FIELDS · TEXAS · FIELD 20321001
Cook Ranch
Field · District 7B · Shackelford County and 1 more
Cook Ranch is an RRC field with 77 leases on file reported by 29 operators, mostly in Shackelford County.
In the 12 months reported through April 2026 it produced 40,265 barrels of oil, down 8% on the year before, from 22 leases reporting volume.
Stasney Well Service, LLC holds the most, 40 leases and 1.2 million barrels lifetime.
Lifetime, the field has reported 2.4 million barrels of oil and 266,289 mcf of gas, across 68 oil and 9 gas leases.
- 77
- leases on file · 68 oil, 9 gas
- 22
- leases reporting volume
- 29
- operators, all time
- 166
- active wellbores of 755 · 6 operators today
- 40,265
- bbl oil, 12 months through Apr 2026 · −8%
- 0
- Mcf gas, same 12 months
- 2.4M
- bbl oil, lifetime · 266,289 Mcf gas
Every well completed in it, searchable →
Reported production by month
Last 12 months 40,265 · prior 12 43,625(-8%)
Cook Ranch: Oil by month.
Operators
BY LIFETIME OIL ON THEIR LEASES · TOP 13
| Operator | Leases | Oil, bbl | Gas, Mcf | Last reported |
|---|---|---|---|---|
| Stasney Well Service, LLC | 40 | 1.22M | 169K | Jul 2026 |
| DH Operating, Inc. | 5 | 791K | 70.9K | Jul 2026 |
| Tom-Tom Operating, LLC | 2 | 209K | 118 | Jul 2026 |
| Subsea Operating Co. | 1 | 162K | 0 | Jul 2026 |
| CDJ Oil Company, LLC | 1 | 18.9K | 85 | Jul 2026 |
| Stasney, H. R. & Sons, Ltd. | 17 | 9.75K | 25.7K | Jan 2011 |
| Young, Marshall R., Oil Co. | 4 | 6.42K | 40 | Nov 1997 |
| JNS Production, LLC | 2 | 3.81K | 0 | Jul 2026 |
| Bluff Creek Petroleum, LLC | 1 | 3.78K | 0 | Jul 2026 |
| B P Operating Company | 1 | 1.04K | 21 | Nov 1997 |
| Schkade, Louis | 1 | 514 | 15 | Mar 2008 |
| Marjac Oil Company, Inc. | 1 | 156 | 12 | Dec 2001 |
| Sequoia Fossil Fuels, Inc. | 1 | 41 | 12 | Jul 2026 |
Counties
- Shackelford County → 72 leases
- Throckmorton County → 1 leases
Latest completions
BY COMPLETION DATE
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| Stasney 61 #116 | Stasney Well Service LLC | Shackelford | Oct 2, 2025 | — | 0 | 0 |
| Stasney 61 #112 | Stasney Well Service LLC | Shackelford | Sep 5, 2025 | — | 0 | 0 |
| Cook -B- Sec. 113 #20 | Stasney Well Service LLC | Shackelford | Aug 29, 2025 | — | 0 | 0 |
| Stasney Ranch 140 #14 | Stasney Well Service LLC | Shackelford | Jun 14, 2025 | — | 0 | 0 |
| Stasney 61 #109 | Stasney Well Service LLC | Shackelford | May 29, 2025 | — | 0 | 0 |
| Stasney Ranch 62/63 #37 | Stasney Well Service LLC | Shackelford | May 21, 2025 | — | 0 | 0 |
| Cook Ranch 85S #101 | Stasney Well Service LLC | Shackelford | May 1, 2025 | — | 0 | 0 |
| Stasney 61 #107 | Stasney Well Service LLC | Shackelford | Jan 13, 2025 | — | 0 | 0 |
| Stasney 61 #106 | Stasney Well Service LLC | Shackelford | Jan 6, 2025 | — | 0 | 0 |
| Stasney Ranch 62/63 #35 | Stasney Well Service LLC | Shackelford | Sep 9, 2024 | — | 0 | 0 |
About this data
Field 20321001 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. Nothing is estimated.
Developers: this page as JSON is GET /v1/data/fields/tx/20321001, documented in the API reference.