BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

960-acre Bakken spacing unit

T154N R102W sections 21, 28

Spacing unit1 wells allowed · order 31460Rosebud-Bakken

Unit facts

Formation
Bakken
Acres
960
Type
Spacing unit
Land described
T154N R102W sections 21, 28
Pool
Rosebud-Bakken
Zone
Zone II
County
Williams County
Surveyed wells inside
5
Most wells operated by
Chord / Enerplus / Oasis / Whiting
Unit id
dsu-864287388d970aaedf7c
Wells allowed by the latest linked order
1
Wells assigned to this unit
1
Pending permits inside
0
Balance under the allowance
-4
First linked order
Jan 25, 2012
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
5.01 two-mile laterals per 1,280 acres
Density drilled so far
4.71 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

LEDAHL 5402 42-33 4BLedahl 5402 42-33 3BLedahl 5402 42-33 2BXLEDAHL 28-21HLEDAHL 5402 42-33 5BX1 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
LEDAHL 5402 42-33 4BOASIS PETROLEUM NORTH AMERICA LLCActive (A)7,692 ft49%
Ledahl 5402 42-33 3BOASIS PETROLEUM NORTH AMERICA LLCActive (A)7,691 ft47%
Ledahl 5402 42-33 2BXOASIS PETROLEUM NORTH AMERICA LLCActive (A)7,688 ft50%
LEDAHL 28-21HOASIS PETROLEUM NORTH AMERICA LLCActive (A)7,017 ft100%
LEDAHL 5402 42-33 5BXOASIS PETROLEUM NORTH AMERICA LLCActive (A)6,679 ft41%

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 17382Case 15134Designated the spacing unitBRIGHAM OIL & GAS, L.P.
  2. Order 17747Case 15501Established the spacing unit, 1 well allowedZENERGY, INC.
  3. Order 19087Case 16818Pooled all interests in the unitBRIGHAM OIL & GAS, L.P.
  4. Order 19083Case 16814Designated the spacing unit, 8 wells allowedBRIGHAM OIL & GAS, L.P.
  5. Order 19946Case 17676Pooled all interests in the unitEOG RESOURCES, INC.
  6. Order 20131Case 17862Established the spacing unit, 8 wells allowedZENERGY, INC.
  7. Order 19496Case 17227Pooled all interests in the unitZENERGY, INC.
  8. Order 31460Case 28912Established the spacing unit, 1 well allowedOASIS PETROLEUM NORTH AMERICA LLC
  9. Order 35054Case 32299Designated the spacing unitOASIS PETROLEUM NORTH AMERICA LLC

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

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