BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

3,840-acre Bakken spacing unit

T156N R92W sections 20, 21, 22, 27, 28, 29

Spacing unitAlger-Bakken

Unit facts

Formation
Bakken
Acres
3,840
Type
Spacing unit
Land described
T156N R92W sections 20, 21, 22, 27, 28, 29
Pool
Alger-Bakken
Zone
Zone XXVII
County
Mountrail County
Surveyed wells inside
19
Most wells operated by
OASIS PETROLEUM NORTH AMERICA LLC
Unit id
dsu-acf246b67a1ae90cd4f0
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
7.73 two-mile laterals per 1,280 acres
Density drilled so far
5.04 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

MALLARD 5692 31-22 5TMALLARD 5692 31-22 11T2MALLARD 5692 31-22 8BMALLARD 5692 31-22 6BMALLARD 5692 31-22 12T2MALLARD 5692 21-20 #10BMALLARD 5692 31-22 7TMALLARD 5692 21-20 #9T2MALLARD 5692 21-20 #4TMALLARD 5692 21-20 #3BMALLARD 5692 21-20 #2TMALLARD 5692 21-20HROSS 27-2728HROSS 15-28HRS-ANDERSON-156-92- 3229H-1ROSS 11-27HTEAL 5692 13-22HSCHA 33-34 XN 1HRS-FELDMAN-LW- 156-92-1423H-11 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
MALLARD 5692 31-22 5TOASIS PETROLEUM NORTH AMERICA LLCActive (A)12,605 ft100%
MALLARD 5692 31-22 11T2OASIS PETROLEUM NORTH AMERICA LLCPlugged and abandoned (PA)11,098 ft100%
MALLARD 5692 31-22 8BOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,924 ft100%
MALLARD 5692 31-22 6BOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,888 ft100%
MALLARD 5692 31-22 12T2OASIS PETROLEUM NORTH AMERICA LLCActive (A)10,881 ft100%
MALLARD 5692 21-20 #10BOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,732 ft100%
MALLARD 5692 31-22 7TOASIS PETROLEUM NORTH AMERICA LLCActive (A)10,669 ft100%
MALLARD 5692 21-20 #9T2OASIS PETROLEUM NORTH AMERICA LLCActive (A)9,933 ft100%
MALLARD 5692 21-20 #4TOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,798 ft100%
MALLARD 5692 21-20 #3BOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,700 ft100%
MALLARD 5692 21-20 #2TOASIS PETROLEUM NORTH AMERICA LLCPlugged and abandoned (PA)9,687 ft100%
MALLARD 5692 21-20HOASIS PETROLEUM NORTH AMERICA LLCActive (A)9,422 ft100%
ROSS 27-2728HEOG RESOURCES, INC.Active (A)6,199 ft100%
ROSS 15-28HEOG RESOURCES, INC.Active (A)5,085 ft100%
RS-ANDERSON-156-92- 3229H-1HESS BAKKEN INVESTMENTS II, LLCActive (A)5,075 ft50%
ROSS 11-27HEOG RESOURCES, INC.Active (A)4,949 ft100%
TEAL 5692 13-22HOASIS PETROLEUM NORTH AMERICA LLCInactive (IA)4,368 ft100%
SCHA 33-34 XN 1HDEVON ENERGY WILLISTON, L.L.C.Active (A)4,318 ft42%
RS-FELDMAN-LW- 156-92-1423H-1HESS BAKKEN INVESTMENTS II, LLCActive (A)3,591 ft36%

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 34817Case 32064Designated the spacing unitEOG RESOURCES, INC.
  2. Order 34970Case 32215Established the spacing unitOASIS PETROLEUM NORTH AMERICA LLC
  3. Order 34993Case 32238Pooled all interests in the unitOASIS PETROLEUM NORTH AMERICA LLC
  4. Order 35988Case 33038Designated the spacing unitSOGC, 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

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