BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

1,280-acre Bakken spacing unit

T145N R93W sections 30, 31

Spacing unit3 wells allowed · order 33775Bailey-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T145N R93W sections 30, 31
Pool
Bailey-Bakken
Zone
Zone IV
County
Dunn County
Surveyed wells inside
6
Most wells operated by
Burlington / Marathon
Unit id
dsu-7eadec32d3e2a6fd4f54
Wells allowed by the latest linked order
3
Wells assigned to this unit
3
Pending permits inside
0
Balance under the allowance
-3
First linked order
Sep 12, 2007
Laterals that still fit (Nov 2026 method)
4 (3.82 two-mile equivalents)
Neighbourhood target density
9.19 two-mile laterals per 1,280 acres
Density drilled so far
5.1 per 1,280 acres

Room to drill: 4 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

Semerad 11-18HBJORGE 41-18HHELGESON 41-30HGUSTAFSON 31-30HKEVIN BENZ 24-31HClawson 11-18H1 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
Semerad 11-18HMARATHON OIL COMPANYActive (A)10,412 ft50%
BJORGE 41-18HMARATHON OIL COMPANYActive (A)10,400 ft50%
HELGESON 41-30HMARATHON OIL COMPANYActive (A)9,709 ft100%
GUSTAFSON 31-30HMARATHON OIL COMPANYActive (A)9,687 ft100%
KEVIN BENZ 24-31HMARATHON OIL COMPANYActive (A)9,128 ft100%
Clawson 11-18HMARATHON OIL COMPANYActive (A)4,483 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 11318Case 9633Established the spacing unit, 2 wells allowedMARATHON OIL CO.
  2. Order 11318Case 9633Designated the spacing unitMARATHON OIL CO.
  3. Order 13856Case 11701Designated the spacing unitXTO ENERGY INC.
  4. Order 15254Case 12987Pooled all interests in the unitMARATHON OIL CO.
  5. Order 15863Case 13587Established the spacing unit, 4 wells allowedMARATHON OIL CO.
  6. Order 18849Case 15332Designated the spacing unit, 4 wells allowed
  7. Order 18404Case 16140Established the spacing unit, 7 wells allowedMARATHON OIL CO.
  8. Order 20313Case 18044Designated the spacing unit, 7 wells allowedBURLINGTON RESOURCES OIL & GAS CO. LP
  9. Order 33684Case 30998Designated the spacing unit, 3 wells allowedMARATHON OIL CO.

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

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