BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

3,840-acre Bakken spacing unit

T151N R92W sections 25, 26, 35, 36

Spacing unit2 wells allowed · order 34203Big Bend-Bakken

Unit facts

Formation
Bakken
Acres
3,840
Type
Spacing unit
Land described
T151N R92W sections 25, 26, 35, 36
Pool
Big Bend-Bakken
Zone
Zone LIII
County
Mountrail County
Surveyed wells inside
23
Most wells operated by
Slawson
Unit id
dsu-e9b53a86b9d008942350
Wells allowed by the latest linked order
2
Wells assigned to this unit
1
Pending permits inside
0
Balance under the allowance
-21
First linked order
Mar 10, 2014
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
8.52 two-mile laterals per 1,280 acres
Density drilled so far
8.23 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

OSPREY FEDERAL 7-26-29TFHOSPREY FEDERAL 6-26-29TFHOSPREY FEDERAL 3-26-29HOSPREY FEDERAL 2-26-29HOSPREY FEDERAL 2 SLHOSPREY FEDERAL 5-26-29TFHOSPREY FEDERAL 4-26-29TFHSERPENT FEDERAL 8-36-32HSERPENT FEDERAL 3-36-32HSERPENT FEDERAL 6-36-32TFHSERPENT FEDERAL 7-36-32TFHSERPENT (FEDERAL) 4 SLTFHSERPENT FEDERAL 5-36-32TFHOSPREY FEDERAL 1-26-25-30HSERPENT FEDERAL 1-36-31HSERPENT FEDERAL 2-36-31HSERPENT (FEDERAL) 4-36-31TFHGOBBLER FEDERAL 6-35-26TFHGOBBLER FEDERAL 3-35-26HSUBMARINER FEDERAL 2 SLHSERPENT (FEDERAL) 1 SLHREVOLVER 7-35TFHREVOLVER 2-35H1 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
OSPREY FEDERAL 7-26-29TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)14,568 ft100%
OSPREY FEDERAL 6-26-29TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)14,553 ft100%
OSPREY FEDERAL 3-26-29HSLAWSON EXPLORATION COMPANY, INC.Active (A)14,477 ft100%
OSPREY FEDERAL 2-26-29HSLAWSON EXPLORATION COMPANY, INC.Active (A)14,420 ft100%
OSPREY FEDERAL 2 SLHSLAWSON EXPLORATION COMPANY, INC.Active (A)14,402 ft100%
OSPREY FEDERAL 5-26-29TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)14,183 ft100%
OSPREY FEDERAL 4-26-29TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)14,093 ft100%
SERPENT FEDERAL 8-36-32HSLAWSON EXPLORATION COMPANY, INC.Active (A)13,658 ft85%
SERPENT FEDERAL 3-36-32HSLAWSON EXPLORATION COMPANY, INC.Active (A)12,790 ft84%
SERPENT FEDERAL 6-36-32TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)12,769 ft85%
SERPENT FEDERAL 7-36-32TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)12,764 ft84%
SERPENT (FEDERAL) 4 SLTFHSLAWSON EXPLORATION COMPANY, INC.Active (A)12,739 ft84%
SERPENT FEDERAL 5-36-32TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)12,699 ft84%
OSPREY FEDERAL 1-26-25-30HSLAWSON EXPLORATION COMPANY, INC.Active (A)11,513 ft100%
SERPENT FEDERAL 1-36-31HSLAWSON EXPLORATION COMPANY, INC.Active (A)10,768 ft100%
SERPENT FEDERAL 2-36-31HSLAWSON EXPLORATION COMPANY, INC.Active (A)10,096 ft100%
SERPENT (FEDERAL) 4-36-31TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)9,847 ft100%
GOBBLER FEDERAL 6-35-26TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)9,560 ft100%
GOBBLER FEDERAL 3-35-26HSLAWSON EXPLORATION COMPANY, INC.Active (A)9,192 ft96%
SUBMARINER FEDERAL 2 SLHSLAWSON EXPLORATION COMPANY, INC.Active (A)4,907 ft29%
SERPENT (FEDERAL) 1 SLHSLAWSON EXPLORATION COMPANY, INC.Active (A)4,504 ft100%
REVOLVER 7-35TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)4,404 ft100%
REVOLVER 2-35HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,255 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 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 27841Case 25438Established the spacing unit, 2 wells allowedSLAWSON EXPLORATION CO., INC.
  6. Order 27841Case 25438Terminated the spacing unitSLAWSON EXPLORATION CO., INC.
  7. Order 28092Case 25682Designated the spacing unit, 2 wells allowedSLAWSON EXPLORATION CO., INC.
  8. Order 28414Case 26001Pooled 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

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