BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T152N R91W sections 21, 28

Spacing unit4 wells allowed · order 34203Big Bend-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T152N R91W sections 21, 28
Pool
Big Bend-Bakken
Zone
Zone XXI
County
Mountrail County
Surveyed wells inside
13
Most wells operated by
Slawson
Unit id
dsu-072b6201b341c76499e6
Wells allowed by the latest linked order
4
Wells assigned to this unit
3
Pending permits inside
0
Balance under the allowance
-9
First linked order
Dec 12, 2013
Laterals that still fit (Nov 2026 method)
1 (0.95 two-mile equivalents)
Neighbourhood target density
8.15 two-mile laterals per 1,280 acres
Density drilled so far
7.32 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

Fisherman 5-21-28TFHFisherman 4-21-28HPayara 5 SLTFHVOYAGER 3-28HFish Finder 4-21-9HFish Finder 5-21-9HSauger Federal 5 SLTFHVoyager 4-28HVOYAGER 2-28HPAYARA 3-21HPAYARA 2-21HVOYAGER 1-28HPAYARA 1-21H1 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
Fisherman 5-21-28TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)10,200 ft100%
Fisherman 4-21-28HSLAWSON EXPLORATION COMPANY, INC.Active (A)10,120 ft100%
Payara 5 SLTFHSLAWSON EXPLORATION COMPANY, INC.Active (A)10,113 ft100%
VOYAGER 3-28HSLAWSON EXPLORATION COMPANY, INC.Active (A)6,001 ft100%
Fish Finder 4-21-9HSLAWSON EXPLORATION COMPANY, INC.Active (A)5,133 ft39%
Fish Finder 5-21-9HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,939 ft40%
Sauger Federal 5 SLTFHSLAWSON EXPLORATION COMPANY, INC.Inactive (IA)4,774 ft48%
Voyager 4-28HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,723 ft100%
VOYAGER 2-28HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,666 ft100%
PAYARA 3-21HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,177 ft100%
PAYARA 2-21HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,127 ft100%
VOYAGER 1-28HSLAWSON EXPLORATION COMPANY, INC.Active (A)3,947 ft100%
PAYARA 1-21HSLAWSON EXPLORATION COMPANY, INC.Active (A)3,932 ft100%

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 21993Case 19687Designated the spacing unit, 4 wells allowedSLAWSON EXPLORATION CO., INC.
  2. Order 22417Case 20112Established the spacing unit, 4 wells allowedSLAWSON EXPLORATION CO., INC.
  3. Order 24511Case 22177Designated the spacing unit, 7 wells allowedSLAWSON EXPLORATION CO., INC.
  4. Order 24606Case 22272Established the spacing unit, 7 wells allowedSLAWSON EXPLORATION CO., INC.
  5. Order 33202Case 30589Designated the spacing unit, 4 wells allowedSLAWSON EXPLORATION CO., INC.
  6. Order 33303Case 30652Established the spacing unit, 4 wells allowedSLAWSON EXPLORATION CO., INC.
  7. Order 33605Case 30945Pooled all interests in the 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

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