BBakken SubsurfaceNorth Dakota well index

NDIC file 18255 · API 33-023-00561-00-00

VASSEN 27-163-99H

Operated by FORMENTERA OPERATIONS, LLC · Divide County, North Dakota

Active (A)Oil and gasSpud 2009

Well facts

Operator
FORMENTERA OPERATIONS, LLC
Status
Active (A)
Well type
Oil and gas (OG)
Field
AMBROSE
Spud date
Total depth
14,375 ft
Legal location
SESE Sec 27 T163N R99W
Footages
250 ft FSL · 300 ft FEL
County
Divide County
NDIC file no.
18255
API no.
33-023-00561-00-00

Location & navigation

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48.90952, -103.50983

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

202 months reported, Nov 2009 to Aug 2026, BAKKEN and CONFIDENTIAL pools.

Cumulative oil307KbblNov ’09 to Aug ’26 · 199 of 202 months known
Peak oil rate276bbl/dFeb 2010 · 5,795 bbl in 21 days
Oil, last 12 months4,277bbl-1% against the 12 before
Gas–oil ratio, last 12 months1,716scf/bblfirst year 744 scf/bbl
Water cut, last 12 months68%first year 40% · 312K bbl water in all
Gas sold, last 12 months37%of gas produced · 117 mcf reported flared
0100200300Oil bbl/d11201020122014201620182020202220242026

Early time

First reported month
Nov 2009
Months to peak
5 (Mar 2010)
Peak month rate
276 bbl/d on 21 days
First 3 months, oil
—
First 6 months, oil
19,217 bbl (3 of 6 known)
First 12 months, oil
43,798 bbl (9 of 12 known)
First 24 months, oil
101,236 bbl (21 of 24 known)
Share of cumulative in year 1
14%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
11 bbl/d
Latest rate as share of peak
4.1%
Uptime, last 12 months
99% of days
Cumulative gas
293K mcf
Cumulative water
312K bbl
Unknown months
3 of 202 (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
32655974830111,71570%
39864292231131,61370%
35157175430121,62768%
40463692031131,57469%
30454162628111,78067%
32355267428121,70968%
37462879431121,67968%
36062276030121,72868%
37066971731121,80866%
35561371830121,72767%
36468472031121,87966%
34862172731111,78468%

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.