FIELDS · WYOMING · FIELD f61c8d95d8f
Derby
Field · Fremont County
- 26
- active completions of 69 · 1 operators today
- 702
- bbl oil, 12 months through Aug 2026 · −90%
- 0
- Mcf gas, same 12 months
- 1.0M
- bbl oil since the record begins, Jan 1978 · 1,590 Mcf gas
Every well completed in it, searchable → · Median top perforation 1,248 ft
Reported production by month
12 months through Aug 2026 702 · prior 12 6,740(-90%)
Derby: Oil by month.
Operators
| Operator | Active | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|
| Valkyrie Operating LLC | 26 | 702 | 0 |
| Union Oil Co of California | 0 | — | — |
| Atlantic International | 0 | — | — |
| Peaker Don H | 0 | — | — |
| Wyoming Oil & Development Co | 0 | — | — |
| North American Energy | 0 | — | — |
| Pure Oil | 0 | — | — |
| Klabzuba Oil & Gas Inc | 0 | — | — |
| Mobil Expl & Producing North America Inc | 0 | — | — |
| Derby Dome Wyo Oil Co | 0 | — | — |
| Dunn & Shanor | 0 | — | — |
| Routt Oil Company | 0 | — | — |
| Barbe D F | 0 | — | — |
| Seaboard Oil | 0 | — | — |
Counties
- Fremont County26 active of 69
Largest completions
OIL, THEN GAS · 12 MONTHS THROUGH AUG 2026
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| J Carmody Patented 1-E | Valkyrie Operating LLC | Fremont | — | — | 125 | 0 |
| J Carmody 34-T | Valkyrie Operating LLC | Fremont | Mar 29, 1989 | — | 82 | 0 |
| J Carmody Patented 13-T | Valkyrie Operating LLC | Fremont | Nov 15, 1930 | — | 82 | 0 |
| Dunne 40 H | Valkyrie Operating LLC | Fremont | — | — | 71 | 0 |
| Carmody 39 | Valkyrie Operating LLC | Fremont | Jan 10, 1994 | — | 65 | 0 |
| J Carmody 6-T | Valkyrie Operating LLC | Fremont | Feb 23, 1964 | — | 36 | 0 |
| T Dunne C-044067 11 | Valkyrie Operating LLC | Fremont | Aug 20, 1924 | — | 30 | 0 |
| T Dunne C-044067B 3 | Valkyrie Operating LLC | Fremont | Aug 29, 1921 | — | 22 | 0 |
| J Carmody Ptented 7-T | Valkyrie Operating LLC | Fremont | Jul 17, 1922 | — | 22 | 0 |
| Dunne 35 | Valkyrie Operating LLC | Fremont | Aug 11, 1988 | — | 21 | 0 |
| Dunne 38 | Valkyrie Operating LLC | Fremont | — | — | 21 | 0 |
| J Carmody Patented 20-E | Valkyrie Operating LLC | Fremont | — | — | 19 | 0 |
| T Dunne 23 | Valkyrie Operating LLC | Fremont | Nov 4, 1963 | — | 17 | 0 |
| Dunne 36 | Valkyrie Operating LLC | Fremont | Sep 19, 1989 | — | 15 | 0 |
| Dunne 33 | Valkyrie Operating LLC | Fremont | — | — | 12 | 0 |
Latest completions
BY COMPLETION DATE
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| Dunne 40 H | Valkyrie Operating LLC | Fremont | May 12, 2003 | 1,614 | 0 | 0 |
| T Dunne 25 | Valkyrie Operating LLC | Fremont | May 3, 1997 | — | — | — |
| Carmody 39 | Valkyrie Operating LLC | Fremont | Jan 10, 1994 | — | 65 | 0 |
| Dunne 38 | Valkyrie Operating LLC | Fremont | Nov 20, 1989 | — | 0 | 0 |
| Dunne 36 | Valkyrie Operating LLC | Fremont | Sep 19, 1989 | — | 15 | 0 |
| Dunne 37 | Valkyrie Operating LLC | Fremont | Aug 10, 1989 | — | 0 | 0 |
| T Dunne 19 | Valkyrie Operating LLC | Fremont | Jun 22, 1989 | — | — | — |
| Dunne 18 | Valkyrie Operating LLC | Fremont | Jun 16, 1989 | — | 7 | 0 |
| J Carmody 34-T | Valkyrie Operating LLC | Fremont | Mar 29, 1989 | — | 82 | 0 |
| Dunne 35 | Valkyrie Operating LLC | Fremont | Aug 11, 1988 | — | 21 | 0 |
About this data
Wyoming Oil and Gas Conservation Commission's field registry, its well completions, and the volumes operators filed against the field on form 2, through Aug 2026. The Commission's production file names each well's current operator on every month, so an operator's figures are those of the wells it operates today. Nothing is estimated.
Developers: this page as JSON is GET /v1/data/fields/wy/f61c8d95d8f, documented in the API reference.