BBakken SubsurfaceNorth Dakota well index

NDIC file 34451 · API 33-061-04164-00-00

GREYBULL USA 31-18TFH

Operated by MARATHON OIL COMPANY · Mountrail County, North Dakota

Active (A)Oil and gasSpud 2018

Well facts

Operator
MARATHON OIL COMPANY
Status
Active (A)
Well type
Oil and gas (OG)
Field
VAN HOOK
Spud date
Total depth
20,977 ft
Legal location
NENW Sec 18 T150N R92W
Footages
467 ft FNL · 2,119 ft FWL
County
Mountrail County
NDIC file no.
34451
API no.
33-061-04164-00-00

Location & navigation

Navigate with Google MapsDriving directions to the well headOpen in Google MapsSatellite view of the padOpen in Apple Maps

47.81742, -102.50547

Published surface location (NAD83). A horizontal well's lateral can run up to three miles from this point.

See it in 3D

Open in the regional 3D viewerSurveyed well path, operator and production; Bakken-system horizontals onlyBakken Subsurface 3DBasin-wide production playback

Production

90 months reported, Mar 2019 to Aug 2026, BAKKEN pool.

Cumulative oil500KbblMar ’19 to Aug ’26 · 90 of 90 months known
Peak oil rate1,508bbl/dMar 2019 · 33,182 bbl in 22 days
Oil, last 12 months21.8Kbbl-14% against the 12 before
Gas–oil ratio, last 12 months2,966scf/bblfirst year 1,246 scf/bbl
Water cut, last 12 months57%first year 52% · 601K bbl water in all
Gas sold, last 12 months92%of gas produced · 2,430 mcf reported flared
01,0002,000Oil bbl/d502020202120222023202420252026

Early time

First reported month
Mar 2019
Months to peak
2 (Apr 2019)
Peak month rate
1,508 bbl/d on 22 days
First 3 months, oil
98,445 bbl
First 6 months, oil
176,426 bbl
First 12 months, oil
269,881 bbl
First 24 months, oil
362,410 bbl
Share of cumulative in year 1
54%

Today

Last reported month
Aug 2026
Last month with oil
Aug 2026
Latest oil rate
50 bbl/d
Latest rate as share of peak
3.3%
Uptime, last 12 months
77% of days
Cumulative gas
749K mcf
Cumulative water
601K bbl
Pools reported
BAKKEN
Last 12 months as a table
MonthOil bblGas mcfWater bblDaysOil bbl/dGOR scf/bblWater cut
3,2338,8374,870301082,73360%
2,9377,9204,19330982,69759%
3,0247,8973,195301012,61151%
2,3047,0472,51627853,05952%
1,5395,4462,02922703,53957%
1,4775,8882,09528533,98659%
2,3567,9743,27731763,38558%
1,5564,1761,96822712,68456%
0000———
0000———
1,8425,2172,43831592,83257%
1,5554,3332,33731502,78660%

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.