BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

2,560-acre Bakken spacing unit

T152N R93W sections 25, 36

Spacing unit2 wells allowed · order 34203Big Bend-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T152N R93W sections 25, 36
Pool
Big Bend-Bakken
Zone
Zone XLV
County
Mountrail County
Surveyed wells inside
29
Most wells operated by
Slawson
Unit id
dsu-b2eaed57783bf695741f
Wells allowed by the latest linked order
2
Wells assigned to this unit
1
Pending permits inside
0
Balance under the allowance
-27
First linked order
Mar 10, 2014
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
9.4 two-mile laterals per 1,280 acres
Density drilled so far
8.73 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

Whirlcat Federal 5-31-19TFHWhirlcat Federal 4-31-19TFHCougar Federal 1 SLHRainmaker Federal 8-25-36TFHRainmaker Federal 5-25-36TFHRainmaker Federal 6-25-36TFHRainmaker Federal 7-25-36TFHRAINMAKER {FEDERAL} 10-36-25TF2HMinx Federal 1 SLHWHIRLWIND 1-31HZephyr Federal 2-36HWHIRLWIND 7-31TFHHowitzer 3-25HHOWITZER 1-25HZEPHYR FEDERAL 3-36HHowitzer 4-25HZEPHYR FEDERAL 4-36HZEPHYR 1-36HWHIRLWIND 2-31HWHIRLWIND 3-31HHOWITZER 2-25HMACCOUGAR 4-30-19TFHMACCOUGAR 3-30-19HWHIRLWIND 6-31TFHCOUGAR FEDERAL 1-30HMACCOUGAR 2-30-19HMACCOUGAR 5-30-19TFHJericho Federal 1 SLHHOWITZER {FEDERAL} 5 SLTFH1 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
Whirlcat Federal 5-31-19TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)10,386 ft67%
Whirlcat Federal 4-31-19TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)10,295 ft67%
Cougar Federal 1 SLHSLAWSON EXPLORATION COMPANY, INC.Active (A)10,262 ft100%
Rainmaker Federal 8-25-36TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)10,262 ft100%
Rainmaker Federal 5-25-36TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)10,225 ft100%
Rainmaker Federal 6-25-36TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)10,209 ft100%
Rainmaker Federal 7-25-36TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)10,205 ft100%
RAINMAKER {FEDERAL} 10-36-25TF2HSLAWSON EXPLORATION COMPANY, INC.Active (A)10,161 ft100%
Minx Federal 1 SLHSLAWSON EXPLORATION COMPANY, INC.Active (A)5,834 ft78%
WHIRLWIND 1-31HSLAWSON EXPLORATION COMPANY, INC.Active (A)5,211 ft96%
Zephyr Federal 2-36HSLAWSON EXPLORATION COMPANY, INC.Active (A)5,120 ft100%
WHIRLWIND 7-31TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)5,093 ft100%
Howitzer 3-25HSLAWSON EXPLORATION COMPANY, INC.Active (A)5,067 ft100%
HOWITZER 1-25HSLAWSON EXPLORATION COMPANY, INC.Active (A)5,057 ft100%
ZEPHYR FEDERAL 3-36HSLAWSON EXPLORATION COMPANY, INC.Active (A)5,041 ft100%
Howitzer 4-25HSLAWSON EXPLORATION COMPANY, INC.Active (A)5,009 ft100%
ZEPHYR FEDERAL 4-36HSLAWSON EXPLORATION COMPANY, INC.Active (A)5,000 ft100%
ZEPHYR 1-36HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,996 ft100%
WHIRLWIND 2-31HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,937 ft100%
WHIRLWIND 3-31HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,911 ft100%
HOWITZER 2-25HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,893 ft100%
MACCOUGAR 4-30-19TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)4,841 ft49%
MACCOUGAR 3-30-19HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,799 ft49%
WHIRLWIND 6-31TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)4,717 ft100%
COUGAR FEDERAL 1-30HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,622 ft100%
MACCOUGAR 2-30-19HSLAWSON EXPLORATION COMPANY, INC.Active (A)4,622 ft48%
MACCOUGAR 5-30-19TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)4,322 ft47%
Jericho Federal 1 SLHSLAWSON EXPLORATION COMPANY, INC.Active (A)2,287 ft32%
HOWITZER {FEDERAL} 5 SLTFHSLAWSON EXPLORATION COMPANY, INC.Active (A)1,974 ft22%

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 22418Case 20113Established the spacing unit, 1 well allowedSLAWSON EXPLORATION CO., INC.
  2. Order 22418Case 20113Designated the spacing unitSLAWSON EXPLORATION CO., INC.
  3. Order 24511Case 22177Designated the spacing unit, 2 wells allowedSLAWSON EXPLORATION CO., INC.
  4. Order 24606Case 22272Established the spacing unit, 2 wells allowedSLAWSON EXPLORATION CO., INC.
  5. Order 31948Case 29378Pooled all interests in the unitSLAWSON 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

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