BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

1,920-acre Bakken spacing unit

T155N R103W sections 10, 11, 12

Spacing unit4 wells allowed · order 36219Squires-Bakken

Unit facts

Formation
Bakken
Acres
1,920
Type
Spacing unit
Land described
T155N R103W sections 10, 11, 12
Pool
Squires-Bakken
Zone
Zone XIII
County
Williams County
Surveyed wells inside
7
Most wells operated by
Devon Energy
Unit id
dsu-517a6092004cd710a94d
Wells allowed by the latest linked order
4
Wells assigned to this unit
4
Pending permits inside
0
Balance under the allowance
-3
First linked order
May 22, 2025
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
4.88 two-mile laterals per 1,280 acres
Density drilled so far
5.02 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

THUNDERBOLT 10-12 1HTHUNDERBOLT 10-12 4HTHUNDERBOLT 10-12 2HTHUNDERBOLT 10-12 3HKARI 10-3 #1HZACREP 2-11 #1HDONALD 12-1 #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
THUNDERBOLT 10-12 1HDEVON ENERGY WILLISTON, L.L.C.Active (A)18,272 ft100%
THUNDERBOLT 10-12 4HDEVON ENERGY WILLISTON, L.L.C.Active (A)15,548 ft100%
THUNDERBOLT 10-12 2HDEVON ENERGY WILLISTON, L.L.C.Active (A)15,493 ft100%
THUNDERBOLT 10-12 3HDEVON ENERGY WILLISTON, L.L.C.Active (A)15,449 ft100%
KARI 10-3 #1HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,349 ft52%
ZACREP 2-11 #1HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,056 ft49%
DONALD 12-1 #1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)4,781 ft45%

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 34320Case 31588Established the spacing unit, 4 wells allowedDEVON ENERGY WILLISTON, L.L.C.
  2. Order 34339Case 31607Pooled all interests in the unitDEVON ENERGY WILLISTON, L.L.C.

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

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