BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T155N R92W sections 11, 14

Spacing unit8 wells allowed · order 35988Alger-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T155N R92W sections 11, 14
Pool
Alger-Bakken
Zone
Zone XI
County
Mountrail County
Surveyed wells inside
7
Most wells operated by
Devon Energy
Unit id
dsu-5564a69fac741a1ef406
Wells allowed by the latest linked order
8
Wells assigned to this unit
7
Pending permits inside
4
Balance under the allowance
+1
First linked order
Jun 25, 2010
Laterals that still fit (Nov 2026 method)
2 (1.91 two-mile equivalents)
Neighbourhood target density
8.47 two-mile laterals per 1,280 acres
Density drilled so far
6.65 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

ARVID ANDERSON 14-11 #6HARVID ANDERSON 14-11 #4TFHARVID ANDERSON 14-11 #5HARVID ANDERSON 14-11 #2TFHARVID ANDERSON 14-11 7TFHARVID ANDERSON 14-11 #3HARVID ANDERSON 14-11 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
ARVID ANDERSON 14-11 #6HDEVON ENERGY WILLISTON, L.L.C.Active (A)11,872 ft100%
ARVID ANDERSON 14-11 #4TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,944 ft100%
ARVID ANDERSON 14-11 #5HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,942 ft100%
ARVID ANDERSON 14-11 #2TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,796 ft100%
ARVID ANDERSON 14-11 7TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)9,738 ft100%
ARVID ANDERSON 14-11 #3HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,582 ft100%
ARVID ANDERSON 14-11 1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,512 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 14521Case 12269Designated the spacing unitHESS CORP.
  2. Order 14549Case 12297Established the spacing unit, 1 well allowedBRIGHAM OIL & GAS, L.P.
  3. Order 15558Case 13281Pooled all interests in the unitBRIGHAM OIL & GAS, L.P.
  4. Order 16139Case 13855Designated the spacing unitBRIGHAM OIL & GAS, L.P.
  5. Order 16284Case 14009Designated the spacing unit, 4 wells allowedBRIGHAM OIL & GAS, L.P.
  6. Order 17383Case 15135Established the spacing unit, 4 wells allowedBRIGHAM OIL & GAS, L.P.
  7. Order 17856Case 15610Designated the spacing unit, 8 wells allowedSLAWSON EXPLORATION CO., INC.
  8. Order 18076Case 15821Established the spacing unit, 8 wells allowedBRIGHAM OIL & GAS, L.P.

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.