BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

2,560-acre Bakken spacing unit

T156N R93W sections 17, 18, 19, 20

Spacing unitAlger-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T156N R93W sections 17, 18, 19, 20
Pool
Alger-Bakken
Zone
Zone XXIII
County
Mountrail County
Surveyed wells inside
21
Most wells operated by
DEVON ENERGY WILLISTON, L.L.C.
Unit id
dsu-c869f7ec999374feb0e0
Laterals that still fit (Nov 2026 method)
1 (0.95 two-mile equivalents)
Neighbourhood target density
7.97 two-mile laterals per 1,280 acres
Density drilled so far
6.79 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

EN-RIERSGARD-156-93- 1718H-1EN-RIERSGARD 156-93-1718H-4EN-RIERSGARD-156-93- 1718H-2EN-RIERSGARD 156-93-1718H-6EN-RIERSGARD 156-93-1718H-5EN-WEFALD-LE- 156-94-2413H-1EN-RIERSGARD-156-93- 1718H-3BROWN 30-19 1-HBROWN 30-19 3HBROWN 30-19 4TFHBROWN 30-19 #2HBROWN 30-19 5TFHBROWN 30-19 6HLIFFRIG 29-20 #3TFHBROWN 30-19 #7TFHLIFFRIG 29-20 #4HLIFFRIG 29-20 5HLIFFRIG 29-20 6TFHLIFFRIG 29-20 7HLIFFRIG 29-20 #2HLIFFRIG 29-20 #1TFH1 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
EN-RIERSGARD-156-93- 1718H-1HESS BAKKEN INVESTMENTS II, LLCActive (A)11,080 ft100%
EN-RIERSGARD 156-93-1718H-4HESS BAKKEN INVESTMENTS II, LLCActive (A)10,936 ft100%
EN-RIERSGARD-156-93- 1718H-2HESS BAKKEN INVESTMENTS II, LLCActive (A)10,198 ft100%
EN-RIERSGARD 156-93-1718H-6HESS BAKKEN INVESTMENTS II, LLCActive (A)10,125 ft100%
EN-RIERSGARD 156-93-1718H-5HESS BAKKEN INVESTMENTS II, LLCActive (A)9,801 ft100%
EN-WEFALD-LE- 156-94-2413H-1HESS BAKKEN INVESTMENTS II, LLCActive (A)9,730 ft95%
EN-RIERSGARD-156-93- 1718H-3HESS BAKKEN INVESTMENTS II, LLCActive (A)9,593 ft100%
BROWN 30-19 1-HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,373 ft56%
BROWN 30-19 3HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,336 ft50%
BROWN 30-19 4TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)5,057 ft50%
BROWN 30-19 #2HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,051 ft51%
BROWN 30-19 5TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)5,050 ft50%
BROWN 30-19 6HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,048 ft49%
LIFFRIG 29-20 #3TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)5,036 ft52%
BROWN 30-19 #7TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)5,032 ft52%
LIFFRIG 29-20 #4HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,031 ft53%
LIFFRIG 29-20 5HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,030 ft52%
LIFFRIG 29-20 6TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)5,029 ft46%
LIFFRIG 29-20 7HDEVON ENERGY WILLISTON, L.L.C.Active (A)5,025 ft50%
LIFFRIG 29-20 #2HDEVON ENERGY WILLISTON, L.L.C.Active (A)4,984 ft52%
LIFFRIG 29-20 #1TFHDEVON ENERGY WILLISTON, L.L.C.Active (A)4,778 ft52%

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 34883Case 32106Established the spacing unitHESS BAKKEN INVESTMENTS II, LLC
  3. Order 34918Case 32141Pooled all interests in the unitHESS BAKKEN INVESTMENTS II, 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

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