BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

2,560-acre Bakken spacing unit

T145N R93W sections 17, 18, 19, 20

Spacing unitBailey-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T145N R93W sections 17, 18, 19, 20
Pool
Bailey-Bakken
Zone
Zone XIV
County
Dunn County
Surveyed wells inside
10
Most wells operated by
MARATHON OIL COMPANY
Unit id
dsu-6ff0c49c016453ba1d27
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
9.41 two-mile laterals per 1,280 acres
Density drilled so far
4.28 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

Semerad 11-18HSUNELL 11-17HBJORGE 41-18HBRENT KERR 21-17HJOYCE REPP 21-17HAHERN 34-19HJOYCE REPP 41-17HTRINKA 41-18HAPPLEDOORN 14-19HClawson 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)10,499 ft50%
SUNELL 11-17HMARATHON OIL COMPANYActive (A)10,383 ft50%
BJORGE 41-18HMARATHON OIL COMPANYActive (A)10,370 ft50%
BRENT KERR 21-17HMARATHON OIL COMPANYActive (A)10,203 ft100%
JOYCE REPP 21-17HMARATHON OIL COMPANYActive (A)9,629 ft100%
AHERN 34-19HMARATHON OIL COMPANYActive (A)9,467 ft100%
JOYCE REPP 41-17HMARATHON OIL COMPANYActive (A)9,042 ft100%
TRINKA 41-18HMARATHON OIL COMPANYActive (A)9,003 ft100%
APPLEDOORN 14-19HMARATHON OIL COMPANYActive (A)8,586 ft100%
Clawson 11-18HMARATHON OIL COMPANYActive (A)3,227 ft16%

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 32086Case 29516Established the spacing unitMARATHON OIL CO.
  2. Order 32179Case 29607Designated the spacing unitHUNT OIL CO.
  3. Order 33775Case 31086Designated the spacing unitMARATHON 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

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