BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T155N R91W sections 17, 20

Spacing unit10 wells allowed · order 35207Stanley-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T155N R91W sections 17, 20
Pool
Stanley-Bakken
Zone
Zone XIV
County
Mountrail County
Surveyed wells inside
6
Most wells operated by
Murex Petroleum
Unit id
dsu-3177ad09bdafeaa84f6b
Wells allowed by the latest linked order
10
Wells assigned to this unit
6
Pending permits inside
0
Balance under the allowance
+4
First linked order
Sep 14, 2007
Laterals that still fit (Nov 2026 method)
3 (2.85 two-mile equivalents)
Neighbourhood target density
8.31 two-mile laterals per 1,280 acres
Density drilled so far
5.44 per 1,280 acres

Room to drill: 3 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

BEHR 16-21 2H-LL-155-91HANSEN B 18-19-4TFHLMAXWELL JAMES 17-20HRONALD DEAN 17-20HPRESTON THOMAS 20-17HEVY JUNE 17-20H1 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
BEHR 16-21 2H-LL-155-91LIME ROCK RESOURCES III-A, L.P.Active (A)10,792 ft100%
HANSEN B 18-19-4TFHLLIME ROCK RESOURCES III-A, L.P.Active (A)10,298 ft100%
MAXWELL JAMES 17-20HMUREX PETROLEUM CORPORATIONActive (A)9,668 ft100%
RONALD DEAN 17-20HMUREX PETROLEUM CORPORATIONActive (A)9,584 ft100%
PRESTON THOMAS 20-17HMUREX PETROLEUM CORPORATIONActive (A)8,763 ft100%
EVY JUNE 17-20HMUREX PETROLEUM CORPORATIONActive (A)8,417 ft100%

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 11320Case 9634Established the spacing unitMUREX PETROLEUM CORP.
  2. Order 11851Case 10047Designated the spacing unitMUREX PETROLEUM CORP.
  3. Order 12959Case 10944Pooled all interests in the unitMUREX PETROLEUM CORP.
  4. Order 13531Case 11422Designated the spacing unitMUREX PETROLEUM CORP.
  5. Order 13928Case 11671Designated the spacing unit, 2 wells allowed
  6. Order 17074Case 14798Designated the spacing unit, 4 wells allowedFIDELITY EXPLORATION & PRODUCTION CO.
  7. Order 17428Case 15183Established the spacing unit, 4 wells allowedMUREX PETROLEUM CORP.
  8. Order 23195Case 20889Established the spacing unit, 8 wells allowedMUREX PETROLEUM CORP.
  9. Order 32218Case 29633Designated the spacing unit, 10 wells allowedSEG WILLISTON, LLC
  10. Order 32289Case 29685Established the spacing unit, 10 wells allowedMUREX PETROLEUM CORP.

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

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