BBakken SubsurfaceNorth Dakota well index

Spacing unit · McKenzie County

1,920-acre Bakken spacing unit

T151N R102W sections 20, 21, 22

Spacing unit5 wells allowed · order 35660Elk-Bakken

Unit facts

Formation
Bakken
Acres
1,920
Type
Spacing unit
Land described
T151N R102W sections 20, 21, 22
Pool
Elk-Bakken
Zone
Zone VIII
County
McKenzie County
Surveyed wells inside
8
Most wells operated by
Devon Energy
Unit id
dsu-a63f414d443c0fedaf59
Wells allowed by the latest linked order
5
Wells assigned to this unit
4
Pending permits inside
0
Balance under the allowance
-3
First linked order
Nov 17, 2023
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
4.9 two-mile laterals per 1,280 acres
Density drilled so far
5.23 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

ALFRED SOUTH 20-22 5HALFRED SOUTH 20-22 3HALFRED SOUTH 20-22 4HALFRED SOUTH 20-22 2HLYLE 21-16 #1-HPAPINEAU TRUST 17-20 1-HMRACHEK 15-22 #1HMRACHEK TRUST 22-15 #1TFH1 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
ALFRED SOUTH 20-22 5HDEVON ENERGY WILLISTON, L.L.C.Active (A)15,565 ft100%
ALFRED SOUTH 20-22 3HDEVON ENERGY WILLISTON, L.L.C.Active (A)15,551 ft100%
ALFRED SOUTH 20-22 4HDEVON ENERGY WILLISTON, L.L.C.Active (A)15,500 ft100%
ALFRED SOUTH 20-22 2HDEVON ENERGY WILLISTON, L.L.C.Active (A)15,498 ft100%
LYLE 21-16 #1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,659 ft53%
PAPINEAU TRUST 17-20 1-HDEVON ENERGY WILLISTON, L.L.C.Inactive (IA)5,435 ft53%
MRACHEK 15-22 #1HDEVON ENERGY WILLISTON, L.L.C.Active (A)4,856 ft37%
MRACHEK TRUST 22-15 #1TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)4,422 ft47%

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 32841Case 30231Designated the spacing unit, 5 wells allowedHESS BAKKEN INVESTMENTS II, LLC
  2. Order 33064Case 30451Established the spacing unit, 5 wells allowedGRAYSON MILL OPERATING, LLC
  3. Order 33023Case 30410Pooled all interests in the unitGRAYSON MILL OPERATING, 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

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