BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T151N R93W sections 25, 36

Spacing unit9 wells allowed · order 31536Reunion Bay-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T151N R93W sections 25, 36
Pool
Reunion Bay-Bakken
Zone
Zone VIII
County
Mountrail County
Surveyed wells inside
10
Most wells operated by
Burlington / Marathon
Unit id
dsu-223df73036ba4420fefc
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
Mar 27, 2009
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
9.55 two-mile laterals per 1,280 acres
Density drilled so far
9.22 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

HOUSER 14-36HPALMER 31-25TFHHARLEY 14-36TFHBERLIN 41-25HELWOOD 41-25TFHZOOK 41-25TFHAISENBREY 21-25HLUND 44-35HBRODAHL 31-25HAISENBREY 21-25TFH1 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
HOUSER 14-36HMARATHON OIL COMPANYActive (A)10,213 ft100%
PALMER 31-25TFHMARATHON OIL COMPANYActive (A)10,116 ft100%
HARLEY 14-36TFHMARATHON OIL COMPANYActive (A)9,964 ft100%
BERLIN 41-25HMARATHON OIL COMPANYActive (A)9,956 ft100%
ELWOOD 41-25TFHMARATHON OIL COMPANYActive (A)9,932 ft100%
ZOOK 41-25TFHMARATHON OIL COMPANYInactive (IA)9,891 ft100%
AISENBREY 21-25HMARATHON OIL COMPANYActive (A)9,562 ft100%
LUND 44-35HMARATHON OIL COMPANYActive (A)9,329 ft92%
BRODAHL 31-25HMARATHON OIL COMPANYActive (A)9,289 ft100%
AISENBREY 21-25TFHMARATHON OIL COMPANYActive (A)9,060 ft100%

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 12898Case 10898Established the spacing unitMARATHON OIL CO.
  2. Order 13558Case 11439Designated the spacing unit
  3. Order 14618Case 12362Established the spacing unit, 2 wells allowedMARATHON OIL CO.
  4. Order 16861Case 14583Designated the spacing unit, 4 wells allowedSLAWSON EXPLORATION CO., INC.
  5. Order 17197Case 14947Established the spacing unit, 4 wells allowedMARATHON OIL CO.
  6. Order 18907Case 16638Established the spacing unit, 7 wells allowedMARATHON OIL CO.
  7. Order 24971Case 22636Established the spacing unit, 9 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

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