BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T151N R92W sections 21, 22

Spacing unit2 wells allowed · order 34203Big Bend-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T151N R92W sections 21, 22
Pool
Big Bend-Bakken
Zone
Zone XIX
County
Mountrail County
Surveyed wells inside
15
Most wells operated by
Slawson
Unit id
dsu-53dbe08ca94133ea6565
Wells allowed by the latest linked order
2
Wells assigned to this unit
1
Pending permits inside
0
Balance under the allowance
-13
First linked order
Mar 10, 2014
Laterals that still fit (Nov 2026 method)
1 (0.95 two-mile equivalents)
Neighbourhood target density
9.04 two-mile laterals per 1,280 acres
Density drilled so far
7.77 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

Switchback 4-21UTFHSwitchback 5-21UTFHArmada Federal 1 SLHNEPTANG 7-22-15TFHNEPTANG 5-22-15TFHMUSTANG 1 SLHNEPTANG 3-15-22HDIAMONDBACK 3-21HNEPTANG 6-22-15TFHNEPTANG 4-22-15TFHMUSTANG 1-22HDIAMONDBACK 2-21HDIAMONDBACK 1-21HMUSTANG 2-22HDIAMONDBACK 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
Switchback 4-21UTFHSLAWSON EXPLORATION COMPANY, INC.Active (A)10,840 ft100%
Switchback 5-21UTFHSLAWSON EXPLORATION COMPANY, INC.Active (A)9,954 ft100%
Armada Federal 1 SLHSLAWSON EXPLORATION COMPANY, INC.Active (A)5,221 ft53%
NEPTANG 7-22-15TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)5,105 ft53%
NEPTANG 5-22-15TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)5,096 ft50%
MUSTANG 1 SLHSLAWSON EXPLORATION COMPANY, INC.Active (A)5,090 ft100%
NEPTANG 3-15-22HSLAWSON EXPLORATION COMPANY, INC.Active (A)5,065 ft51%
DIAMONDBACK 3-21HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,848 ft100%
NEPTANG 6-22-15TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)4,724 ft48%
NEPTANG 4-22-15TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)4,549 ft47%
MUSTANG 1-22HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,474 ft100%
DIAMONDBACK 2-21HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,411 ft100%
DIAMONDBACK 1-21HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,398 ft100%
MUSTANG 2-22HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,168 ft100%
DIAMONDBACK 1 SLHSLAWSON EXPLORATION COMPANY, INC.Active (A)3,609 ft74%

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 22418Case 20113Established the spacing unit, 1 well allowedSLAWSON EXPLORATION CO., INC.
  2. Order 22418Case 20113Designated the spacing unitSLAWSON EXPLORATION CO., INC.
  3. Order 24511Case 22177Designated the spacing unit, 2 wells allowedSLAWSON EXPLORATION CO., INC.
  4. Order 24606Case 22272Established the spacing unit, 2 wells allowedSLAWSON EXPLORATION CO., INC.
  5. Order 25973Case 23632Pooled all interests in the unitSLAWSON EXPLORATION CO., INC.
  6. Order 30829Case 28371Designated the spacing unitSLAWSON 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

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