BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T151N R93W sections 30, 31

Spacing unit9 wells allowed · order 31536Reunion Bay-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T151N R93W sections 30, 31
Pool
Reunion Bay-Bakken
Zone
Zone VIII
County
Mountrail County
Surveyed wells inside
9
Most wells operated by
Burlington / Marathon
Unit id
dsu-8c8e330c7271e1e175ef
Wells allowed by the latest linked order
9
Wells assigned to this unit
9
Pending permits inside
0
Balance under the allowance
0
First linked order
Jun 26, 2007
Laterals that still fit (Nov 2026 method)
1 (0.95 two-mile equivalents)
Neighbourhood target density
9.82 two-mile laterals per 1,280 acres
Density drilled so far
9.15 per 1,280 acres

Room to drill: 1 lateral 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

JAY SANDSTROM USA 34-31HCopeland USA 34-31HHerman USA 24-31TFHJAHNKE USA 24-31TFHJAHNKE USA 24-31HHartson USA 24-31HEtherington USA 34-31TFHOrtman USA 34-31TFHKEITH 44-31TFH1 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
JAY SANDSTROM USA 34-31HMARATHON OIL COMPANYActive (A)11,169 ft100%
Copeland USA 34-31HMARATHON OIL COMPANYActive (A)11,081 ft100%
Herman USA 24-31TFHMARATHON OIL COMPANYActive (A)10,288 ft100%
JAHNKE USA 24-31TFHMARATHON OIL COMPANYActive (A)10,270 ft100%
JAHNKE USA 24-31HMARATHON OIL COMPANYActive (A)10,230 ft100%
Hartson USA 24-31HMARATHON OIL COMPANYActive (A)10,043 ft100%
Etherington USA 34-31TFHMARATHON OIL COMPANYActive (A)9,995 ft100%
Ortman USA 34-31TFHMARATHON OIL COMPANYActive (A)9,835 ft100%
KEITH 44-31TFHMARATHON OIL COMPANYActive (A)9,464 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 11180Case 9518Established the spacing unitMARATHON OIL CO.
  2. Order 12482Case 10551Designated the spacing unit
  3. Order 13322Case 11238Pooled all interests in the unitMARATHON OIL CO.
  4. Order 14945Case 12684Designated the spacing unitMARATHON OIL CO.
  5. Order 15256Case 12989Designated the spacing unit, 2 wells allowedMARATHON OIL CO.
  6. Order 17198Case 14948Established the spacing unit, 4 wells allowedMARATHON OIL CO.
  7. Order 18909Case 16640Established the spacing unit, 7 wells allowedMARATHON OIL CO.
  8. Order 29891Case 27448Designated the spacing unit, 9 wells allowedMARATHON OIL CO.
  9. Order 29913Case 27470Established 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

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