BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

1,280-acre Bakken spacing unit

T146N R94W sections 16, 21

Spacing unit7 wells allowed · order 33775Bailey-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T146N R94W sections 16, 21
Pool
Bailey-Bakken
Zone
Zone VIII
County
Dunn County
Surveyed wells inside
8
Most wells operated by
Burlington / Marathon
Unit id
dsu-8490cb7c4c2b884f9fd4
Wells allowed by the latest linked order
7
Wells assigned to this unit
8
Pending permits inside
0
Balance under the allowance
-1
First linked order
Jan 17, 2005
Review note
over_allowance
Laterals that still fit (Nov 2026 method)
2 (1.91 two-mile equivalents)
Neighbourhood target density
10.05 two-mile laterals per 1,280 acres
Density drilled so far
7.67 per 1,280 acres

Room to drill: 2 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

BENZ 14-21HULMER 24-21HWILHELM 24-21TFHRINGER 14-21TFHTRINITY 14-21HBENZ 24-21HDIAMOND A 34-21TFHDIAMOND A 44-21TFH1 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
BENZ 14-21HMARATHON OIL COMPANYActive (A)11,296 ft100%
ULMER 24-21HMARATHON OIL COMPANYActive (A)10,344 ft100%
WILHELM 24-21TFHMARATHON OIL COMPANYActive (A)10,264 ft100%
RINGER 14-21TFHMARATHON OIL COMPANYActive (A)10,157 ft100%
TRINITY 14-21HMARATHON OIL COMPANYActive (A)10,093 ft100%
BENZ 24-21HMARATHON OIL COMPANYActive (A)10,008 ft100%
DIAMOND A 34-21TFHMARATHON OIL COMPANYActive (A)9,811 ft100%
DIAMOND A 44-21TFHMARATHON OIL COMPANYActive (A)9,190 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 9877Case 8379Established the spacing unitBLACK ROCK RESOURCES, LLC
  2. Order 10578Case 9002Established the spacing unitTHE PROSPECTIVE INVESTMENT AND TRADING COMPANY, LTD.,
  3. Order 10796Case 9188Designated the spacing unitPETROLEUM DEVELOPMENT CORPORATION
  4. Order 13856Case 11701Designated the spacing unitXTO ENERGY INC.
  5. Order 14362Case 12112Designated the spacing unit, 2 wells allowedMARATHON OIL CO. TO AMEND THE APPLICABLE ORDERS
  6. Order 15863Case 13587Established the spacing unit, 4 wells allowedMARATHON OIL CO.
  7. Order 18849Case 15332Designated the spacing unit, 4 wells allowed
  8. Order 18404Case 16140Established the spacing unit, 7 wells allowedMARATHON OIL CO.
  9. Order 20313Case 18044Designated the spacing unit, 7 wells allowedBURLINGTON RESOURCES OIL & GAS CO. LP

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.