BBakken SubsurfaceNorth Dakota well index

Spacing unit · Dunn County

1,280-acre Bakken spacing unit

T149N R92W sections 12, 13

Spacing unit5 wells allowed · order 35852Heart Butte-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T149N R92W sections 12, 13
Pool
Heart Butte-Bakken
Zone
Zone XXVII
County
Dunn County
Surveyed wells inside
9
Most wells operated by
Devon Energy
DMR case / order on the footprint
11447 /
Unit id
dsu-d3034e5aef48e5620905
Wells allowed by the latest linked order
5
Wells assigned to this unit
4
Pending permits inside
0
Balance under the allowance
-4
First linked order
Sep 28, 2009
Laterals that still fit (Nov 2026 method)
2 (1.9 two-mile equivalents)
Neighbourhood target density
8.81 two-mile laterals per 1,280 acres
Density drilled so far
5.04 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

FBIR WALTERPACKSWOLF 31X-12CFBIR WALTERPACKSWOLF 31X-12DFBIR WALTERPACKSWOLF 31X-12HFBIR WALTERPACKSWOLF 31X-12GFBIR JOHNSON 13X-7BFBIR JOHNSON 13X-7HFBIR JOHNSON 13X-7CFBIR JOHNSON 13X-7GFBIR JOHNSON 13X-7F1 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
FBIR WALTERPACKSWOLF 31X-12CDEVON ENERGY WILLISTON, L.L.C.Active (A)11,235 ft100%
FBIR WALTERPACKSWOLF 31X-12DDEVON ENERGY WILLISTON, L.L.C.Active (A)9,630 ft100%
FBIR WALTERPACKSWOLF 31X-12HDEVON ENERGY WILLISTON, L.L.C.Active (A)9,526 ft100%
FBIR WALTERPACKSWOLF 31X-12GDEVON ENERGY WILLISTON, L.L.C.Active (A)9,345 ft100%
FBIR JOHNSON 13X-7BDEVON ENERGY WILLISTON, L.L.C.Active (A)3,079 ft29%
FBIR JOHNSON 13X-7HDEVON ENERGY WILLISTON, L.L.C.Active (A)2,894 ft28%
FBIR JOHNSON 13X-7CDEVON ENERGY WILLISTON, L.L.C.Active (A)2,485 ft24%
FBIR JOHNSON 13X-7GDEVON ENERGY WILLISTON, L.L.C.Active (A)2,485 ft21%
FBIR JOHNSON 13X-7FDEVON ENERGY WILLISTON, L.L.C.Active (A)2,459 ft24%

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 13568Case 11447Established the spacing unitXTO ENERGY INC.
  2. Order 13817Case 11669Designated the spacing unitQUESTAR EXPL. AND PROD. CO.
  3. Order 14375Case 12125Designated the spacing unitKODIAK OIL & GAS (USA) INC.
  4. Order 14494Case 12243Designated the spacing unit, 2 wells allowedPEAK NORTH DAKOTA, LLC
  5. Order 16640Case 14363Designated the spacing unit, 6 wells allowedENERPLUS RESOURCES (U.S.A.) INC.
  6. Order 17367Case 15119Established the spacing unit, 6 wells allowedXTO ENERGY INC.
  7. Order 17625Case 15379Designated the spacing unit, 4 wells allowedQEP ENERGY CO.
  8. Order 17625Case 15379Listed the unit in a pool zone table, 6 wells allowedQEP ENERGY CO.
  9. Order 18717Case 16451Designated the spacing unit, 6 wells allowedENERPLUS RESOURCES (U.S.A.) INC.
  10. Order 18222Case 15960Designated the spacing unit, 8 wells allowedDAKOTA-3 E&P CO., LLC
  11. Order 20494Case 18225Designated the spacing unit, 8 wells allowedKODIAK OIL & GAS (USA) INC.
  12. Order 21676Case 19373Established the spacing unit, 8 wells allowedXTO ENERGY INC.
  13. Order 26814Case 24448Designated the spacing unit, 8 wells allowedWHITING OIL AND GAS CORP.
  14. Order 26745Case 24378Designated the spacing unit, 12 wells allowedQEP ENERGY CO.
  15. Order 26872Case 24506Designated the spacing unit, 12 wells allowedQEP ENERGY CO.
  16. Order 27023Case 24659Established the spacing unit, 12 wells allowedXTO ENERGY INC.
  17. Order 30238Case 27789Designated the spacing unit, 4 wells allowedWPX ENERGY WILLISTON, LLC
  18. Order 30489Case 28036Established the spacing unit, 4 wells allowedXTO ENERGY INC.
  19. Order 32352Case 29745Designated the spacing unit, 4 wells allowedWPX ENERGY WILLISTON, LLC
  20. Order 32350Case 29743Designated the spacing unit, 5 wells allowedWPX ENERGY WILLISTON, LLC
  21. Order 32424Case 29816Established the spacing unit, 5 wells allowedWPX ENERGY WILLISTON, LLC

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

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