Dillier & Knierim
Operator of record for 51 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Dillier & Knierim is the operator of record for 51 catalogued U.S. oil & gas wells in 1 state. 46 (90%) are active, 5 (10%) plugged & abandoned. Its largest concentration is in Illinois, with 51 wells (100% of its portfolio).
Wells operated
51
Active
46
Plugged
5
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 51 |
Well mix
- Oil wells
- 39
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 90%
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Claim your operator profileWhere does Dillier & Knierim operate?
Dillier & Knierim's catalogued wells are spread across 1 state: Illinois (51). Its 51 Illinois wells are 0.0% of the 174,478 catalogued in that state — its largest share of any state. Counts cover only states whose registries WellCensus has ingested with operator names; wells in Nebraska and Texas (location indexes) and in states without a registry ingest are not yet attributed to any operator.
How many of Dillier & Knierim’s wells are active, plugged or orphaned?
90% of Dillier & Knierim's catalogued wells are active, 61 percentage points above the national share of 29%. 10% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Dillier & Knierim operate?
By product class, 39 (76%) are oil wells and 0 (0%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Markwell 17 in Clark, IL at 382 ft.
Notable wells operated by Dillier & Knierim
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Markwell 17 | 12-023-25746 | Plugged & abandoned | Other type | Clark, IL | Dillier & Knierim Co., Inc. | 382 ft |
| Pinnell 2 | 12-023-25849 | Active | Oil | Clark, IL | Dillier & Knierim Co., Inc. | 363 ft |
| Pinnell 4 | 12-023-25850 | Active | Oil | Clark, IL | Dillier & Knierim Co., Inc. | 361 ft |
| Markwell 1 | 12-023-25676 | Active | Oil | Clark, IL | Dillier & Knierim Co., Inc. | 360 ft |
| Pinnell 3 | 12-023-25832 | Active | Oil | Clark, IL | Dillier & Knierim Co., Inc. | 360 ft |
| Black 9 | 12-023-25692 | Plugged & abandoned | Oil | Clark, IL | Dillier & Knierim Co., Inc. | 358 ft |
| Markwell 14 | 12-023-25742 | Plugged & abandoned | Other type | Clark, IL | Dillier & Knierim Co., Inc. | 356 ft |
| Pinnell 2-WI | 12-023-25831 | Active | Injection | Clark, IL | Dillier & Knierim Co., Inc. | 356 ft |
| Markwell 4 | 12-023-25679 | Active | Oil | Clark, IL | Dillier & Knierim Co., Inc. | 355 ft |
| Pinnell 6 | 12-023-25858 | Active | Oil | Clark, IL | Dillier & Knierim Co., Inc. | 354 ft |
| Markwell 13 | 12-023-25699 | Active | Oil | Clark, IL | Dillier & Knierim Co., Inc. | 353 ft |
| Pinnell 1 | 12-023-25866 | Active | Oil | Clark, IL | Dillier & Knierim Co., Inc. | 352 ft |
Deepest first where depth is published. See all 51 wells →
Frequently asked questions
How many wells does Dillier & Knierim operate?
Dillier & Knierim is the operator of record for 51 catalogued oil & gas wells, with the largest concentration in Illinois (51). Only wells in states WellCensus has ingested are counted.
How many of Dillier & Knierim's wells are still active?
46 of Dillier & Knierim's catalogued wells are active; 5 are plugged & abandoned.
In which states does Dillier & Knierim operate wells?
Dillier & Knierim is the operator of record for wells in Illinois (51).
Does Dillier & Knierim operate mostly oil or gas wells?
39 of Dillier & Knierim's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Dillier & Knierim's deepest well?
Among wells with a published depth, Markwell 17 in Clark, IL is the deepest at 382 ft.
Where Dillier & Knierim's wells are
About this data
Source: State oil & gas regulator registries (operator of record as filed, exact-normalized across states) plus the USGS United States Documented Orphaned Well Database (2026), as published October 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: WellCensus, “Dillier & Knierim — well portfolio”, https://wellcensus.com/operators/dillier-knierim-93195 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).