BBakken SubsurfaceNorth Dakota well index

Spacing unit · Williams County

640-acre Bakken spacing unit

T154N R99W section 13

Spacing unit3 wells allowed · order 35086Stockyard Creek-Bakken

Unit facts

Formation
Bakken
Acres
640
Type
Spacing unit
Land described
T154N R99W section 13
Pool
Stockyard Creek-Bakken
Zone
Zone II
County
Williams County
Surveyed wells inside
10
Most wells operated by
Slawson
Unit id
dsu-4eff1697894fb1bd5e79
Wells allowed by the latest linked order
3
Wells assigned to this unit
3
Pending permits inside
0
Balance under the allowance
-7
First linked order
Feb 8, 2013
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
8.8 two-mile laterals per 1,280 acres
Density drilled so far
8.71 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

EARL 1-13HIRONBANK 5-14-13TFHIRONBANK 7-14-13TFHIRONBANK 6-14-13TFHIRONBANK 4-14-13TFHBILLABONG 2-13-14HBKSAIL AND ANCHOR 4-13-14HBKE RENNERFELDT 1-13HE RENNERFELDT 2-13HBLACKDOG 3-13-14H1 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
EARL 1-13HZavanna Energy Operating, LLCActive (A)5,813 ft100%
IRONBANK 5-14-13TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)5,044 ft69%
IRONBANK 7-14-13TFHSLAWSON EXPLORATION COMPANY, INC.Active (A)5,044 ft65%
IRONBANK 6-14-13TFHSLAWSON EXPLORATION COMPANY, INC.Abandoned (AB)5,036 ft66%
IRONBANK 4-14-13TFHSLAWSON EXPLORATION COMPANY, INC.Inactive (IA)4,861 ft70%
BILLABONG 2-13-14HBKSLAWSON EXPLORATION COMPANY, INC.Active (A)4,639 ft77%
SAIL AND ANCHOR 4-13-14HBKSLAWSON EXPLORATION COMPANY, INC.Active (A)4,545 ft48%
E RENNERFELDT 1-13HSLAWSON EXPLORATION COMPANY, INC.Active (A)3,855 ft100%
E RENNERFELDT 2-13HSLAWSON EXPLORATION COMPANY, INC.Active (A)3,726 ft100%
BLACKDOG 3-13-14HSLAWSON EXPLORATION COMPANY, INC.Active (A)3,487 ft41%

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 19375Case 17107Pooled all interests in the unitZAVANNA, LLC
  2. Order 21930Case 19624Listed the unit in a pool zone table, 3 wells allowedPETRO- HUNT, LLC
  3. Order 23144Case 20838Established the spacing unit, 3 wells allowedSLAWSON EXPLORATION CO., INC.

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

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