Monsanto Oil
Operator of record for 266 catalogued wells across 6 states. Every well below links to its full registry page.
Filed as: MONSANTO OIL CO · MONSANTO OIL CO. · MONSANTO OIL COMPANY · Monsanto Oil Co
At a glance
Monsanto Oil is the operator of record for 266 catalogued U.S. oil & gas wells in 6 states. 117 (44%) are active, 139 (52%) plugged & abandoned and 2 flagged as orphaned. Its largest concentration is in Texas, with 163 wells (61% of its portfolio).
Wells operated
266
Active
117
Plugged
139
Orphaned
2
Portfolio by state
| State | Wells |
|---|---|
| Texas | 163 |
| Louisiana | 66 |
| Colorado | 32 |
| Mississippi | 3 |
| Arkansas | 1 |
| New Mexico | 1 |
Well mix
- Oil wells
- 170
- Gas wells
- 24
- Shut-in
- 0
- Active share
- 44%
Is this your company?
Claim Monsanto Oil to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Monsanto Oil operate?
Monsanto Oil's catalogued wells are spread across 6 states: Texas (163), Louisiana (66), Colorado (32), Mississippi (3) and Arkansas (1) and 1 more. Its 66 Louisiana wells are 0.0% of the 225,728 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 Monsanto Oil’s wells are active, plugged or orphaned?
44% of Monsanto Oil's catalogued wells are active, 14 percentage points above the national share of 30%. 52% are plugged & abandoned, against 48% nationally. 2 wells filed under this name are flagged as orphaned — unplugged, with no operator able to plug them.
What kinds of wells does Monsanto Oil operate?
By product class, 170 (64%) are oil wells and 24 (9%) gas wells; nationally the shares are 45% and 18%. The deepest of its wells with a published depth is C E Wiley 001 in Acadia, LA at 14,531 ft. The wells listed below sit in Acadia (LA), Lafayette (LA), St Mary (LA), St Martin (LA), Vermilion (LA) and Cameron (LA) and other counties. State filings spell the name 4 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Monsanto Oil
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| C E Wiley 001 | 17-001-20301 | Plugged & abandoned | Other type | Acadia, LA | Monsanto Oil Company | 14,531 ft |
| Tortue 001 | 17-055-00192 | Plugged & abandoned | Oil | Lafayette, LA | Monsanto Oil Company | 13,525 ft |
| L Su C; J. Lucia Et Al 001 | 17-101-00689 | Plugged & abandoned | Oil | St Mary, LA | Monsanto Oil Company | 12,620 ft |
| U Bp Sub; Texaco Fee 001d | 17-099-01625 | Plugged & abandoned | Gas | St Martin, LA | Monsanto Oil Company | 12,526 ft |
| Cladies Lebouef 001 | 17-113-20108 | Plugged & abandoned | Oil | Vermilion, LA | Monsanto Oil Company | 12,400 ft |
| Morton Schwartz 001 | 17-113-20122 | Plugged & abandoned | Other type | Vermilion, LA | Monsanto Oil Company | 11,862 ft |
| L Su E; J. Lucia Et Al 003 | 17-101-00691 | Plugged & abandoned | Oil | St Mary, LA | Monsanto Oil Company | 11,825 ft |
| Cameron Meadows 001 | 17-023-20291 | Plugged & abandoned | Other type | Cameron, LA | Monsanto Oil Company | 11,198 ft |
| Warnock 1 | 03-027-01515 | Plugged & abandoned | Oil | Columbia, AR | Monsanto Oil Co | 11,003 ft |
| Bp Su H; Farms 001 | 17-099-01673 | Plugged & abandoned | Oil | St Martin, LA | Monsanto Oil Company | 10,974 ft |
| Bp Su F Octave 001 | 17-099-01711 | Plugged & abandoned | Oil | St Martin, LA | Monsanto Oil Company | 10,954 ft |
| Livestock 001 | 17-099-01670 | Plugged & abandoned | Other type | St Martin, LA | Monsanto Oil Company | 10,950 ft |
Deepest first where depth is published. See all 266 wells →
Frequently asked questions
How many wells does Monsanto Oil operate?
Monsanto Oil is the operator of record for 266 catalogued oil & gas wells, with the largest concentration in Texas (163). Only wells in states WellCensus has ingested are counted.
How many of Monsanto Oil's wells are still active?
117 of Monsanto Oil's catalogued wells are active; 139 are plugged & abandoned and 2 are flagged as orphaned.
In which states does Monsanto Oil operate wells?
Monsanto Oil is the operator of record for wells in Texas (163), Louisiana (66), Colorado (32), Mississippi (3), Arkansas (1) and New Mexico (1).
Does Monsanto Oil operate mostly oil or gas wells?
170 of Monsanto Oil's catalogued wells are oil wells and 24 are gas wells; the rest are injection, service or unclassified wells.
What is Monsanto Oil's deepest well?
Among wells with a published depth, C E Wiley 001 in Acadia, LA is the deepest at 14,531 ft.
Where Monsanto Oil's wells are
- Oil & gas wells in Texas· 163 operated by Monsanto Oil
- Oil & gas wells in Louisiana· 66 operated by Monsanto Oil
- Oil & gas wells in Colorado· 32 operated by Monsanto Oil
- Oil & gas wells in Mississippi· 3 operated by Monsanto Oil
- Oil & gas wells in Arkansas· 1 operated by Monsanto Oil
- Oil & gas wells in New Mexico· 1 operated by Monsanto Oil
- Largest U.S. well operators
- All well operators
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, “Monsanto Oil — well portfolio”, https://wellcensus.com/operators/monsanto-oil-3284 (data as of October 28, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).