Miller Io
Operator of record for 10 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
Miller Io is the operator of record for 10 catalogued U.S. oil & gas wells in 1 state. None is listed as active, 9 (90%) are plugged & abandoned. Its largest concentration is in Kansas, with 10 wells (100% of its portfolio).
Wells operated
10
Active
0
Plugged
9
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Kansas | 10 |
Well mix
- Oil wells
- 5
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
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Claim your operator profileWhere does Miller Io operate?
Miller Io's catalogued wells are spread across 1 state: Kansas (10). Its 10 Kansas wells are 0.0% of the 473,140 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 Miller Io’s wells are active, plugged or orphaned?
0% of Miller Io's catalogued wells are active, 29 percentage points below the national share of 29%. 90% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Miller Io operate?
By product class, 5 (50%) 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 Croffoot 'C' 5 in Rooks, KS at 4,250 ft. The wells listed below sit in Rooks (KS), Saline (KS), Butler (KS) and Greenwood (KS).
Notable wells operated by Miller Io
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Croffoot 'C' 5 | 15-163-03645 | Plugged & abandoned | Injection | Rooks, KS | Miller, I. O., Inc. | 4,250 ft |
| Pywell 'B' 2 | 15-163-02529 | Plugged & abandoned | Injection | Rooks, KS | Miller, I. O., Inc. | 4,240 ft |
| Croffoot 8 | 15-163-02055 | Plugged & abandoned | Oil | Rooks, KS | Miller, I. O., Inc. | 3,817 ft |
| Croffoot 7 | 15-163-02054 | Plugged & abandoned | Oil | Rooks, KS | Miller, I. O., Inc. | 3,803 ft |
| Croffoot 5 | 15-163-02052 | Plugged & abandoned | Oil | Rooks, KS | Miller, I. O., Inc. | 3,803 ft |
| Croffoot 2 | 15-163-02049 | Plugged & abandoned | Oil | Rooks, KS | Miller, I. O., Inc. | 3,803 ft |
| Croffoot 4 | 15-163-02051 | Plugged & abandoned | Oil | Rooks, KS | Miller, I. O., Inc. | 3,793 ft |
| Mortimer 2 | 15-169-00691 | Plugged & abandoned | Other type | Saline, KS | Miller, I. O., Inc. | 2,637 ft |
| Greenwell-Fuller 1-A | 15-015-20085 | Plugged & abandoned | Other type | Butler, KS | Miller, I. O., Inc. | 965 ft |
| Laird 1 | 15-073-20548 | Other status | Other type | Greenwood, KS | Miller, I. O., Inc. | — |
Deepest first where depth is published. See all 10 wells →
Frequently asked questions
How many wells does Miller Io operate?
Miller Io is the operator of record for 10 catalogued oil & gas wells, with the largest concentration in Kansas (10). Only wells in states WellCensus has ingested are counted.
How many of Miller Io's wells are still active?
0 of Miller Io's catalogued wells are active; 9 are plugged & abandoned.
In which states does Miller Io operate wells?
Miller Io is the operator of record for wells in Kansas (10).
Does Miller Io operate mostly oil or gas wells?
5 of Miller Io's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Miller Io's deepest well?
Among wells with a published depth, Croffoot 'C' 5 in Rooks, KS is the deepest at 4,250 ft.
Where Miller Io'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, “Miller Io — well portfolio”, https://wellcensus.com/operators/miller-io-78642 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).