Twentieth Century
Operator of record for 12 catalogued wells across 3 states. Every well below links to its full registry page.
Filed as: TWENTIETH CENTURY CO · TWENTIETH CENTURY CORP · TWENTIETH CENTURY CORPORATION
At a glance
Twentieth Century is the operator of record for 12 catalogued U.S. oil & gas wells in 3 states. None is listed as active, 11 (92%) are plugged & abandoned. Its largest concentration is in Colorado, with 9 wells (75% of its portfolio).
Wells operated
12
Active
0
Plugged
11
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Colorado | 9 |
| Wyoming | 2 |
| Kentucky | 1 |
Well mix
- Oil wells
- 2
- Gas wells
- 0
- Shut-in
- 0
- Active share
- 0%
Is this your company?
Claim Twentieth Century to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does Twentieth Century operate?
Twentieth Century's catalogued wells are spread across 3 states: Colorado (9), Wyoming (2) and Kentucky (1). Its 9 Colorado wells are 0.0% of the 124,327 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 Twentieth Century’s wells are active, plugged or orphaned?
0% of Twentieth Century's catalogued wells are active, 29 percentage points below the national share of 29%. 92% are plugged & abandoned, against 47% nationally. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does Twentieth Century operate?
By product class, 2 (17%) 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 1 Pierce in Logan, CO at 4,879 ft. The wells listed below sit in Logan (CO), Fremont (WY), Sweetwater (WY), Mccreary (KY) and Jackson (CO). State filings spell the name 3 ways; WellCensus merges exact-normalized spellings only, so subsidiaries and affiliates keep their own pages.
Notable wells operated by Twentieth Century
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| 1 Pierce | 05-075-05881 | Plugged & abandoned | Other type | Logan, CO | Twentieth Century Corp | 4,879 ft |
| Govt 1 | 49-013-20151 | Plugged & abandoned | Oil | Fremont, WY | Twentieth Century Corporation | 3,196 ft |
| Fed American Natural 1 | 49-037-20133 | Plugged & abandoned | Oil | Sweetwater, WY | Twentieth Century Corporation | 2,941 ft |
| Stearns Coal & Lumber Co 1 | 16-147-00228 | Plugged & abandoned | Other type | Mccreary, KY | Twentieth Century Co | 1,352 ft |
| 12-5 State | 05-057-06318 | Plugged & abandoned | Other type | Jackson, CO | Twentieth Century Corp | 575 ft |
| 1 Jeronimus-Bechtold State | 05-057-06184 | Plugged & abandoned | Other type | Jackson, CO | Twentieth Century Corp | 540 ft |
| 12-3 State | 05-057-06316 | Plugged & abandoned | Other type | Jackson, CO | Twentieth Century Corp | 465 ft |
| 101 State | 05-057-06299 | Plugged & abandoned | Other type | Jackson, CO | Twentieth Century Corp | 422 ft |
| 11-2 State | 05-057-06315 | Plugged & abandoned | Other type | Jackson, CO | Twentieth Century Corp | 400 ft |
| 1 Blevins "A" | 05-057-40019 | Plugged & abandoned | Other type | Jackson, CO | Twentieth Century Corp | 150 ft |
| 12-6 State | 05-057-06319 | Other status | Other type | Jackson, CO | Twentieth Century Corp | — |
| 12-4 State | 05-057-06317 | Plugged & abandoned | Other type | Jackson, CO | Twentieth Century Corp | — |
Deepest first where depth is published. See all 12 wells →
Frequently asked questions
How many wells does Twentieth Century operate?
Twentieth Century is the operator of record for 12 catalogued oil & gas wells, with the largest concentration in Colorado (9). Only wells in states WellCensus has ingested are counted.
How many of Twentieth Century's wells are still active?
0 of Twentieth Century's catalogued wells are active; 11 are plugged & abandoned.
In which states does Twentieth Century operate wells?
Twentieth Century is the operator of record for wells in Colorado (9), Wyoming (2) and Kentucky (1).
Does Twentieth Century operate mostly oil or gas wells?
2 of Twentieth Century's catalogued wells are oil wells and 0 are gas wells; the rest are injection, service or unclassified wells.
What is Twentieth Century's deepest well?
Among wells with a published depth, 1 Pierce in Logan, CO is the deepest at 4,879 ft.
Where Twentieth Century'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, “Twentieth Century — well portfolio”, https://wellcensus.com/operators/twentieth-century-3210 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).