FIELDS · WYOMING · FIELD fe71bf18b9c
Big Muddy
Field · Converse County and 1 more
- 16
- active completions of 642 · 3 operators today
- 9,968
- bbl oil, 12 months through Aug 2026 · −33%
- 0
- Mcf gas, same 12 months
- 1.8M
- bbl oil since the record begins, Jan 1978 · 82,327 Mcf gas
Every well completed in it, searchable → · Median top perforation 3,275 ft
Reported production by month
12 months through Aug 2026 9,968 · prior 12 14,916(-33%)
Big Muddy: Oil by month.
Operators
| Operator | Active | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|
| New Horizon Resources LLC | 4 | 5,863 | 0 |
| Vortex Petroleum Inc | 10 | 3,449 | 0 |
| Big Muddy Operating LLC | 2 | 656 | 0 |
| Westport Oil & Gas Company LP | 0 | 0 | 0 |
| Conoco Inc | 0 | 0 | 0 |
| Petroleum Inc | 0 | 0 | 0 |
| Midwest Refining Company | 0 | — | — |
| Wyoming Oil & Development Co | 0 | — | — |
| Hondo Oil & Gas | 0 | — | — |
| Winkler L W & Son | 0 | — | — |
| Wheatley Thomas F | 0 | — | — |
| Valentine Pipe & Equipment | 0 | — | — |
| BP America Production Company | 0 | — | — |
| Canada Southern Oil | 0 | — | — |
| Texas American Oil Corporation | 0 | — | — |
Counties
- Converse County16 active of 641
- Natrona County0 active of 1
Largest completions
OIL, THEN GAS · 12 MONTHS THROUGH AUG 2026
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| Elkhorn 14 | New Horizon Resources LLC | Converse | Nov 27, 1945 | — | 4,040 | 0 |
| State Big Muddy 20 | Vortex Petroleum Inc | Converse | Jan 18, 1953 | — | 1,028 | 0 |
| Kinney St 0-1821 38 | New Horizon Resources LLC | Converse | Apr 25, 1970 | — | 885 | 0 |
| Elkhorn a St 015658A 15 | New Horizon Resources LLC | Converse | Jan 27, 1960 | — | 767 | 0 |
| State 19 | Vortex Petroleum Inc | Converse | Jun 6, 1952 | 3,268 | 685 | 0 |
| State 16-1D | Vortex Petroleum Inc | Converse | Sep 18, 1950 | — | 532 | 0 |
| Whiteside 90 | Big Muddy Operating LLC | Converse | Jan 30, 2012 | — | 481 | 0 |
| Blackbird Old 7 | Big Muddy Operating LLC | Converse | Sep 22, 1917 | — | 175 | 0 |
| State 0-12526 21 | Vortex Petroleum Inc | Converse | Mar 8, 1952 | — | 172 | 0 |
| State 25 | Vortex Petroleum Inc | Converse | Jul 18, 1958 | — | 172 | 0 |
| State 21-4 | Vortex Petroleum Inc | Converse | Sep 28, 1965 | — | 172 | 0 |
| Well 30 | Vortex Petroleum Inc | Converse | Aug 12, 1953 | 3,282 | 172 | 0 |
| State 33 | Vortex Petroleum Inc | Converse | Oct 3, 1960 | — | 172 | 0 |
| State 0-20200 3 | Vortex Petroleum Inc | Converse | Oct 8, 1964 | — | 172 | 0 |
| Big Muddy SO Unit 10 | Vortex Petroleum Inc | Converse | Sep 18, 1943 | 3,262 | 172 | 0 |
Latest completions
BY COMPLETION DATE
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| Whiteside 90 | Big Muddy Operating LLC | Converse | Jan 30, 2012 | — | 481 | 0 |
| Whiteside St 0-1822 95 | Big Muddy Operating LLC | Converse | Nov 28, 2011 | — | 0 | 0 |
| State 21-4 | Vortex Petroleum Inc | Converse | Sep 27, 2006 | — | — | — |
| South Big Muddy 21-A | Vortex Petroleum Inc | Converse | Sep 27, 1999 | — | — | — |
| Stateland 10 0-1823 26 | Conoco Inc | Converse | Dec 10, 1984 | — | 0 | 0 |
| 101 R.B. Whiteside 101 | Conoco Inc | Converse | Nov 10, 1981 | — | — | — |
| Lockett-State 1 | Davis Oil Company | Converse | Feb 15, 1981 | — | — | — |
| West Whipple State 1 | Davis Oil Company | Converse | Jan 12, 1981 | — | — | — |
| Jones 3-10 Fee 32 | Conoco Inc | Converse | Nov 5, 1980 | — | — | — |
| 33 Jones 33 | Conoco Inc | Converse | Oct 27, 1980 | — | — | — |
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/fe71bf18b9c, documented in the API reference.