BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

1,280-acre Bakken spacing unit

T146N R95W sections 14, 23

Spacing unit7 wells allowed · order 31661Chimney Butte-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T146N R95W sections 14, 23
Pool
Chimney Butte-Bakken
Zone
Zone III
County
Dunn County
Surveyed wells inside
11
Most wells operated by
Burlington / Marathon
Unit id
dsu-ecc99a2b36e51fc4719d
Wells allowed by the latest linked order
7
Wells assigned to this unit
11
Pending permits inside
0
Balance under the allowance
-4
First linked order
May 24, 2005
Review note
over_allowance
Laterals that still fit (Nov 2026 method)
0
Neighbourhood target density
10.48 two-mile laterals per 1,280 acres
Density drilled so far
10.21 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

TUFTE 24-23TFHBREWSTER 24-23TFHRUTH 44-23TFHBUGBEE 24-23HDELMONT 34-23HHELLERUD 14-23TFHROSA BENZ 44-23HYOUNG 24-23TFHSCHAEFER 34-23TFHTED KUPPER 14-23HKLATT 31-14H1 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
TUFTE 24-23TFHMARATHON OIL COMPANYInactive (IA)10,369 ft100%
BREWSTER 24-23TFHMARATHON OIL COMPANYActive (A)10,279 ft100%
RUTH 44-23TFHMARATHON OIL COMPANYActive (A)10,243 ft100%
BUGBEE 24-23HMARATHON OIL COMPANYActive (A)10,233 ft100%
DELMONT 34-23HMARATHON OIL COMPANYActive (A)10,232 ft100%
HELLERUD 14-23TFHMARATHON OIL COMPANYActive (A)9,888 ft100%
ROSA BENZ 44-23HMARATHON OIL COMPANYActive (A)9,669 ft100%
YOUNG 24-23TFHMARATHON OIL COMPANYPlugged and abandoned (PA)9,572 ft100%
SCHAEFER 34-23TFHMARATHON OIL COMPANYActive (A)9,485 ft100%
TED KUPPER 14-23HMARATHON OIL COMPANYActive (A)9,340 ft100%
KLATT 31-14HMARATHON OIL COMPANYTemporarily abandoned (TA)6,978 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 10024Case 8536Established the spacing unitBLACK ROCK RESOURCES, LLC
  2. Order 10839Case 9226Designated the spacing unit
  3. Order 11037Case 9332Pooled all interests in the unitMARATHON OIL CO.
  4. Order 13856Case 11701Designated the spacing unitXTO ENERGY INC.
  5. Order 14362Case 12112Established the spacing unit, 3 wells allowedMARATHON OIL CO. TO AMEND THE APPLICABLE ORDERS
  6. Order 15863Case 13587Established the spacing unit, 4 wells allowedMARATHON OIL CO.
  7. Order 18849Case 15332Listed the unit in a pool zone table, 4 wells allowed
  8. Order 18404Case 16140Listed the unit in a pool zone table, 7 wells allowedMARATHON OIL CO.
  9. Order 22126Case 19819Designated the spacing unit, 7 wells allowedMARATHON OIL CO.

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.