BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

2,560-acre Bakken spacing unit

T155N R101W sections 25, 26, 35, 36

Spacing unitTodd-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T155N R101W sections 25, 26, 35, 36
Pool
Todd-Bakken
Zone
Zone VIII
County
Williams County
Surveyed wells inside
17
Most wells operated by
DEVON ENERGY WILLISTON, L.L.C.
Unit id
dsu-2555f34256fddd3db001
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
7.33 two-mile laterals per 1,280 acres
Density drilled so far
7.88 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

HEEN 26-35 #8TFHJAROLD 25-36 2TFHJAROLD 25-36 3TFHJAROLD 25-36 7HJAROLD 25-36 #8TFHJAROLD 25-36 5HJAROLD 25-36 6TFHJAROLD 25-36 XW 1TFHHEEN 26-35 #6TFHJAROLD 25-36 4HHEEN 26-35 1-HHEEN 26-35 #2HHEEN 26-35 3TFHHEEN 26-35 #7HJAROLD 25-36 1HHEEN 26-35 #4TFHHEEN 26-35 #5H1 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
HEEN 26-35 #8TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)11,031 ft100%
JAROLD 25-36 2TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)10,309 ft100%
JAROLD 25-36 3TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)10,199 ft100%
JAROLD 25-36 7HDEVON ENERGY WILLISTON, L.L.C.Active (A)10,047 ft100%
JAROLD 25-36 #8TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,957 ft100%
JAROLD 25-36 5HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,944 ft100%
JAROLD 25-36 6TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,932 ft100%
JAROLD 25-36 XW 1TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,868 ft100%
HEEN 26-35 #6TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,815 ft100%
JAROLD 25-36 4HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,645 ft100%
HEEN 26-35 1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,571 ft100%
HEEN 26-35 #2HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,507 ft100%
HEEN 26-35 3TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,470 ft100%
HEEN 26-35 #7HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,438 ft100%
JAROLD 25-36 1HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,407 ft100%
HEEN 26-35 #4TFHDEVON ENERGY WILLISTON, L.L.C.Inactive (IA)9,382 ft100%
HEEN 26-35 #5HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,154 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 25003Case 22668Established the spacing unitSTATOIL OIL AND GAS LP
  2. Order 25377Case 23044Pooled all interests in the unitSTATOIL OIL & GAS LP
  3. Order 23690Case 21379Designated the spacing unitCONTINENTAL RESOURCES, INC.
  4. Order 32450Case 29845Designated the spacing unitOASIS PETROLEUM NORTH AMERICA 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

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