BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

1,920-acre Bakken spacing unit

T155N R100W sections 3, 10, 15

Spacing unit6 wells allowed · order 35354Stony Creek-Bakken

Unit facts

Formation
Bakken
Acres
1,920
Type
Spacing unit
Land described
T155N R100W sections 3, 10, 15
Pool
Stony Creek-Bakken
Zone
Zone IX
County
Williams County
Surveyed wells inside
12
Most wells operated by
Kraken / Neptune / Zavanna
Unit id
dsu-5aef7b40f158cb3e7803
Wells allowed by the latest linked order
6
Wells assigned to this unit
5
Pending permits inside
0
Balance under the allowance
-6
First linked order
Apr 11, 2013
Laterals that still fit (Nov 2026 method)
1 (1.45 two-mile equivalents)
Neighbourhood target density
8.01 two-mile laterals per 1,280 acres
Density drilled so far
6.92 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

Mastiff 22-3 1HMastiff 22-3 3HMastiff 22-3 2HBoxer 22-3 3HBoxer 22-3 2HOCELOT 1-15HCHEETAH 1-10HTONY 1-3HPANTHER 16-22 5TFH XESHEPHERD 3-11 1HSHEPHERD 3-11 2TFHSHEPHERD 3-11 3H1 mi

DMR footprint (NAD83) with the published surface locations of its wells. Laterals run under the unit; pads often sit on a neighbouring section.

Wells inside the unit

WellOperatorStatusLateral inside
Mastiff 22-3 1HZavanna Energy Operating, LLCActive (A)16,184 ft100%
Mastiff 22-3 3HZavanna Energy Operating, LLCActive (A)15,467 ft100%
Mastiff 22-3 2HZavanna Energy Operating, LLCActive (A)15,461 ft100%
Boxer 22-3 3HZavanna Energy Operating, LLCActive (A)15,450 ft100%
Boxer 22-3 2HZavanna Energy Operating, LLCActive (A)15,412 ft100%
OCELOT 1-15HZavanna Energy Operating, LLCActive (A)5,833 ft100%
CHEETAH 1-10HZavanna Energy Operating, LLCInactive (IA)5,697 ft100%
TONY 1-3HZavanna Energy Operating, LLCActive (A)5,696 ft100%
PANTHER 16-22 5TFH XEZavanna Energy Operating, LLCActive (A)5,088 ft50%
SHEPHERD 3-11 1HZavanna Energy Operating, LLCActive (A)4,505 ft39%
SHEPHERD 3-11 2TFHZavanna Energy Operating, LLCActive (A)3,090 ft29%
SHEPHERD 3-11 3HZavanna Energy Operating, LLCActive (A)1,535 ft17%

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 21138Case 18837Listed the unit in a pool zone table, 5 wells allowedZAVANNA, LLC
  2. Order 32691Case 30081Established the spacing unit, 6 wells allowedZAVANNA, 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

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