BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

640-acre Bakken spacing unit

T151N R92W section 4

Spacing unit3 wells allowed · order 34203Big Bend-Bakken

Unit facts

Formation
Bakken
Acres
640
Type
Spacing unit
Land described
T151N R92W section 4
Pool
Big Bend-Bakken
Zone
Zone VI
County
Mountrail County
Surveyed wells inside
9
Most wells operated by
Slawson
Unit id
dsu-70464e59087ac09b7b39
Wells allowed by the latest linked order
3
Wells assigned to this unit
2
Pending permits inside
0
Balance under the allowance
-6
First linked order
Jul 13, 2010
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
8.99 two-mile laterals per 1,280 acres
Density drilled so far
9.55 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

WOLF 2-4MLHHOWO 2-4-33MLHWOLF 1-4HHOWO 6-33-4TFHHOWO 7-33-4TFHHOWO 8-33-4TF2HHOWO 4-33-4TFHHOWO 5-33-4TFHWOLF 1 SLH1 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
WOLF 2-4MLHSLAWSON EXPLORATION COMPANY, INC.Active (A)8,832 ft100%
HOWO 2-4-33MLHSLAWSON EXPLORATION COMPANY, INC.Active (A)6,281 ft45%
WOLF 1-4HSLAWSON EXPLORATION COMPANY, INC.Active (A)5,763 ft100%
HOWO 6-33-4TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)5,022 ft52%
HOWO 7-33-4TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)5,020 ft50%
HOWO 8-33-4TF2HSLAWSON EXPLORATION COMPANY, INC.Active (A)5,004 ft53%
HOWO 4-33-4TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)5,001 ft52%
HOWO 5-33-4TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)4,967 ft52%
WOLF 1 SLHSLAWSON EXPLORATION COMPANY, INC.Active (A)4,110 ft42%

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 14889Case 12629Pooled all interests in the unitSLAWSON EXPLORATION CO., INC.
  2. Order 19881Case 17611Pooled all interests in the unitSLAWSON EXPLORATION CO., INC.
  3. Order 21993Case 19687Established the spacing unit, 3 wells allowedSLAWSON EXPLORATION CO., INC.

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

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