BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T150N R93W sections 1, 12

Spacing unit8 wells allowed · order 31536Reunion Bay-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T150N R93W sections 1, 12
Pool
Reunion Bay-Bakken
Zone
Zone VI
County
Mountrail County
Surveyed wells inside
10
Most wells operated by
Burlington / Marathon
Unit id
dsu-18cbef8eb331bcc31046
Wells allowed by the latest linked order
8
Wells assigned to this unit
9
Pending permits inside
0
Balance under the allowance
-2
First linked order
Mar 27, 2009
Review note
over_allowance
Laterals that still fit (Nov 2026 method)
1 (0.95 two-mile equivalents)
Neighbourhood target density
9.42 two-mile laterals per 1,280 acres
Density drilled so far
8.73 per 1,280 acres

Room to drill: 1 lateral still fit at the density this unit's neighbourhood has reached (the larger of the 75th percentile of mature units within 10 miles and the median of units drilled in the last three years), placed in the widest gaps with the setbacks of the November 2026 method. Machine-made and geometric: not a commitment to drill, not a permit, order, lease or plan, and no economics. Land is counted once, so a unit under a larger unit shows only what the larger one left. How it is computed.

Map

FANNIE USA 21-1HDUTTON USA 21-1TFHDESERLY USA 11-1TFHWILKINSON USA 11-1HTARA JO USA 34-12HYOUNG WOMAN USA 44-12HWALKING EAGLE USA 44-12TFHTARA JO USA 34-12TFHHOWARD USA 11-1HBIRDS BILL USA 41-2TFH1 mi

DMR footprint (NAD83) with the published surface locations of its wells. Laterals run under the unit; pads often sit on a neighbouring section.

Open in the regional 3D viewerFootprint, wells and production playbackSee on the cases and orders mapHistorical spacing units by order

Wells inside the unit

WellOperatorStatusLateral inside
FANNIE USA 21-1HMARATHON OIL COMPANYActive (A)10,260 ft100%
DUTTON USA 21-1TFHMARATHON OIL COMPANYActive (A)10,258 ft100%
DESERLY USA 11-1TFHMARATHON OIL COMPANYActive (A)10,227 ft100%
WILKINSON USA 11-1HMARATHON OIL COMPANYActive (A)10,184 ft100%
TARA JO USA 34-12HMARATHON OIL COMPANYActive (A)9,904 ft100%
YOUNG WOMAN USA 44-12HMARATHON OIL COMPANYActive (A)9,845 ft100%
WALKING EAGLE USA 44-12TFHMARATHON OIL COMPANYActive (A)9,840 ft100%
TARA JO USA 34-12TFHMARATHON OIL COMPANYActive (A)9,285 ft100%
HOWARD USA 11-1HMARATHON OIL COMPANYActive (A)8,890 ft100%
BIRDS BILL USA 41-2TFHMARATHON OIL COMPANYActive (A)3,192 ft32%

Surveyed Bakken-system laterals with at least 660 ft of plan-view length inside the published footprint. Geometric membership, not a legal assignment; a lateral can cross several units.

Order history

  1. Order 12898Case 10898Established the spacing unitMARATHON OIL CO.
  2. Order 13558Case 11439Designated the spacing unit
  3. Order 14945Case 12684Designated the spacing unitMARATHON OIL CO.
  4. Order 15256Case 12989Designated the spacing unit, 2 wells allowedMARATHON OIL CO.
  5. Order 16551Case 14275Pooled all interests in the unitMARATHON OIL CO.
  6. Order 17198Case 14948Established the spacing unit, 4 wells allowedMARATHON OIL CO.
  7. Order 18909Case 16640Established the spacing unit, 7 wells allowedMARATHON OIL CO.
  8. Order 28062Case 25652Designated the spacing unit, 2 wells allowedMARATHON OIL CO.
  9. Order 28062Case 25652Listed the unit in a pool zone table, 7 wells allowedMARATHON OIL CO.
  10. Order 28145Case 25735Established the spacing unit, 8 wells allowedMARATHON OIL CO.

Facts extracted from signed NDIC orders whose land description covers this footprint; machine-extracted and not human-reviewed. A stated allowance is what that order allowed, not proof that it governs today.

Overlapping units

4 other units share a surveyed well with this one; overlapping units are not additive.