BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

1,280-acre Bakken spacing unit

T156N R101W sections 27, 34

Spacing unit12 wells allowed · order 36005Tyrone-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T156N R101W sections 27, 34
Pool
Tyrone-Bakken
Zone
Zone VII
County
Williams County
Surveyed wells inside
10
Most wells operated by
Chord / Enerplus / Oasis / Whiting
Unit id
dsu-6a9fec917f060090e25d
Wells allowed by the latest linked order
12
Wells assigned to this unit
7
Pending permits inside
0
Balance under the allowance
+2
First linked order
Mar 29, 2010
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
7.42 two-mile laterals per 1,280 acres
Density drilled so far
8.59 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

MCCAULEY 5501 14-3HMCCAULEY 5501 14-3 3TMCCAULEY 5501 13-3 7T2MCCAULEY 5501 14-4 8BXMCCAULEY 5601 41-34 4BMCCAULEY 5501 14-3 2BMCCAULEY 5601 41-34 5TMCCAULEY 5601 41-34 6BMCCAULEY LOGAN 5601 11-26 6TMONTAGUE 5601 42-34 #4T1 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
MCCAULEY 5501 14-3HOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,438 ft100%
MCCAULEY 5501 14-3 3TOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,207 ft100%
MCCAULEY 5501 13-3 7T2OASIS PETROLEUM NORTH AMERICA LLCActive (A)10,166 ft100%
MCCAULEY 5501 14-4 8BXOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,055 ft98%
MCCAULEY 5601 41-34 4BOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,020 ft100%
MCCAULEY 5501 14-3 2BOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,993 ft100%
MCCAULEY 5601 41-34 5TOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,604 ft100%
MCCAULEY 5601 41-34 6BOASIS PETROLEUM NORTH AMERICA LLCActive (A)7,940 ft100%
MCCAULEY LOGAN 5601 11-26 6TOASIS PETROLEUM NORTH AMERICA LLCActive (A)7,913 ft82%
MONTAGUE 5601 42-34 #4TOASIS PETROLEUM NORTH AMERICA LLCActive (A)4,784 ft46%

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 14355Case 12105Established the spacing unit, 1 well allowedOASIS PETROLEUM NORTH AMERICA LLC
  2. Order 17919Case 15664Established the spacing unit, 1 well allowedPetro-Hunt
  3. Order 17919Case 15664Designated the spacing unitPetro-Hunt
  4. Order 18172Case 15171Established the spacing unit, 4 wells allowed
  5. Order 19744Case 17474Pooled all interests in the unitOASIS PETROLEUM NORTH AMERICA LLC
  6. Order 21127Case 18826Established the spacing unit, 8 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  7. Order 23166Case 20860Designated the spacing unit, 12 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  8. Order 23797Case 21455Established the spacing unit, 12 wells allowedOASIS 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

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