BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

2,560-acre Bakken spacing unit

T150N R93W sections 29, 30, 31, 32

Spacing unit2 wells allowed · order 31536Reunion Bay-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T150N R93W sections 29, 30, 31, 32
Pool
Reunion Bay-Bakken
Zone
Zone XVIII
County
Dunn County
Surveyed wells inside
22
Most wells operated by
Devon Energy
Unit id
dsu-68d86d1502c631c6527f
Wells allowed by the latest linked order
2
Wells assigned to this unit
0
Pending permits inside
0
Balance under the allowance
-20
First linked order
May 22, 2014
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
9.6 two-mile laterals per 1,280 acres
Density drilled so far
11.02 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

MANDAREE SOUTH 30-31HELMANDAREE SOUTH 30-31HQMANDAREE 30-31HWELLS 32-29HMANDAREE 30-31HAVICTOR ELK 32-29HWVICTOR ELK 32-29HBWELLS 32-29HZMANDAREE 30-31HWWELLS 32-29HDBEHR 30-31HIVICTOR ELK 32-29HABEHR 30-31HTLBEHR 30-31HUALFRED OLD DOG 30-31 HCALFRED OLD DOG 30-31 HYALFRED OLD DOG 30-31 HDWELLS 32-29HYBIG HORN 32-29HFALFRED OLD DOG 30-31 HZBIG HORN 32-29HXBIG HORN 32-29HT1 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
MANDAREE SOUTH 30-31HELDEVON ENERGY WILLISTON, L.L.C.Active (A)15,056 ft100%
MANDAREE SOUTH 30-31HQDEVON ENERGY WILLISTON, L.L.C.Active (A)11,950 ft100%
MANDAREE 30-31HDEVON ENERGY WILLISTON, L.L.C.Active (A)11,433 ft100%
WELLS 32-29HDEVON ENERGY WILLISTON, L.L.C.Active (A)11,320 ft100%
MANDAREE 30-31HADEVON ENERGY WILLISTON, L.L.C.Active (A)11,209 ft100%
VICTOR ELK 32-29HWWPX ENERGY WILLISTON, LLCPlugged and abandoned (PA)10,162 ft100%
VICTOR ELK 32-29HBDEVON ENERGY WILLISTON, L.L.C.Active (A)10,130 ft100%
WELLS 32-29HZDEVON ENERGY WILLISTON, L.L.C.Active (A)10,108 ft100%
MANDAREE 30-31HWDEVON ENERGY WILLISTON, L.L.C.Active (A)10,100 ft100%
WELLS 32-29HDDEVON ENERGY WILLISTON, L.L.C.Active (A)10,098 ft100%
BEHR 30-31HIDEVON ENERGY WILLISTON, L.L.C.Active (A)10,096 ft100%
VICTOR ELK 32-29HADEVON ENERGY WILLISTON, L.L.C.Active (A)10,087 ft100%
BEHR 30-31HTLDEVON ENERGY WILLISTON, L.L.C.Active (A)10,065 ft100%
BEHR 30-31HUDEVON ENERGY WILLISTON, L.L.C.Active (A)9,999 ft100%
ALFRED OLD DOG 30-31 HCDEVON ENERGY WILLISTON, L.L.C.Active (A)9,972 ft100%
ALFRED OLD DOG 30-31 HYDEVON ENERGY WILLISTON, L.L.C.Active (A)9,967 ft100%
ALFRED OLD DOG 30-31 HDDEVON ENERGY WILLISTON, L.L.C.Active (A)9,964 ft100%
WELLS 32-29HYDEVON ENERGY WILLISTON, L.L.C.Active (A)9,951 ft100%
BIG HORN 32-29HFDEVON ENERGY WILLISTON, L.L.C.Active (A)9,879 ft100%
ALFRED OLD DOG 30-31 HZDEVON ENERGY WILLISTON, L.L.C.Active (A)9,867 ft100%
BIG HORN 32-29HXDEVON ENERGY WILLISTON, L.L.C.Active (A)9,852 ft100%
BIG HORN 32-29HTDEVON ENERGY WILLISTON, L.L.C.Active (A)9,826 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 23347Case 21043Designated the spacing unit, 2 wells allowedMARATHON OIL CO.
  2. Order 23840Case 21498Established the spacing unit, 2 wells allowedWPX ENERGY WILLISTON, LLC
  3. Order 25677Case 23334Pooled all interests in the unitWPX ENERGY WILLISTON, 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

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