BBakken SubsurfaceNorth Dakota well index

NDIC file 16620 · API 33-105-01627-00-00

GBU MARSDEN 14X-12

Operated by XTO ENERGY INC · Williams County, North Dakota

Active (A)Oil and gasSpud 2007

Well facts

Operator
XTO ENERGY INC
Status
Active (A)
Well type
Oil and gas (OG)
Field
GRINNELL
Spud date
Total depth
16,601 ft
Legal location
SWSW Sec 12 T154N R96W
Footages
700 ft FSL · 300 ft FWL
County
Williams County
NDIC file no.
16620
API no.
33-105-01627-00-00

Location & navigation

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48.17021, -102.97782

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 oil170KbblAug ’07 to Aug ’26 · 227 of 229 months known
Peak oil rate178bbl/dOct 2007 · 5,514 bbl in 31 days
Oil, last 12 months2,225bbl-47% against the 12 before
Gas–oil ratio, last 12 months2,442scf/bblfirst year 1,687 scf/bbl
Water cut, last 12 months37%first year 17% · 76.7K bbl water in all
Gas sold, last 12 months43%of gas produced · 1,001 mcf reported flared
0100200Oil bbl/d22008201020122014201620182020202220242026

Early time

First reported month
Aug 2007
Months to peak
3 (Oct 2007)
Peak month rate
178 bbl/d on 31 days
First 3 months, oil
5,514 bbl (1 of 3 known)
First 6 months, oil
13,926 bbl (4 of 6 known)
First 12 months, oil
23,772 bbl (10 of 12 known)
First 24 months, oil
34,593 bbl (22 of 24 known)
Share of cumulative in year 1
14%

Today

Last reported month
Aug 2026
Last month with oil
May 2026
Latest oil rate
2 bbl/d
Latest rate as share of peak
1.1%
Uptime, last 12 months
68% of days
Cumulative gas
333K mcf
Cumulative water
76.7K bbl
Unknown months
2 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
34890323930122,59541%
32677927331112,39046%
30987313930102,82531%
30182418131102,73838%
3026865731102,27216%
227480822882,11527%
2175161623172,37843%
1793371403061,88344%
163526822,18862%
0000———
0000———
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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.