BBakken SubsurfaceNorth Dakota well index

NDIC file 16635 · API 33-061-00534-00-00

SAMPSON 1-12H

Operated by EOG RESOURCES, INC. · Mountrail County, North Dakota

Active (A)Oil and gasSpud 2007

Well facts

Operator
EOG RESOURCES, INC.
Status
Active (A)
Well type
Oil and gas (OG)
Field
PARSHALL
Spud date
Total depth
14,474 ft
Legal location
SESE Sec 12 T152N R90W
Footages
400 ft FSL · 1,200 ft FEL
County
Mountrail County
NDIC file no.
16635
API no.
33-061-00534-00-00

Location & navigation

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47.99347, -102.13365

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

229 months reported, Aug 2007 to Aug 2026, BAKKEN and CONFIDENTIAL pools.

Cumulative oil278KbblAug ’07 to Aug ’26 · 225 of 229 months known
Peak oil rate401bbl/dDec 2007 · 8,024 bbl in 20 days
Oil, last 12 months5,223bbl-48% against the 12 before
Gas–oil ratio, last 12 months848scf/bblfirst year 351 scf/bbl
Water cut, last 12 months16%first year 11% · 57.5K bbl water in all
Gas sold, last 12 months52%of gas produced · 238 mcf reported flared
0200400600Oil bbl/d102008201020122014201620182020202220242026

Early time

First reported month
Aug 2007
Months to peak
6 (Jan 2008)
Peak month rate
401 bbl/d on 20 days
First 3 months, oil
—
First 6 months, oil
19,725 bbl (2 of 6 known)
First 12 months, oil
63,118 bbl (8 of 12 known)
First 24 months, oil
109,007 bbl (20 of 24 known)
Share of cumulative in year 1
23%

Today

Last reported month
Aug 2026
Last month with oil
May 2026
Latest oil rate
10 bbl/d
Latest rate as share of peak
2.5%
Uptime, last 12 months
66% of days
Cumulative gas
131K mcf
Cumulative water
57.5K bbl
Unknown months
4 of 229 (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
715485101203667812%
1,191887245313874517%
1,024797123303477811%
689594173312286220%
800614113312676812%
42540168241894414%
185300853161,62231%
56223252823,98231%
13812736141092021%
0000———
0000———
0000———

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.