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Wednesday, December 28, 2011

A Random Look At Madiison Wells In Small Area of the Little Knife Oil Field

These are some inexpensive vertical wells that were drilled back in the late 1970s. They are located in a relatively small area in the Little Knife oil field. To the best of my knowledge, the Madison "boom" did not end because the formation was no longer productive, but because the price of oil dropped out the bottom.

These wells were not cherry-picked. I simply listed the wells in this area that had 6XXX and 7XXXX file numbers; about half are now abandoned; about half are still producing, 30+ years later.

Most (all?) are 160-acre spacing (four of these wells in a section); all are Madison wells except a couple as noted otherwise (Duperow; several have multiple pay zones, but Madison was the predominant one in those cases). Original operator generally not Petro-Hunt.
  • 6228, 201 (Duperow), Petro-Hunt, Zablolotny 1-3-4A, t9/78; cum 1.7 million bbls (Madison);
  • 6225, 1,392, Petro-Hunt, Zabolotny 2-3-3A, s10/77; t12/77; cum 3 million bbls
  • 6427, 1,090, Petro-Hunt, George Hurinenko 2-2-4A, s8/78; t9/78; cum 660K bbls
  • 6752, 437, Petro-Hunt, Hurinenko State 1-2-3A, s10/78; t12/78; cum 142K bbls
  • 6568, 721, Gulf Oil, J and G Hurinenko 1-1-4A, s6/78; t7/78; cum 78K bbls
  • 7297, 105, Petro-Hunt, J and G Hurinenko 2-1-3A, s10/79; t12/79; cum 179K bbls
  • 7426, 100, Petro--Hunt, Gary Houghton 1-6-4D, s1/80; 7/80; cum 183K bbls
  • 6280, 877, Petro-Hunt, Tarnavsky 1-9-2D, s10/77; t1/78; cum 1.43 million bbls
  • 7400, 64 (Duperow), Petro-Hunt, Tarnavsky 3-9-2B, s11/79; t7/80; cum 125K bbls
  • 6211, 852, Petro-Hunt, Hurinenko 2-10-1A, s9/77; t1/78; cum 4.2 million bbls
  • 6217, 1,041, Petro-Hunt, Hurinenko 1-10-2A, s8/77; t10/77; cum 2.1 million bbls
  • 6423, 365, Petro-Hunt, Tedrow 1-11-1A, s8/78; t9/78; cum 306K bbls
  • 6772, 553, Petro-Hunt, Tedrow 3-11-2A, s2/79; t5/79; cum 268K bbls
  • 7090, 75, Chevron, Tedrow 5-12-1D, s7/79; t3/80; cum 86K bbls
  • 7191, 230, Gulf Oil, Tedrow 6-12-2A, s9/79; t12/79; cum 43K
  • 6252, 852, Petro-Hunt, Hurinenko 2-10-1A, s1/78; t 1/78; cum 4.2 million bbls
  • 6164, 473, Petro-Hunt, Miller 3-10-4B, s5/77; t7/77; cum 1.1 million bbls
  • 6095, 442, Petro-Hunt, E E Miller 1-10-3A, s3/77; t6/7; cum 677K bbls
  • 6425, 433, Petro-Hunt, Tedrow 2-11-4A, s7/78; t8/78; cum 204K bbls
Cumulative production: in the millions of barrels for many of these wells; Bakken well EURs --> 500,000 to 900,000

160-acre spacing: would you rather own 10 acres on 160-acre spaced million-bbl well or a 10 acres on a 1280-acre spaced unit with 500,000 bbl well?

Inexpensive to drill; vertical; not hydraulically fracked.

More could be written, but time to move on.

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