BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T150N R92W sections 2, 11

Spacing unit14 wells allowed · order 35220Van Hook-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T150N R92W sections 2, 11
Pool
Van Hook-Bakken
Zone
Zone IV
County
Mountrail County
Surveyed wells inside
8
Most wells operated by
Devon Energy
Unit id
dsu-019cf3fb8d34eec02d73
Wells allowed by the latest linked order
14
Wells assigned to this unit
7
Pending permits inside
0
Balance under the allowance
+6
First linked order
Feb 3, 2010
Laterals that still fit (Nov 2026 method)
2 (1.91 two-mile equivalents)
Neighbourhood target density
8.81 two-mile laterals per 1,280 acres
Density drilled so far
7.22 per 1,280 acres

Room to drill: 2 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

MASON 2-11HAMASON 2-11HWRMASON 2-11HXGEORGE EVANS 11-2HDGEORGE EVANS 11-2HCGEORGE EVANS 11-2HZState of ND 10-3HIMASON 2-11H1 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
MASON 2-11HADEVON ENERGY WILLISTON, L.L.C.Active (A)9,908 ft100%
MASON 2-11HWRDEVON ENERGY WILLISTON, L.L.C.Active (A)9,757 ft100%
MASON 2-11HXDEVON ENERGY WILLISTON, L.L.C.Active (A)9,702 ft100%
GEORGE EVANS 11-2HDDEVON ENERGY WILLISTON, L.L.C.Active (A)9,689 ft100%
GEORGE EVANS 11-2HCDEVON ENERGY WILLISTON, L.L.C.Active (A)9,541 ft100%
GEORGE EVANS 11-2HZDEVON ENERGY WILLISTON, L.L.C.Plugged and abandoned (PA)9,538 ft100%
State of ND 10-3HIDEVON ENERGY WILLISTON, L.L.C.Active (A)9,232 ft93%
MASON 2-11HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,176 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 14127Case 11939Designated the spacing unitEOG RESOURCES, INC.
  2. Order 14136Case 11948Established the spacing unit, 1 well allowedZENERGY OPERATING CO., LLC
  3. Order 17306Case 15056Designated the spacing unitSLAWSON EXPLORATION CO., INC.
  4. Order 17390Case 15142Pooled all interests in the unitDAKOTA-3 E&P CO., LLC
  5. Order 17851Case 15605Established the spacing unit, 7 wells allowedDAKOTA-3 E&P CO., LLC
  6. Order 24024Case 21670Established the spacing unit, 14 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

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