BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

1,280-acre Bakken spacing unit

T156N R101W sections 29, 32

Spacing unit12 wells allowed · order 36005Tyrone-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T156N R101W sections 29, 32
Pool
Tyrone-Bakken
Zone
Zone VII
County
Williams County
Surveyed wells inside
7
Most wells operated by
Chord / Enerplus / Oasis / Whiting
Unit id
dsu-b6c66e31bff69b4b823f
Wells allowed by the latest linked order
12
Wells assigned to this unit
6
Pending permits inside
0
Balance under the allowance
+5
First linked order
Mar 29, 2010
Laterals that still fit (Nov 2026 method)
1 (0.95 two-mile equivalents)
Neighbourhood target density
7.29 two-mile laterals per 1,280 acres
Density drilled so far
5.97 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

HOLMES 5501 12-5 4BHOLMES 5501 12-5 5THOLMES 5501 11-5 #2THOLMES 5501 11-5 #3BHOLMES 5501 14-5 6THOLMES 5601 44-32HHOLMES HARBOUR 5501 14-5 2B1 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
HOLMES 5501 12-5 4BOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,692 ft100%
HOLMES 5501 12-5 5TOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,361 ft100%
HOLMES 5501 11-5 #2TOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,141 ft100%
HOLMES 5501 11-5 #3BOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,999 ft100%
HOLMES 5501 14-5 6TOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,940 ft100%
HOLMES 5601 44-32HOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,723 ft100%
HOLMES HARBOUR 5501 14-5 2BOASIS PETROLEUM NORTH AMERICA LLCActive (A)1,777 ft18%

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 15248Case 12981Established the spacing unit, 1 well allowed
  3. Order 15248Case 12981Designated the spacing unit
  4. Order 17675Case 15429Pooled all interests in the unitOASIS PETROLEUM NORTH AMERICA LLC
  5. Order 18172Case 15171Designated the spacing unit
  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

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