FIELDS · WYOMING · FIELD f4a6c920621
Rock River
Field · Carbon County and 1 more
- 53
- active completions of 208 · 1 operators today
- 21,842
- bbl oil, 12 months through Aug 2026 · −7%
- 51,068
- Mcf gas, same 12 months · −2%
- 4.0M
- bbl oil since the record begins, Jan 1978 · 3.5M Mcf gas
Every well completed in it, searchable → · Median top perforation 3,067 ft
Reported production by month
12 months through Aug 2026 21,842 · prior 12 23,480(-7%)
Rock River: Oil by month.
Operators
| Operator | Active | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|
| Rock River Operating Inc | 53 | 21,842 | 51,068 |
| Petcon Associates Ltd | 0 | 0 | 0 |
| Marathon Oil Company | 0 | 0 | 0 |
| Banner Oil Co Inc | 0 | — | — |
| Sharples Phillip T Trust | 0 | — | — |
| Luff Exploration | 0 | — | — |
Counties
- Carbon County53 active of 208
Largest completions
OIL, THEN GAS · 12 MONTHS THROUGH AUG 2026
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| Harrison Cooper 19-2 | Rock River Operating Inc | Carbon | Nov 3, 1958 | — | 1,786 | 1,166 |
| Diamond Cattle 27 3-27 | Rock River Operating Inc | Carbon | — | — | 1,774 | 1,154 |
| Trapshooter 1-34 | Rock River Operating Inc | Carbon | — | — | 1,653 | 1,074 |
| Harrison Cooper W5-11 | Rock River Operating Inc | Carbon | Aug 13, 1972 | — | 1,338 | 858 |
| Harrison Cooper 18-35 | Rock River Operating Inc | Carbon | — | — | 1,258 | 807 |
| Unit Alva Dixon 8-34 | Rock River Operating Inc | Carbon | — | — | 1,146 | 744 |
| Harrison Cooper 35 S1-35 | Rock River Operating Inc | Carbon | — | — | 1,043 | 676 |
| Diamond Cattle 27 4-27 | Rock River Operating Inc | Carbon | — | — | 993 | 641 |
| State 34-5 | Rock River Operating Inc | Carbon | — | — | 829 | 539 |
| Harrison Cooper E4-11 | Rock River Operating Inc | Carbon | Jul 24, 1924 | — | 745 | 497 |
| Harrison Cooper W1-11 | Rock River Operating Inc | Carbon | May 3, 1938 | — | 742 | 483 |
| State 34-14 | Rock River Operating Inc | Carbon | — | — | 678 | 422 |
| Trapshooter 3-34 3 | Rock River Operating Inc | Carbon | Jun 16, 1959 | — | 676 | 440 |
| Harrison Cooper B 4-27 | Rock River Operating Inc | Carbon | — | — | 673 | 438 |
| State 13-34 | Rock River Operating Inc | Carbon | May 19, 1941 | — | 651 | 397 |
Latest completions
BY COMPLETION DATE
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| Diamond Cattle 27 27-2 | Rock River Operating Inc | Carbon | May 13, 2013 | 2,060 | 19 | 12 |
| Harrison Cooper B 2-27 | Rock River Operating Inc | Carbon | Jan 27, 1989 | — | 0 | 0 |
| Harrison Cooper 7-2 | Petcon Associates Ltd | Carbon | Dec 28, 1988 | — | 0 | 0 |
| Harrison Cooper 6-2 | Petcon Associates Ltd | Carbon | Dec 21, 1988 | — | 0 | 0 |
| Harrison Cooper 1-3 | Petcon Associates Ltd | Carbon | Dec 20, 1988 | — | 0 | 0 |
| Harrison Cooper 2-23 | Petcon Associates Ltd | Carbon | Dec 3, 1988 | — | 0 | 0 |
| Harrison Cooper 2-53 | Petcon Associates Ltd | Carbon | Nov 28, 1988 | — | 0 | 0 |
| Harrison Cooper 2-38 | Petcon Associates Ltd | Carbon | Nov 24, 1988 | — | 0 | 0 |
| Harrison Cooper 5-2 | Petcon Associates Ltd | Carbon | Oct 31, 1988 | — | 0 | 0 |
| Harrison Cooper 3-2 | Petcon Associates Ltd | Carbon | Jun 3, 1988 | — | 0 | 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/f4a6c920621, documented in the API reference.