O Brien Energy Resources
Operator of record for 271 catalogued wells across 4 states. Every well below links to its full registry page.
Filed as: O'BRIEN ENERGY RESOURCES CORP · O'BRIEN ENERGY RESOURCES CORPORATION · O'Brien Energy Resources Corp.
At a glance
O Brien Energy Resources is the operator of record for 271 catalogued U.S. oil & gas wells in 4 states. 109 (40%) are active, 103 (38%) plugged & abandoned. Its largest concentration is in Kansas, with 177 wells (65% of its portfolio).
Wells operated
271
Active
109
Plugged
103
Orphaned
0
Portfolio by state
| State | Wells |
|---|---|
| Kansas | 177 |
| Colorado | 57 |
| Wyoming | 25 |
| Oklahoma | 12 |
Well mix
- Oil wells
- 120
- Gas wells
- 82
- Shut-in
- 47
- Active share
- 40%
Is this your company?
Claim O Brien Energy Resources to keep this portfolio accurate — verified operators can correct well statuses and add plugging documentation.
Claim your operator profileWhere does O Brien Energy Resources operate?
O Brien Energy Resources's catalogued wells are spread across 4 states: Kansas (177), Colorado (57), Wyoming (25) and Oklahoma (12). Its 57 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 O Brien Energy Resources’s wells are active, plugged or orphaned?
40% of O Brien Energy Resources's catalogued wells are active, 11 percentage points above the national share of 29%. 38% are plugged & abandoned, against 47% nationally. 47 wells (17%) are shut-in — unplugged but idle. None of the wells filed under this name is flagged as orphaned.
What kinds of wells does O Brien Energy Resources operate?
By product class, 120 (44%) are oil wells and 82 (30%) gas wells; nationally the shares are 43% and 17%. The deepest of its wells with a published depth is Funny Rock Federal 1-X in Niobrara, WY at 8,820 ft. The wells listed below sit in Niobrara (WY), Campbell (WY), Weld (CO) and Clark (KS). 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 O Brien Energy Resources
| Well | API # / state ID | Status | Type | Location | Operator | Depth |
|---|---|---|---|---|---|---|
| Funny Rock Federal 1-X | 49-027-26595 | Plugged & abandoned | Oil | Niobrara, WY | O'Brien Energy Resources Corporation | 8,820 ft |
| Three Bar Creek 1 | 49-005-49480 | Plugged & abandoned | Oil | Campbell, WY | O'Brien Energy Resources Corporation | 8,700 ft |
| Clark 1 | 49-005-62022 | Shut-in | Oil | Campbell, WY | O'Brien Energy Resources Corporation | 8,606 ft |
| Snyder Creek 1 | 49-027-20990 | Plugged & abandoned | Oil | Niobrara, WY | O'Brien Energy Resources Corporation | 7,800 ft |
| Snyder Creek 2 | 49-027-21007 | Plugged & abandoned | Oil | Niobrara, WY | O'Brien Energy Resources Corporation | 7,700 ft |
| Wasserburger 31-12 | 49-027-20578 | Plugged & abandoned | Other type | Niobrara, WY | O'Brien Energy Resources Corporation | 7,454 ft |
| 20 Lost Creek Development | 05-123-22555 | Plugged & abandoned | Gas | Weld, CO | O'Brien Energy Resources Corp | 7,125 ft |
| Greasewood 12 | 49-027-26616 | Plugged & abandoned | Oil | Niobrara, WY | O'Brien Energy Resources Corporation | 7,045 ft |
| 16 Lost Creek | 05-123-22187 | Plugged & abandoned | Gas | Weld, CO | O'Brien Energy Resources Corp | 7,022 ft |
| Mary 2-1 | 15-025-21591 | Plugged & abandoned | Other type | Clark, KS | O'Brien Energy Resources Corp. | 7,020 ft |
| 1 Lost Channel | 05-123-24114 | Plugged & abandoned | Oil | Weld, CO | O'Brien Energy Resources Corp | 7,005 ft |
| 29 Lost Creek | 05-123-23237 | Active | Oil | Weld, CO | O'Brien Energy Resources Corp | 6,970 ft |
Deepest first where depth is published. See all 271 wells →
Frequently asked questions
How many wells does O Brien Energy Resources operate?
O Brien Energy Resources is the operator of record for 271 catalogued oil & gas wells, with the largest concentration in Kansas (177). Only wells in states WellCensus has ingested are counted.
How many of O Brien Energy Resources's wells are still active?
109 of O Brien Energy Resources's catalogued wells are active; 103 are plugged & abandoned.
In which states does O Brien Energy Resources operate wells?
O Brien Energy Resources is the operator of record for wells in Kansas (177), Colorado (57), Wyoming (25) and Oklahoma (12).
Does O Brien Energy Resources operate mostly oil or gas wells?
120 of O Brien Energy Resources's catalogued wells are oil wells and 82 are gas wells; the rest are injection, service or unclassified wells.
What is O Brien Energy Resources's deepest well?
Among wells with a published depth, Funny Rock Federal 1-X in Niobrara, WY is the deepest at 8,820 ft.
Where O Brien Energy Resources's wells are
- Oil & gas wells in Kansas· 177 operated by O Brien Energy Resources
- Oil & gas wells in Colorado· 57 operated by O Brien Energy Resources
- Oil & gas wells in Wyoming· 25 operated by O Brien Energy Resources
- Oil & gas wells in Oklahoma· 12 operated by O Brien Energy Resources
- 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 10, 2026 — WellCensus refreshes it monthly. See the methodology for how records are matched, cleaned and scored.
Cite as: WellCensus, “O Brien Energy Resources — well portfolio”, https://wellcensus.com/operators/o-brien-energy-resources-2853 (data as of October 10, 2026).
Dataset updated . Operator portfolios are resolved from raw state registry filings (exact-normalized names; subsidiaries stay separate).