 (confidential or not in that month's report)
Pools reported
BAKKEN, CONFIDENTIAL, MADISON
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
6621,66826430222,52029%
125342557182,73631%
0000———
0000———
0000———
0000———
0038410—100%
0000———
1,0972,1371,12329381,94851%
1,3271,37287828471,03440%
1,3101,31783031421,00539%
1,4091,40981131451,00037%

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.