BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

2,560-acre Bakken spacing unit

T155N R92W sections 28, 29, 32, 33

Spacing unit2 wells allowed · order 35988Alger-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T155N R92W sections 28, 29, 32, 33
Pool
Alger-Bakken
Zone
Zone XXIV
County
Mountrail County
Surveyed wells inside
8
Most wells operated by
Devon Energy
DMR case / order on the footprint
31349 /
Unit id
dsu-1b7e7cea8a733bdf6a72
Wells allowed by the latest linked order
2
Wells assigned to this unit
0
Pending permits inside
0
Balance under the allowance
-6
First linked order
Apr 11, 2025
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
9.44 two-mile laterals per 1,280 acres
Density drilled so far
3.74 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

SORENSON 29-32 3HSORENSON 29-32 4HSORENSON 29-32 2-HANDERSON 28-33 3HANDERSON 28-33 4TFHANDERSON 28-33 2TFHANDERSON 28-33 1-HSORENSON 29-32 1-H1 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
SORENSON 29-32 3HDEVON ENERGY WILLISTON, L.L.C.Active (A)10,239 ft100%
SORENSON 29-32 4HDEVON ENERGY WILLISTON, L.L.C.Active (A)10,188 ft100%
SORENSON 29-32 2-HDEVON ENERGY WILLISTON, L.L.C.Active (A)10,132 ft100%
ANDERSON 28-33 3HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,820 ft100%
ANDERSON 28-33 4TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,761 ft100%
ANDERSON 28-33 2TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,648 ft100%
ANDERSON 28-33 1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,588 ft100%
SORENSON 29-32 1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,421 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 34049Case 31349Established the spacing unit, 2 wells allowedGRAYSON MILL OPERATING, LLC
  2. Order 34069Case 31369Pooled all interests in the unitGRAYSON MILL OPERATING, LLC

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

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