BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

1,280-acre Bakken spacing unit

T158N R95W sections 21, 28

Spacing unit2 wells allowed · order 33944Mcgregor-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T158N R95W sections 21, 28
Pool
Mcgregor-Bakken
Zone
Zone IV
County
Williams County
Surveyed wells inside
11
Most wells operated by
Silver Hill Energy
Unit id
dsu-f0a3243cfbfd9e19aae5
Wells allowed by the latest linked order
2
Wells assigned to this unit
11
Pending permits inside
0
Balance under the allowance
-9
First linked order
Aug 25, 2011
Review note
over_allowance
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
5.5 two-mile laterals per 1,280 acres
Density drilled so far
10.59 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. 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

ND STATE 158-95-21-28-2TFHND STATE 158-95-21-28-5TFHND STATE 158-95-21-28-6TFHND STATE 158-95-21-28-5MBHND STATE 158-95-21-28-2MBHND STATE 158-95-21-28-3TFHND STATE 158-95-21-28-1MBHMCGREGOR 24-16H-2128-15895-MBND STATE 158-95-21-28-3MBHND STATE 158-95-21-28-4TFHHOVE 11-21H-2128-15895-TF1 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
ND STATE 158-95-21-28-2TFHSilver Hill Energy Operating, LLCInactive (IA)10,723 ft100%
ND STATE 158-95-21-28-5TFHSilver Hill Energy Operating, LLCActive (A)10,366 ft100%
ND STATE 158-95-21-28-6TFHSilver Hill Energy Operating, LLCActive (A)10,354 ft100%
ND STATE 158-95-21-28-5MBHSilver Hill Energy Operating, LLCActive (A)10,341 ft100%
ND STATE 158-95-21-28-2MBHSilver Hill Energy Operating, LLCActive (A)10,326 ft100%
ND STATE 158-95-21-28-3TFHSilver Hill Energy Operating, LLCInactive (IA)10,286 ft100%
ND STATE 158-95-21-28-1MBHSilver Hill Energy Operating, LLCActive (A)10,200 ft100%
MCGREGOR 24-16H-2128-15895-MBSilver Hill Energy Operating, LLCActive (A)10,165 ft100%
ND STATE 158-95-21-28-3MBHSilver Hill Energy Operating, LLCActive (A)10,092 ft100%
ND STATE 158-95-21-28-4TFHSilver Hill Energy Operating, LLCActive (A)10,069 ft100%
HOVE 11-21H-2128-15895-TFSilver Hill Energy Operating, LLCActive (A)9,652 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 16269Case 13996Established the spacing unit, 1 well allowedSEQUEL ENERGY, LLC
  2. Order 16269Case 13996Designated the spacing unitSEQUEL ENERGY, LLC
  3. Order 16704Case 14426Designated the spacing unitXTO ENERGY INC.
  4. Order 20695Case 18410Designated the spacing unit, 6 wells allowedSEQUEL ENERGY, LLC
  5. Order 20696Case 18411Established the spacing unit, 6 wells allowedSEQUEL ENERGY, LLC
  6. Order 21429Case 19126Designated the spacing unit, 2 wells allowedXTO ENERGY INC.
  7. Order 24508Case 22174Established the spacing unit, 2 wells allowedLIBERTY RESOURCES LLC
  8. Order 24272Case 21939Pooled all interests in the unitSEQUEL ENERGY, 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

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