BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

2,560-acre Bakken spacing unit

T155N R92W sections 25, 26, 35, 36

Spacing unit2 wells allowed · order 35988Alger-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T155N R92W sections 25, 26, 35, 36
Pool
Alger-Bakken
Zone
Zone XXIV
County
Mountrail County
Surveyed wells inside
13
Most wells operated by
Slawson
Unit id
dsu-fdfe38f799f7b2386343
Wells allowed by the latest linked order
2
Wells assigned to this unit
0
Pending permits inside
0
Balance under the allowance
-11
First linked order
Apr 11, 2025
Laterals that still fit (Nov 2026 method)
4 (3.81 two-mile equivalents)
Neighbourhood target density
8.85 two-mile laterals per 1,280 acres
Density drilled so far
3.61 per 1,280 acres

Room to drill: 4 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

CLIFFORD BAKKE 26-35 #3HCLIFFORD BAKKE 26-35 #4HCLIFFORD BAKKE 26-35 #2HCLIFFORD BAKKE 26-35 1-HADIX 25 1-HATHENA 5-36TFHATHENA 1-36HATHENA 2-36HATHENA 6-36TFHATHENA 4-36TFHCLIFFORD 14-24H-25ATHENA 3-36HCLIFF 12-24H-251 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
CLIFFORD BAKKE 26-35 #3HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,689 ft100%
CLIFFORD BAKKE 26-35 #4HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,668 ft100%
CLIFFORD BAKKE 26-35 #2HDEVON ENERGY WILLISTON, L.L.C.Inactive (IA)9,530 ft100%
CLIFFORD BAKKE 26-35 1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,528 ft100%
ADIX 25 1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,649 ft100%
ATHENA 5-36TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)4,417 ft100%
ATHENA 1-36HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,389 ft100%
ATHENA 2-36HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,330 ft100%
ATHENA 6-36TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)4,233 ft100%
ATHENA 4-36TFHSLAWSON EXPLORATION COMPANY, INC.Inactive (IA)4,215 ft100%
CLIFFORD 14-24H-25LIME ROCK RESOURCES III-A, L.P.Active (A)4,118 ft72%
ATHENA 3-36HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,108 ft100%
CLIFF 12-24H-25LIME ROCK RESOURCES III-A, L.P.Active (A)1,881 ft29%

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 34049Case 31349Established the spacing unit, 2 wells allowedGRAYSON MILL OPERATING, LLC
  2. Order 34071Case 31371Pooled 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

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