BBakken SubsurfaceNorth Dakota well index

Spacing unit · McKenzie County

640-acre Bakken spacing unit

T150N R94W section 25

Spacing unit3 wells allowed · order 34542Spotted Horn-Bakken

Unit facts

Formation
Bakken
Acres
640
Type
Spacing unit
Land described
T150N R94W section 25
Pool
Spotted Horn-Bakken
Zone
Zone III
County
McKenzie County
Surveyed wells inside
9
Most wells operated by
Devon Energy
Unit id
dsu-229b6e9ff71621810d04
Wells allowed by the latest linked order
3
Wells assigned to this unit
1
Pending permits inside
0
Balance under the allowance
-6
First linked order
Dec 27, 2010
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
10.01 two-mile laterals per 1,280 acres
Density drilled so far
8.2 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. 2 more would fit the density but not the spacing rule. 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

NATHAN HALE 4-25HMANDAREE SOUTH 25-36HDMANDAREE SOUTH 25-36HCGRIZZLY 25-36HFGRIZZLY 25-36HYGRIZZLY 25-36HWMANDAREE SOUTH 25-36HZMANDAREE SOUTH 25-36HTGRIZZLY 25-36HX1 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
NATHAN HALE 4-25HDEVON ENERGY WILLISTON, L.L.C.Abandoned (AB)5,541 ft100%
MANDAREE SOUTH 25-36HDDEVON ENERGY WILLISTON, L.L.C.Active (A)4,785 ft49%
MANDAREE SOUTH 25-36HCDEVON ENERGY WILLISTON, L.L.C.Active (A)4,784 ft49%
GRIZZLY 25-36HFDEVON ENERGY WILLISTON, L.L.C.Active (A)4,783 ft49%
GRIZZLY 25-36HYDEVON ENERGY WILLISTON, L.L.C.Active (A)4,767 ft49%
GRIZZLY 25-36HWDEVON ENERGY WILLISTON, L.L.C.Active (A)4,760 ft49%
MANDAREE SOUTH 25-36HZDEVON ENERGY WILLISTON, L.L.C.Active (A)4,751 ft48%
MANDAREE SOUTH 25-36HTDEVON ENERGY WILLISTON, L.L.C.Active (A)4,747 ft48%
GRIZZLY 25-36HXDEVON ENERGY WILLISTON, L.L.C.Active (A)4,728 ft48%

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 15958Case 13680Pooled all interests in the unitZENERGY OPERATING CO., LLC
  2. Order 19211Case 16943Listed the unit in a pool zone table, 3 wells allowedHELIS OIL AND GAS CO., LLC
  3. Order 19995Case 17725Established the spacing unit, 3 wells allowedWPX 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

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