BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T150N R93W sections 2, 11

Spacing unit9 wells allowed · order 31536Reunion Bay-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T150N R93W sections 2, 11
Pool
Reunion Bay-Bakken
Zone
Zone VIII
County
Mountrail County
Surveyed wells inside
10
Most wells operated by
Burlington / Marathon
Unit id
dsu-a288c69a33085dea5d1d
Wells allowed by the latest linked order
9
Wells assigned to this unit
9
Pending permits inside
0
Balance under the allowance
-1
First linked order
Feb 19, 2009
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
9.42 two-mile laterals per 1,280 acres
Density drilled so far
9.07 per 1,280 acres

Room to drill: 0 laterals 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

BIG HEAD USA 41-2TFHALLEN HORN USA 11-2HLOTTIO HORN USA 21-2TFHJULIA HORN USA 11-2TFHHORN USA 21-2HBEARS ARM USA 41-2HWILLIAM USA 31-2TFHWILLIAM USA 31-2HGLADYS USA 21-2HBIRDS 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
BIG HEAD USA 41-2TFHMARATHON OIL COMPANYActive (A)10,385 ft100%
ALLEN HORN USA 11-2HMARATHON OIL COMPANYActive (A)10,180 ft100%
LOTTIO HORN USA 21-2TFHMARATHON OIL COMPANYActive (A)10,106 ft100%
JULIA HORN USA 11-2TFHMARATHON OIL COMPANYActive (A)10,094 ft100%
HORN USA 21-2HMARATHON OIL COMPANYActive (A)10,050 ft100%
BEARS ARM USA 41-2HMARATHON OIL COMPANYActive (A)9,682 ft100%
WILLIAM USA 31-2TFHMARATHON OIL COMPANYActive (A)9,549 ft100%
WILLIAM USA 31-2HMARATHON OIL COMPANYActive (A)9,426 ft100%
GLADYS USA 21-2HMARATHON OIL COMPANYActive (A)9,180 ft100%
BIRDS BILL USA 41-2TFHMARATHON OIL COMPANYActive (A)6,632 ft68%

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 12824Case 10844Established the spacing unitMARATHON OIL CO.
  2. Order 12896Case 10896Designated the spacing unitMARATHON OIL CO.
  3. Order 14945Case 12684Designated the spacing unitMARATHON OIL CO.
  4. Order 15256Case 12989Designated the spacing unit, 2 wells allowedMARATHON OIL CO.
  5. Order 17198Case 14948Established the spacing unit, 4 wells allowedMARATHON OIL CO.
  6. Order 18909Case 16640Established the spacing unit, 7 wells allowedMARATHON OIL CO.
  7. Order 25101Case 22770Designated the spacing unit, 8 wells allowedMARATHON OIL CO.
  8. Order 25461Case 23132Established the spacing unit, 8 wells allowedMARATHON OIL CO.
  9. Order 29480Case 27034Designated the spacing unit, 9 wells allowedMARATHON OIL CO.
  10. Order 29500Case 27054Established the spacing unit, 9 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.