FIELDS · TEXAS · FIELD 97498585
Willamar, West (Miocene 5850)
Field · District 04 · Willacy County · Miocene 5850 in every state →
Willamar, West (Miocene 5850) is an RRC field with 3 leases on file reported by 9 operators, in Willacy County.
In the 12 months reported through August 2026 it produced 2,981 barrels of oil, down 3% on the year before, from 1 lease reporting volume.
Citation Oil & Gas Corp. holds the most, 1 lease and 271,823 barrels of oil lifetime.
Lifetime, the field has reported 299,539 barrels of oil and 196,066 mcf of gas.
- 3
- leases on file
- 1
- leases reporting volume
- 9
- operators, all time
- 2
- active wellbores of 10 · 1 operators today
- 2,981
- bbl oil, 12 months through Aug 2026 · −3%
- 996
- Mcf gas, same 12 months · +21%
- 299,539
- bbl oil, lifetime · 196,066 Mcf gas
Every well completed in it, searchable →
Reported production by month
12 months through Aug 2026 2,981 · prior 12 3,066(-3%)
Willamar, West (Miocene 5850): Oil by month.
Operators
BY LIFETIME OIL ON THEIR LEASES · TOP 3
| Operator | Leases | Oil, bbl | Gas, Mcf | Last reported |
|---|---|---|---|---|
| Citation Oil & Gas Corp. | 1 | 272K | 173K | Aug 2026 |
| Chestnut Explor. and Prod., Inc. | 1 | 27.7K | 23.3K | Jul 2009 |
| Exxon Corp. | 1 | 0 | 0 | — |
Counties
- Willacy County → 3 leases
Latest completions
BY COMPLETION DATE
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| Williamar West Miocene Unit #m 5 | Citation Oil & Gas Corp. | Willacy | Sep 1, 2003 | — | — | — |
| Sauz Ranch Mulatos Pasture #166 | Chestnut Explor. and Prod. Inc. | Willacy | Feb 14, 1997 | — | — | — |
| Williamar West Miocene Unit #34 | Citation Oil & Gas Corp. | Willacy | Oct 4, 1995 | — | — | — |
| Sauz Ranch Mulatos Pasture #167 | Chestnut Explor. and Prod. Inc. | Willacy | Nov 1, 1993 | — | — | — |
| Williamar West Miocene Unit #m 23 | Citation Oil & Gas Corp. | Willacy | Aug 21, 1991 | — | — | — |
| Sauz Ranch Mulatos Pasture #165 | Exxon Corp. | Willacy | Apr 27, 1988 | — | — | — |
| Williamar West Miocene Unit #m 18 | Citation Oil & Gas Corp. | Willacy | Jan 7, 1988 | — | — | — |
| Sauz Ranch Mulatos Pasture #184 | Exxon Corp. | Willacy | Mar 15, 1985 | — | — | — |
| Sauz Ranch Mulatos Pasture #182 F | Cimarex Energy Co. of Colorado | Willacy | Nov 15, 1984 | — | — | — |
| Williamar West Miocene Unit #m 1 | Citation Oil & Gas Corp. | Willacy | May 12, 1979 | — | — | — |
About this data
Field 97498585 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, Miocene 5850, is read from the field's name. Nothing is estimated.
Developers: this page as JSON is GET /v1/data/fields/tx/97498585, documented in the API reference.