BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

1,280-acre Bakken spacing unit

T143N R95W sections 1, 12

Spacing unit14 wells allowed · order 35805Murphy Creek-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T143N R95W sections 1, 12
Pool
Murphy Creek-Bakken
Zone
Zone XIII
County
Dunn County
Surveyed wells inside
1
Most wells operated by
Lime Rock III-A
Unit id
dsu-9bdbbff5e12e4f28f6c5
Wells allowed by the latest linked order
14
Wells assigned to this unit
1
Pending permits inside
0
Balance under the allowance
+13
First linked order
May 9, 2008
Laterals that still fit (Nov 2026 method)
4 (3.82 two-mile equivalents)
Neighbourhood target density
4.84 two-mile laterals per 1,280 acres
Density drilled so far
1.17 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

NELSON 1-12-1H-143-951 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
NELSON 1-12-1H-143-95LIME ROCK RESOURCES III-A, L.P.Active (A)12,304 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 11823Case 10027Established the spacing unitANSBRO PETROLEUM CO., LLC
  2. Order 11877Case 9992Designated the spacing unitENCORE OPERATING, L.P.
  3. Order 13317Case 11233Designated the spacing unit
  4. Order 14422Case 12170Established the spacing unit, 3 wells allowedTRACKER RESOURCE DEVELOPMENT II, LLC
  5. Order 15133Case 12866Designated the spacing unit, 6 wells allowedENCORE OPERATING, L.P.
  6. Order 15780Case 13502Pooled all interests in the unitANSCHUTZ EXPLORATION CORP.
  7. Order 24874Case 22540Designated the spacing unit, 14 wells allowedXTO ENERGY INC.
  8. Order 25437Case 23108Established the spacing unit, 14 wells allowedOXY USA INC.

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.