BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T151N R92W section 36

Spacing unit3 wells allowed · order 34203Big Bend-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T151N R92W section 36
Pool
Big Bend-Bakken
Zone
Zone XX
County
Mountrail County
Surveyed wells inside
10
Most wells operated by
Slawson
Unit id
dsu-1c36efd8d5cc5a601fc6
Wells allowed by the latest linked order
3
Wells assigned to this unit
3
Pending permits inside
0
Balance under the allowance
-7
First linked order
Sep 25, 2009
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
8.52 two-mile laterals per 1,280 acres
Density drilled so far
9.25 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

SERPENT FEDERAL 8-36-32HSERPENT FEDERAL 1-36-31HSERPENT FEDERAL 3-36-32HSERPENT FEDERAL 6-36-32TFHSERPENT FEDERAL 7-36-32TFHSERPENT FEDERAL 2-36-31HSERPENT (FEDERAL) 4 SLTFHSERPENT FEDERAL 5-36-32TFHSERPENT (FEDERAL) 4-36-31TFHOSPREY FEDERAL 2 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
SERPENT FEDERAL 8-36-32HSLAWSON EXPLORATION COMPANY, INC.Active (A)11,013 ft68%
SERPENT FEDERAL 1-36-31HSLAWSON EXPLORATION COMPANY, INC.Active (A)10,768 ft100%
SERPENT FEDERAL 3-36-32HSLAWSON EXPLORATION COMPANY, INC.Active (A)10,148 ft67%
SERPENT FEDERAL 6-36-32TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)10,126 ft68%
SERPENT FEDERAL 7-36-32TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)10,121 ft67%
SERPENT FEDERAL 2-36-31HSLAWSON EXPLORATION COMPANY, INC.Active (A)10,096 ft100%
SERPENT (FEDERAL) 4 SLTFHSLAWSON EXPLORATION COMPANY, INC.Active (A)10,093 ft67%
SERPENT FEDERAL 5-36-32TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)10,049 ft66%
SERPENT (FEDERAL) 4-36-31TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)9,847 ft100%
OSPREY FEDERAL 2 SLHSLAWSON EXPLORATION COMPANY, INC.Active (A)3,836 ft27%

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 13496Case 11392Designated the spacing unitQUESTAR EXPL. AND PROD. CO.
  2. Order 14127Case 11939Designated the spacing unit, 2 wells allowedEOG RESOURCES, INC.
  3. Order 15446Case 13178Established the spacing unit, 6 wells allowedSLAWSON EXPLORATION CO., INC.
  4. Order 18908Case 16639Designated the spacing unit, 6 wells allowedMARATHON OIL CO.
  5. Order 18903Case 16634Established the spacing unit, 1 well allowedWINDSOR ENERGY GROUP, LLC
  6. Order 18903Case 16634Designated the spacing unitWINDSOR ENERGY GROUP, LLC
  7. Order 19542Case 17273Pooled all interests in the unitSLAWSON EXPLORATION CO., INC.
  8. Order 20443Case 18174Established the spacing unit, 6 wells allowedSLAWSON EXPLORATION CO., INC.
  9. Order 22209Case 19902Designated the spacing unit, 6 wells allowedWPX ENERGY WILLISTON, LLC
  10. Order 22702Case 20395Designated the spacing unit, 6 wells allowedEOG RESOURCES, INC.
  11. Order 21993Case 19687Established the spacing unit, 7 wells allowedSLAWSON EXPLORATION CO., INC.
  12. Order 22417Case 20112Designated the spacing unit, 7 wells allowedSLAWSON EXPLORATION CO., INC.
  13. Order 23316Case 21010Designated the spacing unit, 7 wells allowedSLAWSON EXPLORATION CO., INC.
  14. Order 24511Case 22177Designated the spacing unit, 10 wells allowedSLAWSON EXPLORATION CO., INC.
  15. Order 24606Case 22272Established the spacing unit, 10 wells allowedSLAWSON EXPLORATION CO., INC.
  16. Order 27841Case 25438Established the spacing unit, 3 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

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