BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

640-acre Bakken spacing unit

T151N R91W section 13

Spacing unit3 wells allowed · order 35934Parshall-Bakken

Unit facts

Formation
Bakken
Acres
640
Type
Spacing unit
Land described
T151N R91W section 13
Pool
Parshall-Bakken
Zone
Zone V
County
Mountrail County
Surveyed wells inside
7
Most wells operated by
EOG Resources
Unit id
dsu-949f31e5c363a12be1ea
Wells allowed by the latest linked order
3
Wells assigned to this unit
2
Pending permits inside
0
Balance under the allowance
-4
First linked order
Feb 3, 2010
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
8 two-mile laterals per 1,280 acres
Density drilled so far
5.15 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. 2 more would fit the density but not the spacing rule. 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 103-13HLIBERTY 4-13HLIBERTY 114-1311HLIBERTY 45-1311HLIBERTY 26-1319HLIBERTY 44-1311HLIBERTY 35-1413H1 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 103-13HEOG RESOURCES, INC.Active (A)5,707 ft100%
LIBERTY 4-13HEOG RESOURCES, INC.Active (A)5,419 ft100%
LIBERTY 114-1311HEOG RESOURCES, INC.Active (A)4,573 ft42%
LIBERTY 45-1311HEOG RESOURCES, INC.Active (A)3,556 ft36%
LIBERTY 26-1319HEOG RESOURCES, INC.Active (A)2,850 ft30%
LIBERTY 44-1311HEOG RESOURCES, INC.Active (A)2,669 ft29%
LIBERTY 35-1413HEOG RESOURCES, INC.Active (A)2,383 ft50%

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 14127Case 11939Established the spacing unit, 3 wells allowedEOG RESOURCES, INC.
  2. Order 15976Case 13698Pooled all interests in the unitEOG RESOURCES, INC.
  3. Order 16096Case 13812Established the spacing unit, 3 wells allowedEOG RESOURCES, INC.
  4. Order 35019Case 32264Designated the spacing unit, 6 wells allowedIRON OIL OPERATING, LLC
  5. Order 35019Case 32264Listed the unit in a pool zone table, 3 wells allowedIRON OIL 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

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