BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

1,280-acre Bakken spacing unit

T146N R94W sections 29, 32

Spacing unit8 wells allowed · order 33775Bailey-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T146N R94W sections 29, 32
Pool
Bailey-Bakken
Zone
Zone IX
County
Dunn County
Surveyed wells inside
9
Most wells operated by
Burlington / Marathon
Unit id
dsu-3fe74bc56a6a65364cfd
Wells allowed by the latest linked order
8
Wells assigned to this unit
8
Pending permits inside
0
Balance under the allowance
-1
First linked order
Feb 15, 2007
Laterals that still fit (Nov 2026 method)
2 (1.91 two-mile equivalents)
Neighbourhood target density
9.92 two-mile laterals per 1,280 acres
Density drilled so far
8.08 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

CARLSON 21-29HSKIP 31-29HAMBER 31-29HDEUCE 21-29TFHRED 31-29TFHCINNINGER 14-32TFHKLAY CARLSON 41-29TFHDAN TUHY 14-32HTHORSTEIN 14-32H1 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
CARLSON 21-29HMARATHON OIL COMPANYPlugged and abandoned (PA)14,055 ft100%
SKIP 31-29HMARATHON OIL COMPANYActive (A)10,327 ft100%
AMBER 31-29HMARATHON OIL COMPANYActive (A)10,287 ft100%
DEUCE 21-29TFHMARATHON OIL COMPANYActive (A)10,237 ft100%
RED 31-29TFHMARATHON OIL COMPANYActive (A)10,222 ft100%
CINNINGER 14-32TFHMARATHON OIL COMPANYActive (A)10,114 ft100%
KLAY CARLSON 41-29TFHMARATHON OIL COMPANYActive (A)9,524 ft100%
DAN TUHY 14-32HMARATHON OIL COMPANYActive (A)9,360 ft100%
THORSTEIN 14-32HMARATHON OIL COMPANYActive (A)1,641 ft16%

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
  8. Order 30792Case 28334Designated the spacing unit, 8 wells allowedMARATHON OIL CO.
  9. Order 30824Case 28366Established the spacing unit, 8 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

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