Marco Oil
Operator of record for 107 catalogued wells across 4 states. Every well below links to its full registry page.
Filed as: MARCO OIL CO · MARCO OIL CO, INC · MARCO OIL COMPANY · MARCO OIL COMPANY LLC · …
At a glance
Marco Oil is the operator of record for 107 catalogued U.S. oil & gas wells in 4 states. 84 (79%) are active, 6 (6%) plugged & abandoned and 6 flagged as orphaned. Its largest concentration is in Oklahoma, with 86 wells (80% of its portfolio).
Wells operated
107
Active
84
Plugged
6
Orphaned
6
Portfolio by state
| State | Wells |
|---|---|
| Oklahoma | 86 |
| Kansas | 10 |
| Kentucky | 10 |
| Illinois | 1 |
Well mix
- Oil wells
- 85
- Gas wells
- 2
- Shut-in
- 1
- Active share
- 79%
Is this your company?
Claim Marco Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Marco Oil operate?
Marco Oil's catalogued wells are spread across 4 states: Oklahoma (86), Kansas (10), Kentucky (10) and Illinois (1). Its 86 Oklahoma wells are 0.0% of the 456,595 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 Marco Oil’s wells are active, plugged or orphaned?
79% of Marco Oil's catalogued wells are active, 50 percentage points above the national share of 29%. 6% are plugged & abandoned, against 47% nationally. 1 wells (0.9%) are shut-in — unplugged but idle. 6 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Marco Oil operate?
By product class, 85 (79%) are oil wells and 2 (2%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Messman, R.A. 1-A in Edwards, IL at 3,050 ft. The wells listed below sit in Edwards (IL), Chautauqua (KS) and Lee (KY). State filings spell the name 6 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Marco Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Messman, R.A. 1-A | 12-047-22231 | Active | Oil | Edwards, IL | Marco Oil | 3,050 ft |
| T-Bone 2 | 15-019-24051 | Active | Oil | Chautauqua, KS | MARCO Oil Company LLC | 2,188 ft |
| T-Bone 8 | 15-019-25080 | Active | Oil | Chautauqua, KS | MARCO Oil Company LLC | 2,170 ft |
| T-Bone 7 | 15-019-25006 | Shut-in | Oil | Chautauqua, KS | MARCO Oil Company LLC | 2,160 ft |
| T-Bone 9 | 15-019-25203 | Plugged & abandoned | Oil | Chautauqua, KS | MARCO Oil Company LLC | 2,110 ft |
| T-Bone 6 | 15-019-24828 | Plugged & abandoned | Oil | Chautauqua, KS | MARCO Oil Company LLC | 2,050 ft |
| T-Bone 3 | 15-019-24160 | Active | Oil | Chautauqua, KS | MARCO Oil Company LLC | 2,040 ft |
| T-Bone 4 | 15-019-24409 | Active | Oil | Chautauqua, KS | MARCO Oil Company LLC | 2,030 ft |
| T-Bone 10 | 15-019-25356 | Active | Oil | Chautauqua, KS | MARCO Oil Company LLC | 2,010 ft |
| T. Bone 5 | 15-019-24513 | Active | Oil | Chautauqua, KS | MARCO Oil Company LLC | 2,005 ft |
| T-Bone 1 | 15-019-23855 | Plugged & abandoned | Injection | Chautauqua, KS | MARCO Oil Company LLC | 1,984 ft |
| Mays, John Heirs 4 | 16-129-00434 | Active | Oil | Lee, KY | Marco Oil Co, Inc | 1,398 ft |
Deepest first where depth is published. See all 107 wells →
Frequently asked questions
How many wells does Marco Oil operate?
Marco Oil is the operator of record for 107 catalogued oil & gas wells, with the largest concentration in Oklahoma (86). Only wells in states WellCensus has ingested are counted.
How many of Marco Oil's wells are still active?
84 of Marco Oil's catalogued wells are active; 6 are plugged & abandoned and 6 are flagged as orphaned.
In which states does Marco Oil operate wells?
Marco Oil is the operator of record for wells in Oklahoma (86), Kansas (10), Kentucky (10) and Illinois (1).
Does Marco Oil operate mostly oil or gas wells?
85 of Marco Oil's catalogued wells are oil wells and 2 are gas wells; the rest are injection, service or unclassified wells.
What is Marco Oil's deepest well?
Among wells with a published depth, Messman, R.A. 1-A in Edwards, IL is the deepest at 3,050 ft.
Where Marco 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 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: WellCensus, “Marco Oil — well portfolio”, https://wellcensus.com/operators/marco-oil-7547 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).