FIELDS · TEXAS · FIELD 94475500
W. Z. B. (Grayburg)
Field · District 08 · Glasscock County · Grayburg in every state →
W. Z. B. (Grayburg) is an RRC field with 7 leases on file reported by 12 operators, in Glasscock County.
In the 12 months reported through August 2026 it produced 714 barrels of oil, down 57% on the year before, from 1 lease reporting volume.
Pioneer Natural Res. USA, Inc. holds the most, 3 leases and 35,995 barrels of oil lifetime.
Lifetime, the field has reported 81,550 barrels of oil and 13,445 mcf of gas.
- 7
- leases on file
- 1
- leases reporting volume
- 12
- operators, all time
- 2
- active wellbores of 10 · 1 operators today
- 714
- bbl oil, 12 months through Aug 2026 · −57%
- 0
- Mcf gas, same 12 months
- 81,550
- bbl oil, lifetime · 13,445 Mcf gas
Every well completed in it, searchable →
Reported production by month
12 months through Aug 2026 714 · prior 12 1,657(-57%)
W. Z. B. (Grayburg): Oil by month.
Operators
BY LIFETIME OIL ON THEIR LEASES · TOP 4
| Operator | Leases | Oil, bbl | Gas, Mcf | Last reported |
|---|---|---|---|---|
| Pioneer Natural Res. USA, Inc. | 3 | 36K | 2.22K | Jul 2010 |
| Alleder Inc. | 1 | 23.7K | 21 | Aug 2021 |
| Oxyrock Operating, LLC | 2 | 21.9K | 11.2K | Aug 2026 |
| W D W Operators, Inc. | 1 | 0 | 0 | — |
Counties
- Glasscock County → 7 leases
Latest completions
BY COMPLETION DATE
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| Cornwallis #1D | Oxyrock Operating LLC | Glasscock | Dec 12, 2023 | — | — | — |
| Butler Grayburg #2 | Oxyrock Operating LLC | Glasscock | Dec 20, 2015 | — | — | — |
| Butler Grayburg #1 | Oxyrock Operating LLC | Glasscock | Nov 20, 2002 | — | — | — |
| Weyman F #1 | Pioneer Natural Res. USA Inc. | Glasscock | Jul 22, 1992 | — | — | — |
| Weyman #1 | Pioneer Natural Res. USA Inc. | Glasscock | Feb 14, 1991 | — | — | — |
| Brunson Glen S. #1D | W D W Operators Inc. | Glasscock | Mar 27, 1986 | — | — | — |
| Gunn #1 | Alleder Inc. | Glasscock | Oct 25, 1985 | — | — | — |
| Zant -11- #5 | Pioneer Natural Res. USA Inc. | Glasscock | Sep 1, 1974 | — | — | — |
| Zant -11- #2X | Pioneer Natural Res. USA Inc. | Glasscock | Jun 14, 1974 | — | — | — |
About this data
Field 94475500 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, Aug 2026. Oil includes condensate from gas leases and gas includes casinghead gas from oil leases, as the RRC totals them. Counties from the wells completed on each lease. Completions are the wellbores the RRC schedule ties to the field. The formation, Grayburg, is read from the field's name. Nothing is estimated.
Developers: this page as JSON is GET /v1/data/fields/tx/94475500, documented in the API reference.