FIELDS · TEXAS · FIELD 49129198
Keystone (Devonian)
Field · District 08 · Winkler County · Devonian in every state →
Keystone (Devonian) is an RRC field with 21 leases on file reported by 25 operators, in Winkler County.
No volume has been reported since July 2026.
Fulfer Oil and Cattle Co. holds the most, 1 leases and 68,291 barrels lifetime.
Lifetime, the field has reported 103,617 barrels of oil and 6.0 million mcf of gas, across 10 oil and 4 gas leases.
- 21
- leases on file · 10 oil, 4 gas
- 0
- leases reporting volume
- 25
- operators, all time
- 0
- active wellbores of 55 · 0 operators today
- 0
- bbl oil, 12 months through Apr 2026
- 0
- Mcf gas, same 12 months
- 103,617
- bbl oil, lifetime · 6.0M Mcf gas
Every well completed in it, searchable →
Reported production by month
Last 12 months 0 · prior 12 0
Keystone (Devonian): Oil by month.
Operators
BY LIFETIME OIL ON THEIR LEASES · TOP 10
| Operator | Leases | Oil, bbl | Gas, Mcf | Last reported |
|---|---|---|---|---|
| Fulfer Oil and Cattle Co. | 1 | 68.3K | 318K | Jul 2019 |
| Endeavor Energy Resources L.P. | 1 | 22.6K | 129K | Aug 2019 |
| Blackbeard Operating, LLC | 1 | 7.95K | 15.3K | Feb 2019 |
| Bopco, L.P. | 2 | 2.93K | 11.9K | Mar 2014 |
| Mineral Technologies, Inc. | 1 | 1.42K | 697 | Jul 2026 |
| Bass Enterprises Production Co. | 3 | 451 | 133K | Mar 2000 |
| Southwest Royalties, Inc. | 2 | 0 | 453K | May 2015 |
| Bepco, L.P. | 1 | 0 | 0 | Jan 2007 |
| Pennzoil Exploration & Prod. Co. | 1 | 0 | 0 | Jun 1998 |
| Arch Petroleum Inc. | 1 | 0 | 0 | Mar 2008 |
Counties
- Winkler County → 8 leases
Latest completions
BY COMPLETION DATE
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| Keystone Cattle Co. #106 | Mineral Technologies Inc. | Winkler | Dec 10, 2012 | — | 0 | 0 |
| Waddell #201W | Blackbeard Operating LLC | Winkler | Jul 6, 2010 | — | 0 | 0 |
| Keystone Cattle Co. #160 | Bopco L.P. | Winkler | Mar 3, 2000 | — | 0 | 0 |
| M. J. Bashara #47 D | Bass Enterprises Production Co. | Winkler | Mar 1, 1998 | — | 0 | 0 |
| Waddell #112 | Blackbeard Operating LLC | Winkler | Dec 26, 1989 | — | 0 | 0 |
| Keystone Cattle Co. #207W | Pennzoil Exploration & Prod. Co. | Winkler | Dec 18, 1968 | — | 0 | 0 |
| Keystone Cattle Co. #3 | Byrd Oil Corporation | Winkler | Aug 13, 1953 | — | 0 | 0 |
| Keystone Cattle Co. #159 | Pennzoil Exploration & Prod. Co. | Winkler | Sep 24, 1951 | — | 0 | 0 |
| Talvez #7 | Southwest Royalties Inc. | Winkler | Jun 29, 1951 | — | 0 | 0 |
| 14 | Continental Oil Company | Winkler | Jun 1, 1950 | — | 0 | 0 |
About this data
Field 49129198 from RRC PDQ lease reports: lifetime totals and lease and operator counts from the field summary; the monthly series summed from every lease report naming the field, cut at the statewide reported-through month, Apr 2026. Counties from the wells completed on each lease. Completions are the wellbores the RRC schedule ties to the field. The formation, Devonian, is read from the field's name. Nothing is estimated.
Developers: this page as JSON is GET /v1/data/fields/tx/49129198, documented in the API reference.