BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

1,280-acre Bakken spacing unit

T146N R94W sections 27, 34

Spacing unit7 wells allowed · order 33775Bailey-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T146N R94W sections 27, 34
Pool
Bailey-Bakken
Zone
Zone VIII
County
Dunn County
Surveyed wells inside
8
Most wells operated by
Burlington / Marathon
Unit id
dsu-bb1cb8d0256900f690c9
Wells allowed by the latest linked order
7
Wells assigned to this unit
6
Pending permits inside
0
Balance under the allowance
-1
First linked order
Feb 15, 2007
Laterals that still fit (Nov 2026 method)
5 (4.79 two-mile equivalents)
Neighbourhood target density
9.81 two-mile laterals per 1,280 acres
Density drilled so far
4.89 per 1,280 acres

Room to drill: 5 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

COLGROVE 14-34TFHREIDUN 21-27TFHPAM RECKARD 11-27HBEN RECKARD 41-27HRECKARD 31-27HARMSTRONG 14-34HANDEKER 44-34 1SOMMER 11-26H1 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
COLGROVE 14-34TFHMARATHON OIL COMPANYActive (A)10,186 ft100%
REIDUN 21-27TFHMARATHON OIL COMPANYActive (A)10,078 ft100%
PAM RECKARD 11-27HMARATHON OIL COMPANYAbandoned (AB)9,196 ft100%
BEN RECKARD 41-27HMARATHON OIL COMPANYActive (A)9,188 ft100%
RECKARD 31-27HMARATHON OIL COMPANYActive (A)7,152 ft100%
ARMSTRONG 14-34HMARATHON OIL COMPANYActive (A)2,786 ft28%
ANDEKER 44-34 1MISSOURI RIVER ROYALTY CORPORATIONPlugged and abandoned (PA)2,559 ft100%
SOMMER 11-26HMARATHON OIL COMPANYActive (A)891 ft9%

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 10957Case 9334Designated the spacing unitPETROLEUM DEVELOPMENT CORP.
  2. Order 13856Case 11701Designated the spacing unitXTO ENERGY INC.
  3. Order 14362Case 12112Designated the spacing unit, 2 wells allowedMARATHON OIL CO. TO AMEND THE APPLICABLE ORDERS
  4. Order 15863Case 13587Established the spacing unit, 4 wells allowedMARATHON OIL CO.
  5. Order 18849Case 15332Designated the spacing unit, 4 wells allowed
  6. Order 18404Case 16140Established the spacing unit, 7 wells allowedMARATHON OIL CO.
  7. 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

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