FIELDS · 49129594 · DISTRICT 08
Keystone (San Andres)
Winkler 48
Keystone (San Andres) is an RRC field with 49 leases on file reported by 44 operators, in Winkler County.
In the 12 months reported through April 2026 it produced 10,856 barrels of oil, down 17% on the year before, from 5 leases reporting volume.
Gruy Petro Management Co holds the most, 21 leases and 859,078 barrels lifetime.
Lifetime, the field has reported 2.4 million barrels of oil and 4.9 million mcf of gas.
- 49
- leases on file
- 44
- operators, all time
- 10.9K
- bbl oil, last 12 reported -17%
- 1.11K
- mcf gas, last 12 reported -63%
- 5
- leases reporting volume
- 2.43M
- bbl oil, lifetime · 4.9M mcf
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Oil by month
TEN YEARS · EVERY LEASE IN THE FIELD
Barrels reported on Form PR across the field's leases. The latest months are revised upward as late reports arrive.
Last 12 months 10,856 · prior 12 13,116(-17%)
Gas by month
TEN YEARS · EVERY LEASE IN THE FIELD
Gas-well gas plus casinghead, mcf, across the field's leases. The latest months are revised upward as late reports arrive.
Last 12 months 1,111 · prior 12 2,993(-63%)
Leases reporting volume
How many of the field's leases reported any oil or gas each month: the field's active footprint.
Latest month 5 · a year earlier 5(+0%)
Operators
BY LIFETIME OIL ON THEIR LEASES · TOP 14
| Operator | Leases | Oil, bbl | Gas, mcf | Last reported |
|---|---|---|---|---|
| Gruy Petro Management Co | 21 | 859K | 1.9M | Apr 2002 |
| Hilcorp Engy Co | 5 | 610K | 1.25M | Jul 2026 |
| Formentera Operations LLC | 6 | 586K | 1.25M | Jul 2026 |
| Paladin Petro III, L.L.C | 4 | 151K | 70.8K | Jul 2026 |
| Teke Production LLC | 1 | 147K | 263K | Jul 2026 |
| Prize Oper Co | 1 | 20.1K | 39.6K | Feb 2002 |
| Cimarex Engy Co. of Colorado | 1 | 17.3K | 25.6K | Mar 2008 |
| Pioneer Res Producing, L.P | 3 | 16.8K | 28.5K | Mar 1999 |
| Fulfer Oil and Cattle Co. | 1 | 14.5K | 61.4K | Jul 2026 |
| Tilted J Oil Company | 1 | 2.41K | 2.53K | Aug 2004 |
| Hallwood Petro, Inc | 1 | 101 | 8 | Oct 1997 |
| BCP Res, LLC | 1 | 94 | 2.05K | Jul 2026 |
| Boyd & McWilliams Oper, LLC | 2 | 0 | 0 | Jul 2026 |
| XTO Engy Inc | 1 | 0 | 0 | Nov 2024 |
Counties
- Winkler County → 48 leases
About this data
Field 49129594 from RRC PDQ lease reports: lifetime totals and lease and operator counts from the field summary; the monthly series summed nightly from every lease report naming the field, cut at the statewide reported-through month. Counties from the wells completed on each lease.
New to these records? how production is reported
Developers: this page as JSON is GET /v1/data/fields/tx/49129594, documented in the API reference.