Shaffer
Operator of record for 214 catalogued wells across 3 states. Every well below links to its full registry page.
Filed as: SHAFFER · Shaffer
At a glance
Shaffer is the operator of record for 214 catalogued U.S. oil & gas wells in 3 states. 21 (10%) are active, 36 (17%) plugged & abandoned. Its largest concentration is in Illinois, with 206 wells (96% of its portfolio).
Wells operated
214
Active
21
Plugged
36
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Illinois | 206 |
| Montana | 7 |
| Kentucky | 1 |
Well mix
- Oil wells
- 49
- Gas wells
- 1
- Shut-in
- 45
- Active share
- 10%
Is this your company?
Claim Shaffer to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Shaffer operate?
Shaffer's catalogued wells are spread across 3 states: Illinois (206), Montana (7) and Kentucky (1). Its 206 Illinois wells are 0.1% 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 Shaffer’s wells are active, plugged or orphaned?
10% of Shaffer's catalogued wells are active, 19 percentage points below the national share of 29%. 17% are plugged & abandoned, against 47% nationally. 45 wells (21%) are shut-in — unplugged but idle. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Shaffer operate?
By product class, 49 (23%) are oil wells and 1 (0.5%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Gray, A. 2 in Lawrence, IL at 2,013 ft. The wells listed below sit in Lawrence (IL) and Petroleum (MT). State filings spell the name 2 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Shaffer
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Gray, A. 2 | 12-101-09392 | Other status | Other type | Lawrence, IL | Shaffer | 2,013 ft |
| Finley, W. E. 38 | 12-101-08859 | Other status | Other type | Lawrence, IL | Shaffer | 1,880 ft |
| Dumphy 2A | 25-069-06623 | Plugged & abandoned | Other type | Petroleum, MT | Shaffer | 1,790 ft |
| Well 1 | 25-069-06620 | Plugged & abandoned | Other type | Petroleum, MT | Shaffer | 1,777 ft |
| Finley, W. E. 14 | 12-101-08845 | Shut-in | Other type | Lawrence, IL | Shaffer | 1,706 ft |
| Finley, W. E. 17 | 12-101-08847 | Other status | Other type | Lawrence, IL | Shaffer | 1,644 ft |
| Finley, W. E. 39 | 12-101-08860 | Other status | Other type | Lawrence, IL | Shaffer | 1,634 ft |
| Finley, W. E. 40 | 12-101-08861 | Active | Oil | Lawrence, IL | Shaffer | 1,624 ft |
| Finley, W. E. 36 | 12-101-08943 | Active | Oil | Lawrence, IL | Shaffer | 1,621 ft |
| Finley, W. E. 23 | 12-101-08852 | Other status | Other type | Lawrence, IL | Shaffer | 1,616 ft |
| Finley, W. E. 34 | 12-101-08858 | Other status | Other type | Lawrence, IL | Shaffer | 1,612 ft |
| Finley, W. E. 22 | 12-101-08851 | Other status | Other type | Lawrence, IL | Shaffer | 1,608 ft |
Deepest first where depth is published. See all 214 wells →
Frequently asked questions
How many wells does Shaffer operate?
Shaffer is the operator of record for 214 catalogued oil & gas wells, with the largest concentration in Illinois (206). Only wells in states WellCensus has ingested are counted.
How many of Shaffer's wells are still active?
21 of Shaffer's catalogued wells are active; 36 are plugged & abandoned.
In which states does Shaffer operate wells?
Shaffer is the operator of record for wells in Illinois (206), Montana (7) and Kentucky (1).
Does Shaffer operate mostly oil or gas wells?
49 of Shaffer's catalogued wells are oil wells and 1 are gas wells; the rest are injection, service or unclassified wells.
What is Shaffer's deepest well?
Among wells with a published depth, Gray, A. 2 in Lawrence, IL is the deepest at 2,013 ft.
Where Shaffer'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, “Shaffer — well portfolio”, https://wellcensus.com/operators/shaffer-93049 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).