FIELDS · WYOMING · FIELD f31fbffb7f3
Krejci
Field · Niobrara County
- 1
- active completions of 11 · 1 operators today
- 58
- bbl oil, 12 months through Aug 2026 · +49%
- 0
- Mcf gas, same 12 months
- 84,037
- bbl oil since Apr 1979 · 69,130 Mcf gas
Every well completed in it, searchable → · Median top perforation 7,557 ft
Reported production by month
12 months through Aug 2026 58 · prior 12 39(+49%)
Krejci: Oil by month.
Operators
| Operator | Active | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|
| Krejci Harry L | 1 | 58 | 0 |
| Chesapeake Operating LLC | 0 | 0 | 0 |
| Three Forks Resources LLC | 0 | 0 | 0 |
| Union Oil Co of California | 0 | — | — |
| Dugger William L Jr | 0 | — | — |
| Arrowhead Exploration Co | 0 | — | — |
Counties
- Niobrara County1 active of 11
Largest completions
OIL, THEN GAS · 12 MONTHS THROUGH AUG 2026
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| Unit 1 | Krejci Harry L | Niobrara | Jul 27, 1962 | — | 58 | 0 |
Latest completions
BY COMPLETION DATE
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| Krejci Family Trust 32 1-H | Chesapeake Operating LLC | Niobrara | Apr 19, 2008 | 7,557 | 0 | 0 |
| Werner 14 1H | Chesapeake Operating LLC | Niobrara | Jul 19, 2007 | 7,090 | 0 | 0 |
| Krejci Federal 3-29H | Three Forks Resources LLC | Niobrara | Oct 3, 2006 | 7,755 | 0 | 0 |
| Federal W-50085 20-1 | Krejci Harry L | Niobrara | Apr 24, 1979 | — | — | — |
| Krejci 1 | Dugger William L Jr | Niobrara | Jun 25, 1975 | — | — | — |
| Federal 34-20 | Arrowhead Exploration Co | Niobrara | Feb 3, 1964 | — | — | — |
| Unit 1 | Krejci Harry L | Niobrara | Jul 27, 1962 | — | 58 | 0 |
| Olive Johnson 1 | Union Oil Co of California | Niobrara | Jun 12, 1961 | — | — | — |
| Fed 046950-B 1 | Union Oil Co of California | Niobrara | Nov 6, 1960 | — | — | — |
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/f31fbffb7f3, documented in the API reference.