BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

1,280-acre Bakken spacing unit

T154N R100W sections 23, 26

Spacing unit2 wells allowed · order 31932Avoca-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T154N R100W sections 23, 26
Pool
Avoca-Bakken
Zone
Zone IV
County
Williams County
Surveyed wells inside
6
Most wells operated by
Continental Resources
Unit id
dsu-88833f01d811de8df078
Wells allowed by the latest linked order
2
Wells assigned to this unit
6
Pending permits inside
0
Balance under the allowance
-4
First linked order
Apr 5, 2011
Review note
over_allowance
Laterals that still fit (Nov 2026 method)
2 (1.91 two-mile equivalents)
Neighbourhood target density
8.02 two-mile laterals per 1,280 acres
Density drilled so far
5.79 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

COLLISON 11-23HCOLLISON 10-23H1COLLISON 13-23HSLCOLLISON 9-23H1COLLISON 12-23H1COLLISON 1-23H1 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
COLLISON 11-23HCONTINENTAL RESOURCES, INC.Active (A)10,357 ft100%
COLLISON 10-23H1CONTINENTAL RESOURCES, INC.Active (A)10,271 ft100%
COLLISON 13-23HSLCONTINENTAL RESOURCES, INC.Active (A)10,247 ft100%
COLLISON 9-23H1CONTINENTAL RESOURCES, INC.Active (A)10,244 ft100%
COLLISON 12-23H1CONTINENTAL RESOURCES, INC.Active (A)10,243 ft100%
COLLISON 1-23HCONTINENTAL RESOURCES, INC.Active (A)9,493 ft100%

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 16301Case 14026Established the spacing unit, 1 well allowedCITATION OIL & GAS CORP.
  2. Order 16301Case 14026Designated the spacing unitCITATION OIL & GAS CORP.
  3. Order 16636Case 14359Established the spacing unit, 1 well allowed
  4. Order 16636Case 14359Designated the spacing unit
  5. Order 18112Case 15857Established the spacing unit, 7 wells allowedNEWFIELD PRODUCTION CO.
  6. Order 21268Case 18967Pooled all interests in the unitCONTINENTAL RESOURCES, INC.
  7. Order 24079Case 21750Designated the spacing unit, 7 wells allowed
  8. Order 23692Case 21380Established the spacing unit, 14 wells allowedCONTINENTAL RESOURCES, INC.
  9. Order 28015Case 25607Designated the spacing unit, 14 wells allowedSTATOIL OIL AND GAS LP
  10. Order 31932Case 29362Designated the spacing unit, 2 wells allowedGRAYSON MILL OPERATING, LLC
  11. Order 31932Case 29362Listed the unit in a pool zone table, 14 wells allowedGRAYSON 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

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