FIELDS · TEXAS · FIELD 97491001
Willamar
Field · District 04 · Willacy County
Willamar is an RRC field with 10 leases on file reported by 14 operators, in Willacy County.
In the 12 months reported through April 2026 it produced 35,170 barrels of oil, down 15% on the year before, from 4 leases reporting volume.
Citation Oil & Gas Corp. holds the most, 6 leases and 2.5 million barrels lifetime.
Lifetime, the field has reported 3.2 million barrels of oil and 2.6 million mcf of gas.
- 10
- leases on file
- 4
- leases reporting volume
- 14
- operators, all time
- 4
- active wellbores of 54 · 1 operators today
- 35,170
- bbl oil, 12 months through Apr 2026 · −15%
- 2,534
- Mcf gas, same 12 months · −47%
- 3.2M
- bbl oil, lifetime · 2.6M Mcf gas
Every well completed in it, searchable →
Reported production by month
Last 12 months 35,170 · prior 12 41,419(-15%)
Willamar: Oil by month.
Operators
BY LIFETIME OIL ON THEIR LEASES · TOP 5
| Operator | Leases | Oil, bbl | Gas, Mcf | Last reported |
|---|---|---|---|---|
| Citation Oil & Gas Corp. | 6 | 2.55M | 2.3M | Jul 2026 |
| Chestnut Explor. and Prod., Inc. | 1 | 524K | 310K | Jul 2026 |
| Shoco Production LLC | 1 | 90.9K | 0 | Jul 2026 |
| API Operating Co. | 1 | 38 | 110 | Jul 2026 |
| Phoenix Oil Field Equipment Co. | 1 | 0 | 0 | Jul 2026 |
Counties
- Willacy County → 7 leases
Latest completions
BY COMPLETION DATE
| Well | Operator | County | Completed | Top perf, ft | Oil, 12 mo | Gas, 12 mo |
|---|---|---|---|---|---|---|
| Johnson Elmer G. Etal #2 | Citation Oil & Gas Corp. | Willacy | Dec 12, 2025 | — | 0 | 0 |
| Willamar East Unit #3 | Citation Oil & Gas Corp. | Willacy | Aug 16, 2012 | — | 0 | 0 |
| Bucy #191 | Citation Oil & Gas Corp. | Willacy | Apr 15, 2011 | — | 0 | 0 |
| Willamar East Unit #1 D | Citation Oil & Gas Corp. | Willacy | Mar 18, 2005 | — | 0 | 0 |
| Sauz Ranch Mulatos Pasture #95 | Chestnut Explor. and Prod. Inc. | Willacy | Jul 13, 1998 | — | 0 | 0 |
| Willamar East Unit #27 | Citation Oil & Gas Corp. | Willacy | Jul 29, 1992 | — | 0 | 0 |
| Willamar East Unit #29 | Citation Oil & Gas Corp. | Willacy | Aug 7, 1987 | — | 0 | 0 |
| Sauz Ranch Mulatos Pasture #47 | Chestnut Explor. and Prod. Inc. | Willacy | Jul 23, 1985 | — | 0 | 0 |
| Sauz Ranch Mulatos Pasture #78 | Chestnut Explor. and Prod. Inc. | Willacy | Mar 12, 1984 | — | 0 | 0 |
| Sauz Ranch Mulatos Pasture #164 | Chestnut Explor. and Prod. Inc. | Willacy | Oct 16, 1981 | — | 0 | 0 |
About this data
Field 97491001 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/97491001, documented in the API reference.