FIELDS · TEXAS · FIELD 36353400
Grand Old Oplin (Gray)
Field · District 7B · Callahan County and 1 more
Grand Old Oplin (Gray) is an RRC field with 33 leases on file reported by 40 operators, mostly in Callahan County.
In the 12 months reported through August 2026 it produced 12,292 barrels of oil, down 12% on the year before, from 4 leases reporting volume.
Windham Resources holds the most, 3 leases and 241,777 barrels of oil lifetime.
Lifetime, the field has reported 772,676 barrels of oil and 1.2 million mcf of gas, across 32 oil and 1 gas leases.
- 33
- leases on file · 32 oil, 1 gas
- 4
- leases reporting volume
- 40
- operators, all time
- 9
- active wellbores of 96 · 3 operators today
- 12,292
- bbl oil, 12 months through Aug 2026 · −12%
- 32,573
- Mcf gas, same 12 months · −22%
- 772,676
- bbl oil, lifetime · 1.2M Mcf gas
Every well completed in it, searchable →
Reported production by month
12 months through Aug 2026 12,292 · prior 12 13,900(-12%)
Grand Old Oplin (Gray): Oil by month.
Operators
BY LIFETIME OIL ON THEIR LEASES · TOP 19
| Operator | Leases | Oil, bbl | Gas, Mcf | Last reported |
|---|---|---|---|---|
| Windham Resources | 3 | 242K | 97.1K | May 2005 |
| 3 S Production, Inc. | 2 | 191K | 309K | Aug 2026 |
| Chisholm Operating, Inc. | 2 | 167K | 400K | Aug 2026 |
| Augusta Oil & Gas Inc | 1 | 35K | 46K | May 2011 |
| Creston Petroleum Corp. | 1 | 30.3K | 40.3K | Feb 2012 |
| Encon Services, Inc. | 2 | 23.9K | 87.8K | Dec 2009 |
| L.C.S. Production Company | 3 | 19.3K | 47.3K | Apr 2000 |
| Sun-Key Oil Co., Inc. | 1 | 19K | 72.4K | May 2013 |
| Momentum Operating Co., Inc. | 1 | 15.2K | 29.1K | Aug 2011 |
| Sands Energy LLC | 1 | 6.89K | 0 | Aug 2026 |
| Benson & Schoen Oil Co., Inc. | 3 | 6.55K | 20.5K | May 2004 |
| Window Operating Co., The | 2 | 4.19K | 33.2K | Jun 1995 |
| Mercury Exploration Co. | 2 | 3.98K | 14.1K | Nov 1997 |
| Vista Resources, Inc. (A) | 1 | 3.01K | 5.19K | Apr 1998 |
| Dallas Production, Inc. | 2 | 2.76K | 5.15K | Jul 1995 |
| R R Operation Inc | 1 | 1.9K | 205 | Apr 1996 |
| Conquistador Petroleum,inc. | 3 | 1.21K | 365 | Jan 1999 |
| Tracker Mineral | 1 | 28 | 3 | Jun 1993 |
| Smith, Joe T. Inc. | 1 | 0 | 0 | — |
Counties
- Callahan County → 30 leases
- Taylor County → 3 leases
Latest completions
BY COMPLETION DATE
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| Johnson #1 | Window Operating Co. The | Taylor | Jun 17, 2022 | — | — | — |
| Betcher #1 | Sands Energy LLC | Callahan | Mar 16, 2022 | — | — | — |
| Richardson #9 | Chisholm Operating Inc. | Taylor | Sep 25, 2020 | — | — | — |
| Richardson #6 | Chisholm Operating Inc. | Taylor | Aug 7, 2020 | — | — | — |
| Richardson #5 | Chisholm Operating Inc. | Taylor | Jun 30, 2020 | — | — | — |
| Richardson #4 | Chisholm Operating Inc. | Taylor | Jun 25, 2020 | — | — | — |
| Richardson #2 | Chisholm Operating Inc. | Taylor | Feb 27, 2020 | — | — | — |
| Richardson #1 | Chisholm Operating Inc. | Taylor | Sep 24, 2019 | — | — | — |
| Windham James T. #4C | 3 S Production Inc. | Callahan | Apr 1, 2008 | — | — | — |
| Anderson #6 | Chisholm Operating Inc. | Callahan | Feb 4, 2007 | — | — | — |
About this data
Field 36353400 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. Nothing is estimated.
Developers: this page as JSON is GET /v1/data/fields/tx/36353400, documented in the API reference.