John M Denman Oil
Operator of record for 154 catalogued wells across 1 state. Every well below links to its full registry page.
At a glance
John M Denman Oil is the operator of record for 154 catalogued U.S. oil & gas wells in 1 state. 2 (1%) are active, 122 (79%) plugged & abandoned and 7 flagged as orphaned. Its largest concentration is in Kansas, with 154 wells (100% of its portfolio).
Wells operated
154
Active
2
Plugged
122
Orphaned
7
Portfolio by state
| State | Wells |
|---|---|
| Kansas | 154 |
Well mix
- Oil wells
- 92
- Gas wells
- 1
- Shut-in
- 0
- Active share
- 1%
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Claim your operator profileWhere does John M Denman Oil operate?
John M Denman Oil's catalogued wells are spread across 1 state: Kansas (154). Its 154 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 (location indexes) and in states without a registry ingest are not yet attributed to any operator.
How many of John M Denman Oil’s wells are active, plugged or orphaned?
1% of John M Denman Oil's catalogued wells are active, 29 percentage points below the national share of 30%. 79% are plugged & abandoned, against 48% nationally. 7 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does John M Denman Oil operate?
By product class, 92 (60%) are oil wells and 1 (0.6%) gas wells; nationally the shares are 45% and 18%. The deepest of its wells with a published depth is Orton 21 in Chautauqua, KS at 5,970 ft.
Notable wells operated by John M Denman Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Orton 21 | 15-019-20312 | Plugged & abandoned | Oil | Chautauqua, KS | John M. Denman Oil Co., Inc. | 5,970 ft |
| Raymond Coulter 7 | 15-019-19192 | Orphaned | Oil | Chautauqua, KS | John M. Denman Oil Co., Inc. | 2,057 ft |
| J. Smith 10 | 15-019-26259 | Other status | Oil | Chautauqua, KS | John M. Denman Oil Co., Inc. | 1,600 ft |
| Mccall 9 | 15-019-26261 | Other status | Oil | Chautauqua, KS | John M. Denman Oil Co., Inc. | 1,600 ft |
| Newman 58 | 15-019-26263 | Plugged & abandoned | Oil | Chautauqua, KS | John M. Denman Oil Co., Inc. | 1,600 ft |
| Newman 15 | 15-019-19735 | Plugged & abandoned | Injection | Chautauqua, KS | John M. Denman Oil Co., Inc. | 1,595 ft |
| W. W. Smith 5 | 15-019-19071 | Plugged & abandoned | Injection | Chautauqua, KS | John M. Denman Oil Co., Inc. | 1,562 ft |
| Scott S-1 | 15-019-27212 | Plugged & abandoned | Oil | Chautauqua, KS | John M. Denman Oil Co., Inc. | 1,540 ft |
| Mccall 1 | 15-019-19286 | Plugged & abandoned | Injection | Chautauqua, KS | John M. Denman Oil Co., Inc. | 1,529 ft |
| Keith 1 | 15-019-19718 | Plugged & abandoned | Injection | Chautauqua, KS | John M. Denman Oil Co., Inc. | 1,512 ft |
| Lemmon 17 | 15-019-19033 | Plugged & abandoned | Injection | Chautauqua, KS | John M. Denman Oil Co., Inc. | 1,503 ft |
| Mccall 5 | 15-019-19016 | Plugged & abandoned | Injection | Chautauqua, KS | John M. Denman Oil Co., Inc. | 1,500 ft |
Deepest first where depth is published. See all 154 wells →
Frequently asked questions
How many wells does John M Denman Oil operate?
John M Denman Oil is the operator of record for 154 catalogued oil & gas wells, with the largest concentration in Kansas (154). Only wells in states WellCensus has ingested are counted.
How many of John M Denman Oil's wells are still active?
2 of John M Denman Oil's catalogued wells are active; 122 are plugged & abandoned and 7 are flagged as orphaned.
In which states does John M Denman Oil operate wells?
John M Denman Oil is the operator of record for wells in Kansas (154).
Does John M Denman Oil operate mostly oil or gas wells?
92 of John M Denman Oil's catalogued wells are oil wells and 1 are gas wells; the rest are injection, service or unclassified wells.
What is John M Denman Oil's deepest well?
Among wells with a published depth, Orton 21 in Chautauqua, KS is the deepest at 5,970 ft.
Where John M Denman Oil'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 28, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: WellCensus, “John M Denman Oil — well portfolio”, https://wellcensus.com/operators/john-m-denman-oil-82192 (data as of October 28, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).