BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

1,280-acre Bakken spacing unit

T143N R97W sections 28, 29

Spacing unit6 wells allowed · order 33525Willmen-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T143N R97W sections 28, 29
Pool
Willmen-Bakken
Zone
Zone IV
County
Dunn County
Surveyed wells inside
2
Most wells operated by
Lime Rock III-A
Unit id
dsu-9988686383738928a3eb
Wells allowed by the latest linked order
6
Wells assigned to this unit
2
Pending permits inside
0
Balance under the allowance
+4
First linked order
Feb 6, 2006
Laterals that still fit (Nov 2026 method)
2 (1.9 two-mile equivalents)
Neighbourhood target density
4.31 two-mile laterals per 1,280 acres
Density drilled so far
2.27 per 1,280 acres

Room to drill: 2 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

STEFFAN 13-29HSTEFFAN 2-29-28H-143-971 mi

DMR footprint (NAD83) with the published surface locations of its wells. Laterals run under the unit; pads often sit on a neighbouring section.

Wells inside the unit

WellOperatorStatusLateral inside
STEFFAN 13-29HLIME ROCK RESOURCES III-A, L.P.Abandoned (AB)14,302 ft100%
STEFFAN 2-29-28H-143-97LIME ROCK RESOURCES III-A, L.P.Active (A)9,449 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 10404Case 8860Designated the spacing unitANSBRO PETROLEUM COMPANY, LLC
  2. Order 11262Case 9586Pooled all interests in the unitANSBRO PETROLEUM CO., LLC
  3. Order 16630Case 14353Designated the spacing unitANSCHUTZ EXPLORATION CORP.
  4. Order 18352Case 16089Established the spacing unit, 6 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.