BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

2,560-acre Bakken spacing unit

T155N R100W sections 5, 6, 7, 8

Spacing unitCow Creek-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T155N R100W sections 5, 6, 7, 8
Pool
Cow Creek-Bakken
Zone
Zone IV
County
Williams County
Surveyed wells inside
16
Most wells operated by
DEVON ENERGY WILLISTON, L.L.C.
Unit id
dsu-bda39e6d5cb644a75d5d
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
7.56 two-mile laterals per 1,280 acres
Density drilled so far
7.94 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

TUFTO 6-7-18-19F 4TFHFOLVAG 5-8 4TFHFOLVAG 5-8 2TFHFOLVAG 5-8 3HTUFTO 6-7-18-19F 3HTUFTO 6-7-18-19F 2TFHTUFTO 6-7-18-19F 1HFOLVAG 5-8 XW 1TFHFOLVAG 5-8 #6TFHFOLVAG 5-8 #5HTUFTO 6-7-18-19F 5HFOLVAG 5-8 8TFHFOLVAG 5-8 1HFOLVAG 5-8 XE #1HFOLVAG 5-8 7HL. TUFTO 7-6 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
TUFTO 6-7-18-19F 4TFHDEVON ENERGY WILLISTON, L.L.C.Drilling (DRL)10,813 ft50%
FOLVAG 5-8 4TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)10,719 ft100%
FOLVAG 5-8 2TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)10,610 ft100%
FOLVAG 5-8 3HDEVON ENERGY WILLISTON, L.L.C.Active (A)10,399 ft100%
TUFTO 6-7-18-19F 3HDEVON ENERGY WILLISTON, L.L.C.Drilling (DRL)10,383 ft48%
TUFTO 6-7-18-19F 2TFHDEVON ENERGY WILLISTON, L.L.C.Drilling (DRL)10,347 ft53%
TUFTO 6-7-18-19F 1HDEVON ENERGY WILLISTON, L.L.C.Drilling (DRL)10,338 ft50%
FOLVAG 5-8 XW 1TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)10,285 ft100%
FOLVAG 5-8 #6TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)10,244 ft100%
FOLVAG 5-8 #5HDEVON ENERGY WILLISTON, L.L.C.Active (A)10,237 ft100%
TUFTO 6-7-18-19F 5HDEVON ENERGY WILLISTON, L.L.C.Drilling (DRL)10,225 ft50%
FOLVAG 5-8 8TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)10,207 ft100%
FOLVAG 5-8 1HDEVON ENERGY WILLISTON, L.L.C.Active (A)10,190 ft100%
FOLVAG 5-8 XE #1HDEVON ENERGY WILLISTON, L.L.C.Active (A)10,152 ft100%
FOLVAG 5-8 7HDEVON ENERGY WILLISTON, L.L.C.Active (A)10,074 ft100%
L. TUFTO 7-6 1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,719 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 22307Case 20000Designated the spacing unitLIBERTY RESOURCES LLC
  2. Order 24868Case 22534Established the spacing unitSTATOIL OIL AND GAS LP
  3. Order 25243Case 22911Pooled all interests in the unitSTATOIL OIL & GAS LP
  4. Order 34491Case 31755Designated the spacing 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

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