BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T150N R92W sections 18, 19

Spacing unit8 wells allowed · order 35220Van Hook-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T150N R92W sections 18, 19
Pool
Van Hook-Bakken
Zone
Zone III
County
Mountrail County
Surveyed wells inside
9
Most wells operated by
Burlington / Marathon
Unit id
dsu-0815fba4c2c2e1c97b4c
Wells allowed by the latest linked order
8
Wells assigned to this unit
9
Pending permits inside
0
Balance under the allowance
-1
First linked order
Jan 16, 2009
Review note
over_allowance
Laterals that still fit (Nov 2026 method)
1 (0.96 two-mile equivalents)
Neighbourhood target density
9.25 two-mile laterals per 1,280 acres
Density drilled so far
8.52 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

GREYBULL USA 31-18TFHBERRY USA 21-18HBURGER USA 41-18TFHGRANT USA 21-18 TFHBAKER USA 11-18TFHBOWMAN USA 41-18HBLACKBURN USA 41-18TFHARVID BANGEN USA 31-18HBAKER USA 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
GREYBULL USA 31-18TFHMARATHON OIL COMPANYActive (A)10,187 ft100%
BERRY USA 21-18HMARATHON OIL COMPANYActive (A)9,965 ft100%
BURGER USA 41-18TFHMARATHON OIL COMPANYActive (A)9,811 ft100%
GRANT USA 21-18 TFHMARATHON OIL COMPANYActive (A)9,734 ft100%
BAKER USA 11-18TFHMARATHON OIL COMPANYActive (A)9,720 ft100%
BOWMAN USA 41-18HMARATHON OIL COMPANYActive (A)9,667 ft100%
BLACKBURN USA 41-18TFHMARATHON OIL COMPANYAbandoned (AB)9,655 ft100%
ARVID BANGEN USA 31-18HMARATHON OIL COMPANYActive (A)9,429 ft100%
BAKER USA 11-18HMARATHON OIL COMPANYActive (A)9,421 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 12710Case 10749Established the spacing unitMARATHON OIL CO.
  2. Order 15446Case 13178Designated the spacing unit, 2 wells allowedSLAWSON EXPLORATION CO., INC.
  3. Order 16266Case 13993Pooled all interests in the unitMARATHON OIL CO.
  4. Order 16851Case 14573Designated the spacing unit, 4 wells allowedSPOTTED HAWK DEVELOPMENT, LLC
  5. Order 17196Case 14946Established the spacing unit, 4 wells allowedMARATHON OIL CO.
  6. Order 18908Case 16639Established the spacing unit, 7 wells allowedMARATHON OIL CO.
  7. Order 18903Case 16634Designated the spacing unit, 7 wells allowedWINDSOR ENERGY GROUP, LLC
  8. Order 28169Case 25758Designated the spacing unit, 8 wells allowedSHD OIL & GAS, LLC
  9. Order 28500Case 26087Established the spacing unit, 8 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

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