BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

2,560-acre Bakken spacing unit

T154N R101W sections 5, 6, 7, 8

Spacing unitTodd-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T154N R101W sections 5, 6, 7, 8
Pool
Todd-Bakken
Zone
Zone VIII
County
Williams County
Surveyed wells inside
15
Most wells operated by
DEVON ENERGY WILLISTON, L.L.C.
Unit id
dsu-602b4f2a9869037dd0c7
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
6.59 two-mile laterals per 1,280 acres
Density drilled so far
7.15 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

FIELD TRUST 7-6 5TFHDAVE ARNSON 5-8 5HFIELD TRUST 7-6 #7HFIELD TRUST 7-6 #8TFHDAVE ARNSON 8-5 XW 1HORVILLE 4-9 XW 1HDAVE ARNSON 08-05 3HFIELD TRUST 7-6 4HDAVE ARNSON 5-8 4HDAVE ARNSON 08-05 2HFIELD TRUST 7-6 3TFHFIELD TRUST 7-6 1-HFIELD TRUST 7-6 6HDAVE ARNSON 8-5 1-HFIELD TRUST 7-6 #2TFH1 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
FIELD TRUST 7-6 5TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)10,985 ft100%
DAVE ARNSON 5-8 5HDEVON ENERGY WILLISTON, L.L.C.Active (A)10,715 ft100%
FIELD TRUST 7-6 #7HDEVON ENERGY WILLISTON, L.L.C.Inactive (IA)10,631 ft100%
FIELD TRUST 7-6 #8TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)10,495 ft100%
DAVE ARNSON 8-5 XW 1HDEVON ENERGY WILLISTON, L.L.C.Active (A)10,291 ft100%
ORVILLE 4-9 XW 1HDEVON ENERGY WILLISTON, L.L.C.Active (A)10,281 ft100%
DAVE ARNSON 08-05 3HDEVON ENERGY WILLISTON, L.L.C.Active (A)10,272 ft100%
FIELD TRUST 7-6 4HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,657 ft100%
DAVE ARNSON 5-8 4HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,602 ft100%
DAVE ARNSON 08-05 2HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,551 ft100%
FIELD TRUST 7-6 3TFHDEVON ENERGY WILLISTON, L.L.C.Inactive (IA)9,542 ft100%
FIELD TRUST 7-6 1-HDEVON ENERGY WILLISTON, L.L.C.Abandoned (AB)9,451 ft100%
FIELD TRUST 7-6 6HDEVON ENERGY WILLISTON, L.L.C.Inactive (IA)9,415 ft100%
DAVE ARNSON 8-5 1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,383 ft100%
FIELD TRUST 7-6 #2TFHDEVON ENERGY WILLISTON, L.L.C.Abandoned (AB)9,351 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 31933Case 29363Designated the spacing unitGRAYSON MILL OPERATING, LLC
  2. Order 31998Case 29427Established the spacing unitGRAYSON MILL OPERATING, LLC
  3. Order 32009Case 29438Pooled all interests in the unitGRAYSON MILL OPERATING, LLC
  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

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