BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T151N R93W sections 1, 12

Spacing unit9 wells allowed · order 34203Big Bend-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T151N R93W sections 1, 12
Pool
Big Bend-Bakken
Zone
Zone XXVI
County
Mountrail County
Surveyed wells inside
10
Most wells operated by
Slawson
Unit id
dsu-74472862ed4c0943bc6d
Wells allowed by the latest linked order
9
Wells assigned to this unit
9
Pending permits inside
0
Balance under the allowance
-1
First linked order
Dec 23, 2008
Laterals that still fit (Nov 2026 method)
1 (0.95 two-mile equivalents)
Neighbourhood target density
9.33 two-mile laterals per 1,280 acres
Density drilled so far
8.52 per 1,280 acres

Room to drill: 1 lateral 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

Stallion 5-1-12TFHSTALLION 7-1-12HSTALLION 3-1-12HSTALLION FEDERAL 5 SLTFHSTALLION 6-1-12TFHSTALLION 8-1-12TFHStallion 4-1-12TFHSTALLION 2-1-12HSTALLION 1-1-12HSNIPER {FEDERAL} 1 SLH1 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
Stallion 5-1-12TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)10,021 ft100%
STALLION 7-1-12HSLAWSON EXPLORATION COMPANY, INC.Active (A)9,943 ft100%
STALLION 3-1-12HSLAWSON EXPLORATION COMPANY, INC.Active (A)9,908 ft100%
STALLION FEDERAL 5 SLTFHSLAWSON EXPLORATION COMPANY, INC.Active (A)9,904 ft100%
STALLION 6-1-12TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)9,881 ft100%
STALLION 8-1-12TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)9,867 ft100%
Stallion 4-1-12TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)9,843 ft100%
STALLION 2-1-12HSLAWSON EXPLORATION COMPANY, INC.Active (A)9,403 ft100%
STALLION 1-1-12HSLAWSON EXPLORATION COMPANY, INC.Active (A)9,322 ft100%
SNIPER {FEDERAL} 1 SLHSLAWSON EXPLORATION COMPANY, INC.Active (A)1,464 ft14%

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 12629Case 10683Established the spacing unitWINDSOR ENERGY GROUP, LLC
  2. Order 12898Case 10898Established the spacing unitMARATHON OIL CO.
  3. Order 13558Case 11439Designated the spacing unit
  4. Order 14236Case 11923Pooled all interests in the unitSLAWSON EXPLORATION CO., INC.
  5. Order 14971Case 12710Designated the spacing unitMARATHON OIL CO.
  6. Order 15257Case 12990Designated the spacing unit, 6 wells allowedMARATHON OIL CO.
  7. Order 15445Case 13177Established the spacing unit, 6 wells allowedSLAWSON EXPLORATION CO., INC.
  8. Order 19546Case 17277Pooled all interests in the unitSLAWSON EXPLORATION CO., INC.
  9. Order 24511Case 22177Designated the spacing unit, 9 wells allowedSLAWSON EXPLORATION CO., INC.
  10. Order 24606Case 22272Established the spacing unit, 9 wells allowedSLAWSON EXPLORATION CO., 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

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