BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

2,560-acre Bakken spacing unit

T156N R103W sections 15, 16, 21, 22

Spacing unitBull Butte-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T156N R103W sections 15, 16, 21, 22
Pool
Bull Butte-Bakken
Zone
Zone VII
County
Williams County
Surveyed wells inside
5
Most wells operated by
OASIS PETROLEUM NORTH AMERICA LLC
Unit id
dsu-246bbfe638fc8a853bb3
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
4.33 two-mile laterals per 1,280 acres
Density drilled so far
2.48 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

EMERALD 5603 43-10 4TEMERALD 5603 43-10 3BEMERALD 5603 42-10HEMERALD 5603 43-10 2BBCD FARMS 16-21 1-H1 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
EMERALD 5603 43-10 4TOASIS PETROLEUM NORTH AMERICA LLCActive (A)12,364 ft100%
EMERALD 5603 43-10 3BOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,997 ft100%
EMERALD 5603 42-10HOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,239 ft100%
EMERALD 5603 43-10 2BOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,088 ft100%
BCD FARMS 16-21 1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)8,870 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 27634Case 25215Established the spacing unitSTATOIL OIL AND GAS LP
  2. Order 27746Case 25341Pooled all interests in the unitSTATOIL OIL & GAS LP
  3. Order 32131Case 29561Designated the spacing unitOASIS PETROLEUM NORTH AMERICA LLC
  4. Order 35807Case 32881Designated the spacing unitPHOENIX OPERATING 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

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