BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

2,240-acre Bakken spacing unit

T151N R91W sections 33, 34, 35, 36

Spacing unit4 wells allowed · order 35934Parshall-Bakken

Unit facts

Formation
Bakken
Acres
2,240
Type
Spacing unit
Land described
T151N R91W sections 33, 34, 35, 36
Pool
Parshall-Bakken
Zone
Zone LIX
County
Mountrail County
Surveyed wells inside
7
Most wells operated by
EOG Resources
Unit id
dsu-030551bde39c8667119c
Wells allowed by the latest linked order
4
Wells assigned to this unit
4
Pending permits inside
0
Balance under the allowance
-3
First linked order
Feb 21, 2020
Laterals that still fit (Nov 2026 method)
2 (3.4 two-mile equivalents)
Neighbourhood target density
8.14 two-mile laterals per 1,280 acres
Density drilled so far
5.04 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

Liberty LR 72-3633HLiberty LR 132-3633HLiberty LR 131-3633HLiberty LR 73-3633HLIBERTY LR 16-36HLIBERTY LR 21-36HLIBERTY 10-36H1 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
Liberty LR 72-3633HEOG RESOURCES, INC.Active (A)17,654 ft100%
Liberty LR 132-3633HEOG RESOURCES, INC.Active (A)17,569 ft100%
Liberty LR 131-3633HEOG RESOURCES, INC.Active (A)17,149 ft100%
Liberty LR 73-3633HEOG RESOURCES, INC.Active (A)17,035 ft100%
LIBERTY LR 16-36HEOG RESOURCES, INC.Active (A)12,762 ft100%
LIBERTY LR 21-36HEOG RESOURCES, INC.Active (A)9,831 ft100%
LIBERTY 10-36HEOG RESOURCES, INC.Inactive (IA)1,552 ft35%

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 30598Case 27556Established the spacing unit, 8 wells allowedSLAWSON EXPLORATION CO., INC.
  2. Order 33344Case 30694Designated the spacing unit, 4 wells allowedEOG RESOURCES, INC.
  3. Order 33577Case 30917Established the spacing unit, 4 wells allowedEOG RESOURCES, INC.
  4. Order 33577Case 30917Terminated the spacing unitEOG RESOURCES, INC.
  5. Order 33661Case 30989Designated the spacing unit, 4 wells allowedIRON OIL OPERATING, LLC
  6. Order 33597Case 30937Pooled all interests in the unitEOG RESOURCES, INC.

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.