BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

640-acre Bakken spacing unit

T151N R91W section 1

Spacing unit3 wells allowed · order 35934Parshall-Bakken

Unit facts

Formation
Bakken
Acres
640
Type
Spacing unit
Land described
T151N R91W section 1
Pool
Parshall-Bakken
Zone
Zone V
County
Mountrail County
Surveyed wells inside
7
Most wells operated by
EOG Resources
Unit id
dsu-5e7fb662f0088722ad38
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
7.89 two-mile laterals per 1,280 acres
Density drilled so far
5.69 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

FERTILE 86-0701HLIBERTY 102-01HLIBERTY 8-01HFERTILE 84-0701HLIBERTY 25-0107HLIBERTY 106-0107HFERTILE 85-0701H1 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
FERTILE 86-0701HEOG RESOURCES, INC.Active (A)6,137 ft51%
LIBERTY 102-01HEOG RESOURCES, INC.Plugged and abandoned (PA)5,546 ft100%
LIBERTY 8-01HEOG RESOURCES, INC.Active (A)4,999 ft100%
FERTILE 84-0701HEOG RESOURCES, INC.Active (A)4,753 ft40%
LIBERTY 25-0107HEOG RESOURCES, INC.Active (A)3,661 ft36%
LIBERTY 106-0107HEOG RESOURCES, INC.Inactive (IA)2,832 ft30%
FERTILE 85-0701HEOG RESOURCES, INC.Active (A)2,216 ft21%

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 15548Case 13271Pooled all interests in the unitEOG RESOURCES, INC.
  3. Order 16096Case 13812Established the spacing unit, 3 wells allowedEOG RESOURCES, INC.
  4. Order 27902Case 25499Designated the spacing unit, 6 wells allowedEOG RESOURCES, INC.
  5. Order 27902Case 25499Listed the unit in a pool zone table, 3 wells allowedEOG RESOURCES, INC.
  6. Order 31169Case 28627Designated the spacing unit, 6 wells allowedWHITING OIL AND GAS CORP.
  7. Order 31169Case 28627Listed the unit in a pool zone table, 3 wells allowedWHITING OIL AND GAS CORP.

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

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