FIELDS · WYOMING · FIELD fbc611d3e3c
Marianne
Field · Sweetwater County
- 9
- active completions of 33 · 2 operators today
- 33
- bbl oil, 12 months through Aug 2026
- 147,386
- Mcf gas, same 12 months · −18%
- 11,287
- bbl oil since Sep 1980 · 21.7M Mcf gas
Every well completed in it, searchable → · Median top perforation 3,824 ft
Reported production by month
12 months through Aug 2026 33 · prior 12 0
Marianne: Oil by month.
Operators
| Operator | Active | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|
| Black Thunder Oil LLC | 1 | 33 | 293 |
| Chaco Energy Company | 8 | 0 | 147,093 |
| WyoCompAPIRes.CombinedNumber | 0 | 0 | 0 |
| Crowheart Energy LLC | 0 | 0 | 0 |
| Bayswater Exploration & Production LLC | 0 | 0 | 0 |
| Hawks Industries Inc | 0 | 0 | 0 |
| Conoco Inc | 0 | — | — |
| Daube Company The | 0 | — | — |
| Anadarko E&P Onshore LLC | 0 | — | — |
| Smokey Gap Ventures | 0 | — | — |
| True Oil LLC | 0 | — | — |
| National Energy Group Inc | 0 | — | — |
| Davis Oil Company | 0 | — | — |
| Petroleum Inc | 0 | — | — |
Counties
- Sweetwater County9 active of 33
Largest completions
OIL, THEN GAS · 12 MONTHS THROUGH AUG 2026
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| Horsethief Canyon KA 25-15 | Black Thunder Oil LLC | Sweetwater | — | — | 33 | 293 |
| Marianne 34-35 | Chaco Energy Company | Sweetwater | Sep 20, 2010 | 3,556 | 0 | 36,071 |
| Marianne State 21-36 | Chaco Energy Company | Sweetwater | May 18, 2006 | 3,795 | 0 | 25,204 |
| Fee 13-1 | Chaco Energy Company | Sweetwater | — | — | 0 | 21,213 |
| Anderson W-24135 12-1 | Chaco Energy Company | Sweetwater | Mar 4, 1981 | — | 0 | 18,840 |
| Uprc 13-3 | Chaco Energy Company | Sweetwater | Jun 18, 2000 | — | 0 | 17,097 |
| Bhi-Madex W-24136 24-2 | Chaco Energy Company | Sweetwater | Feb 7, 1980 | — | 0 | 11,955 |
| Madex W-22067 18-1 | Chaco Energy Company | Sweetwater | Feb 1, 1980 | — | 0 | 9,668 |
| Steve 14 | Chaco Energy Company | Sweetwater | Mar 12, 1980 | — | 0 | 7,045 |
Latest completions
BY COMPLETION DATE
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| Marianne 34-35 | Chaco Energy Company | Sweetwater | Sep 20, 2010 | 4,048 | 0 | 0 |
| Marianne 34-35 | Chaco Energy Company | Sweetwater | Sep 20, 2010 | 3,556 | 0 | 36,071 |
| Marianne Federal 6-14 | WyoCompAPIRes.CombinedNumber | Sweetwater | Sep 25, 2009 | — | 0 | 0 |
| Marianne State 13-36 | Chaco Energy Company | Sweetwater | Mar 26, 2007 | 3,616 | 0 | 0 |
| Marianne State 21-36 | Chaco Energy Company | Sweetwater | May 18, 2006 | 3,795 | 0 | 25,204 |
| Federal 26-2 | Chaco Energy Company | Sweetwater | Oct 11, 2002 | 3,852 | 0 | 0 |
| Uprc 13-3 | Chaco Energy Company | Sweetwater | Jun 18, 2000 | — | 0 | 17,097 |
| Horsethief Canyon KA 25-15 | Black Thunder Oil LLC | Sweetwater | Nov 2, 1999 | — | — | — |
| Horsethief Canyon 30-12 | Bayswater Exploration & Production LLC | Sweetwater | Apr 11, 1999 | 5,820 | 0 | 0 |
| Champlin 25-1 | National Energy Group Inc | Sweetwater | Nov 3, 1995 | — | — | — |
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/fbc611d3e3c, documented in the API reference.