BBakken SubsurfaceNorth Dakota well index

Spacing unit · Mountrail County

1,280-acre Bakken spacing unit

T153N R91W sections 22, 23

Spacing unit11 wells allowed · order 35866Sanish-Bakken

Unit facts

Formation
Bakken
Acres
1,280
Type
Spacing unit
Land described
T153N R91W sections 22, 23
Pool
Sanish-Bakken
Zone
Zone XXIII
County
Mountrail County
Surveyed wells inside
13
Most wells operated by
Chord / Enerplus / Oasis / Whiting
Unit id
dsu-71b52f1e2a48f85e2b49
Wells allowed by the latest linked order
11
Wells assigned to this unit
4
Pending permits inside
0
Balance under the allowance
-2
First linked order
Jul 27, 2007
Laterals that still fit (Nov 2026 method)
1 (0.95 two-mile equivalents)
Neighbourhood target density
8.43 two-mile laterals per 1,280 acres
Density drilled so far
7.81 per 1,280 acres

Room to drill: 1 lateral 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

MCNAMARA 41-26HMCNAMARA 41-26-2XHLOCKEN 11-22HMCNAMARA 41-26XHPAM LOCKEN 21-22TFHDARYL LOCKEN 21-22HMCNAMARA 42-26-3XHLittlefield 11-21-2HULBJ 24-14HUMCNAMARA 42-26HMCNAMARA 42-26-2XHNesheim 11-24HUMCNAMARA 42-26XH1 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
MCNAMARA 41-26HWHITING OIL AND GAS CORPORATIONActive (A)11,574 ft100%
MCNAMARA 41-26-2XHWHITING OIL AND GAS CORPORATIONActive (A)10,325 ft98%
LOCKEN 11-22HWHITING OIL AND GAS CORPORATIONActive (A)9,200 ft100%
MCNAMARA 41-26XHWHITING OIL AND GAS CORPORATIONActive (A)8,393 ft83%
PAM LOCKEN 21-22TFHWHITING OIL AND GAS CORPORATIONActive (A)8,281 ft100%
DARYL LOCKEN 21-22HWHITING OIL AND GAS CORPORATIONActive (A)8,044 ft100%
MCNAMARA 42-26-3XHWHITING OIL AND GAS CORPORATIONActive (A)7,026 ft67%
Littlefield 11-21-2HUWHITING OIL AND GAS CORPORATIONActive (A)4,767 ft50%
LBJ 24-14HUWHITING OIL AND GAS CORPORATIONActive (A)4,396 ft29%
MCNAMARA 42-26HWHITING OIL AND GAS CORPORATIONActive (A)4,058 ft42%
MCNAMARA 42-26-2XHWHITING OIL AND GAS CORPORATIONActive (A)2,890 ft30%
Nesheim 11-24HUWHITING OIL AND GAS CORPORATIONActive (A)2,289 ft24%
MCNAMARA 42-26XHWHITING OIL AND GAS CORPORATIONActive (A)1,430 ft15%

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 11199Case 9534Established the spacing unitWHITING OIL & GAS CORP.
  2. Order 11201Case 9536Pooled all interests in the unitWHITING OIL & GAS CORP.
  3. Order 11222Case 9556Designated the spacing unitSINCLAIR OIL & GAS CO.
  4. Order 13904Case 11743Designated the spacing unit, 4 wells allowedWHITING OIL & GAS CORP.
  5. Order 15653Case 13377Established the spacing unit, 6 wells allowedWHITING OIL & GAS CORP.
  6. Order 23196Case 20890Designated the spacing unit, 6 wells allowedMUREX PETROLEUM CORP.
  7. Order 22284Case 19977Designated the spacing unit, 8 wells allowedFIDELITY EXPLORATION & PRODUCTION CO.
  8. Order 22284Case 19977Listed the unit in a pool zone table, 6 wells allowedFIDELITY EXPLORATION & PRODUCTION CO.
  9. Order 22761Case 20455Designated the spacing unit, 8 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  10. Order 23316Case 21010Designated the spacing unit, 8 wells allowedSLAWSON EXPLORATION CO., INC.
  11. Order 23552Case 21248Designated the spacing unit, 6 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  12. Order 22755Case 20449Established the spacing unit, 11 wells allowedWHITING OIL AND GAS CORP.
  13. Order 24404Case 22070Designated the spacing unit, 11 wells allowedOASIS PETROLEUM NORTH AMERICA LLC
  14. Order 31505Case 28954Designated the spacing unitWHITING OIL AND GAS CORP.

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

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