Graham Michaelis Drilling
Operator of record for 63 catalogued wells across 3 states. Every well below links to its full registry page.
Filed as: GRAHAM-MICHAELIS DRILLING CO · GRAHAM-MICHAELIS DRILLING CO INC
At a glance
Graham Michaelis Drilling is the operator of record for 63 catalogued U.S. oil & gas wells in 3 states. 24 (38%) are active, 37 (59%) plugged & abandoned and 4 flagged as orphaned. Its largest concentration is in Kentucky, with 50 wells (79% of its portfolio).
Wells operated
63
Active
24
Plugged
37
Orphaned
4
Portfolio by state
| State | Wells |
|---|---|
| Kentucky | 50 |
| Colorado | 12 |
| Wyoming | 1 |
Well mix
- Oil wells
- 8
- Gas wells
- 36
- Shut-in
- 0
- Active share
- 38%
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Claim your operator profileWhere does Graham Michaelis Drilling operate?
Graham Michaelis Drilling's catalogued wells are spread across 3 states: Kentucky (50), Colorado (12) and Wyoming (1). Its 50 Kentucky wells are 0.0% of the 201,022 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 Graham Michaelis Drilling’s wells are active, plugged or orphaned?
38% of Graham Michaelis Drilling's catalogued wells are active, 9 percentage points above the national share of 29%. 59% are plugged & abandoned, against 47% nationally. 4 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Graham Michaelis Drilling operate?
By product class, 8 (13%) are oil wells and 36 (57%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Federal W-11328 1 in Weston, WY at 6,925 ft. The wells listed below sit in Weston (WY), Logan (CO), Sedgwick (CO) and Bell (KY). 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 Graham Michaelis Drilling
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Federal W-11328 1 | 49-045-20467 | Plugged & abandoned | Oil | Weston, WY | Graham-Michaelis Drilling Co | 6,925 ft |
| 1 Nimmo-Crow | 05-075-07537 | Plugged & abandoned | Other type | Logan, CO | Graham-Michaelis Drilling Co | 4,240 ft |
| 1 Kennedy | 05-075-06150 | Plugged & abandoned | Other type | Logan, CO | Graham-Michaelis Drilling Co | 4,230 ft |
| 1 Lyle Scott | 05-075-06764 | Plugged & abandoned | Other type | Logan, CO | Graham-Michaelis Drilling Co | 4,224 ft |
| 1 Everett Davis | 05-075-05870 | Plugged & abandoned | Other type | Logan, CO | Graham-Michaelis Drilling Co | 4,215 ft |
| 1 Fred Swisher | 05-075-05776 | Plugged & abandoned | Other type | Logan, CO | Graham-Michaelis Drilling Co | 4,200 ft |
| 1 Yost | 05-075-06119 | Plugged & abandoned | Other type | Logan, CO | Graham-Michaelis Drilling Co | 4,200 ft |
| 1 Haynes | 05-075-05805 | Plugged & abandoned | Other type | Logan, CO | Graham-Michaelis Drilling Co | 4,177 ft |
| 1 Donaldson | 05-115-05015 | Plugged & abandoned | Gas | Sedgwick, CO | Graham-Michaelis Drilling Co | 4,065 ft |
| 1-36a State | 05-115-05014 | Plugged & abandoned | Other type | Sedgwick, CO | Graham-Michaelis Drilling Co | 4,050 ft |
| Asher Coal Co 2 | 16-013-00422 | Plugged & abandoned | Other type | Bell, KY | Graham-Michaelis Drilling Co Inc | 3,650 ft |
| Viall, R E 1 | KGS record 77070 | Active | Oil | Bell, KY | Graham-Michaelis Drilling Co Inc | 3,480 ft |
Deepest first where depth is published. See all 63 wells →
Frequently asked questions
How many wells does Graham Michaelis Drilling operate?
Graham Michaelis Drilling is the operator of record for 63 catalogued oil & gas wells, with the largest concentration in Kentucky (50). Only wells in states WellCensus has ingested are counted.
How many of Graham Michaelis Drilling's wells are still active?
24 of Graham Michaelis Drilling's catalogued wells are active; 37 are plugged & abandoned and 4 are flagged as orphaned.
In which states does Graham Michaelis Drilling operate wells?
Graham Michaelis Drilling is the operator of record for wells in Kentucky (50), Colorado (12) and Wyoming (1).
Does Graham Michaelis Drilling operate mostly oil or gas wells?
8 of Graham Michaelis Drilling's catalogued wells are oil wells and 36 are gas wells; the rest are injection, service or unclassified wells.
What is Graham Michaelis Drilling's deepest well?
Among wells with a published depth, Federal W-11328 1 in Weston, WY is the deepest at 6,925 ft.
Where Graham Michaelis Drilling'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, “Graham Michaelis Drilling — well portfolio”, https://wellcensus.com/operators/graham-michaelis-drilling-8054 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).