BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

2,560-acre Bakken spacing unit

T154N R99W sections 22, 23, 26, 27

Spacing unitTerminated by order 35086 (Feb 9, 2026)Stockyard Creek-Bakken

Unit facts

Formation
Bakken
Acres
2,560
Type
Spacing unit
Land described
T154N R99W sections 22, 23, 26, 27
Pool
Stockyard Creek-Bakken
Zone
Zone XV
County
Williams County
Surveyed wells inside
8
Most wells operated by
Zavanna Energy Operating, LLC
Unit id
dsu-67a8768393a6710019de
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
8.85 two-mile laterals per 1,280 acres
Density drilled so far
2.16 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. 4 more would fit the density but not the spacing rule. 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

Hereford 13-35 1H XWGRASSER 1-26HLEONARD 1-23HGENE 1-22HANGUS 34-27 4TFHANGUS 34-27 2HMARLIN 27-34 1HNSI 23-24H1 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
Hereford 13-35 1H XWZavanna Energy Operating, LLCActive (A)10,314 ft67%
GRASSER 1-26HZavanna Energy Operating, LLCActive (A)6,575 ft100%
LEONARD 1-23HZavanna Energy Operating, LLCActive (A)5,641 ft100%
GENE 1-22HZavanna Energy Operating, LLCActive (A)5,536 ft100%
ANGUS 34-27 4TFHZavanna Energy Operating, LLCActive (A)5,053 ft50%
ANGUS 34-27 2HZavanna Energy Operating, LLCActive (A)5,025 ft50%
MARLIN 27-34 1HZavanna Energy Operating, LLCActive (A)4,505 ft47%
NSI 23-24HZavanna Energy Operating, LLCActive (A)3,127 ft47%

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 32692Case 30082Established the spacing unitZAVANNA, LLC
  2. Order 32718Case 30108Designated the spacing unitZAVANNA, LLC
  3. Order 34074Case 31374Designated the spacing unitZAVANNA, LLC
  4. Order 35086Case 32331Terminated the spacing unitZAVANNA, 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

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