Koch 31-18 Piekkola
API 4006320425 · Harding County, South Dakota · Buffalo field
Plugged and AbandonedOil
API
4006320425
Operator
Continental Resources Inc.
County
Harding
Field
Buffalo
Location
Permit
1348
Production
22 monthly filings with South Dakota, Jan 1985 to Oct 1986. Each product is in its own unit and the four are never added.
Cumulative oil
6,030 bbl
Cumulative gas
279 MCF
Cumulative water
47,054 bbl
| Period | Oil (bbl) | Gas (MCF) | Water (bbl) | Days |
|---|---|---|---|---|
| Oct 1986 | 0 | 0 | 0 | — |
| Sep 1986 | — | — | — | — |
| Aug 1986 | 23 | 8 | 111 | 1 |
| Jul 1986 | 167 | 12 | 1,554 | 14 |
| Jun 1986 | 33 | 12 | 222 | 2 |
| May 1986 | 51 | 19 | 555 | 5 |
| Apr 1986 | 119 | 43 | 1,221 | 11 |
| Mar 1986 | 331 | 120 | 3,441 | 31 |
| Feb 1986 | 363 | 31 | 3,106 | — |
| Jan 1986 | 405 | 0 | 3,632 | 31 |
| Dec 1985 | 396 | 34 | 3,534 | 31 |
| Nov 1985 | 364 | 0 | 3,192 | 30 |
| Oct 1985 | 293 | 0 | 2,883 | 31 |
| Sep 1985 | 310 | 0 | 2,703 | 30 |
| Aug 1985 | 363 | 0 | 2,815 | 30 |
| Jul 1985 | 192 | 0 | 1,543 | 17 |
| Jun 1985 | 400 | 0 | 2,775 | 29 |
| May 1985 | 428 | 0 | 2,648 | 30 |
| Apr 1985 | 446 | 0 | 2,981 | 30 |
| Mar 1985 | 431 | 0 | 2,376 | 30 |
| Feb 1985 | 503 | 0 | 962 | 27 |
| Jan 1985 | 412 | 0 | 4,800 | 30 |
A dash is a period the well filed with no volume for that product.
Formation tops
South Dakota records 6 formations for this well, shallowest first.
| Formation | Top (ft) | Age |
|---|---|---|
| Stonewall Limestone | 8,246 | Silurian/Ordovician |
| Gunton Member, Stony Mountain Formation | 8,296 | Ordovician |
| Stony Mountain Formation | 8,366 | Ordovician |
| Red River Formation | 8,408 | Ordovician |
| Unit A, Red River Formation | 8,408 | Ordovician |
| Unit B, Red River Formation | 8,436 | Ordovician |
A dash is a formation South Dakota records for this well without a depth.
Completion
South Dakota files 1 completion report for this well.
Vertical Well
Plugged and AbandonedOilSpudded
1984-11-23
Completed
1984-12-26
Measured depth
8,481 ft
True vertical depth
8,481 ft
Interval
| Formation | Perforated (ft) |
|---|---|
| Unit B, Red River Formation | 8,443–8,460 |
Location
45.701783, -103.553649
45.70178, -103.55365 · Surface location as filed with South Dakota⌘ or Ctrl + scroll to zoom
Every well in Harding County, South Dakota
South Dakota state record, from SD_wells_SDOILexport_Export__wells_Table_4_Web.parquet. Corpus built 2026-09-11.