WELL · 42-489-00230 · DISTRICT 4
Willamar West Unit #23
Willacy County · Willamar West field · Vertical
Willamar West Unit #23 (API 42-489-00230) is a well in Willacy County operated by Citation Oil & Gas Corp., completed August 12, 1985.
The RRC has issued 2 drilling permits between 1988 and 1991, permitted to 7,970 ft.
Completion filings report 6 formation tops, including Marg Frio 1, Marg Frio1, Marg Frio 2, Marg Frio2.
Its 2 leases have reported 271K barrels of oil and 172K mcf of gas since January 1993, last reporting in July 2026. The leases carry 5 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 27, 2026
- Permits on file
- 866
- Phone
- (281) 891-1000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Citation Oil & Gas Corp. |
| Production reports | Citation Oil & Gas Corp.through Apr 2026 |
| Latest permit | Citation Oil & Gas Corp.Jun 10, 1991 |
- 7,970
- total depth, ft
- 2
- permits on file
- Jun 10, 1991
- last permit issued
- Aug 12, 1985
- completed
- 271K
- cumulative oil, bbl
- 172K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 12, 1985
- Shut in
- —
- Plugged
- —
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the 2 leases this well is completed on; they carry 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Williamar West Miocene Unit O-4-10056 | Willamar, West (Miocene 5850) | Citation Oil & Gas Corp. | 5 | 271K | 172K | Jan 1993 – Jul 2026 |
| — O-4-11581 | — | — | 0 | 0 | 0 | — |
Oil, barrels lease total
Last 12 months 2,952 · prior 12 3,474(-15%)
Gas, mcf lease total
Last 12 months 507 · prior 12 1,398(-64%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Citation Oil & Gas Corp.Jan 1993 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 388644-99 | Recompletion | Citation Oil & Gas Corp. | Jun 5, 1991 | Jun 10, 1991 | Jun 11, 1991 | 7,970 |
| 351626-99 | Recompletion | Amoco Production Company | Sep 26, 1988 | Sep 27, 1988 | — | 7,970 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-4-10056 | — | — | — | — |
| — | — O-4-11581 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 10 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Marg Frio 1 | 7,780 | -7,770 |
| Marg FRIO1 | 7,780 | -7,770 |
| Marg Frio 2 | 7,865 | -7,855 |
| Marg FRIO2 | 7,865 | -7,855 |
| Marg Frio 3 | 7,920 | -7,910 |
| Marg Frio 4 | 7,960 | -7,950 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,860 | 5,870 | Perforated |
| 6,130 | 6,150 | Perforated |
| 7,858 | 7,870 | Perforated |
| 7,902 | 7,910 | Perforated |
| 7,937 | 7,962 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,613 | — | 800 S |
| 5.5 | 7,969 | — | 750 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Sep 27, 1991 | Aug 26, 1991 | Yes |
| 00 | Sep 5, 1991 | Feb 28, 1989 | — |
| 00 | May 24, 1989 | Feb 28, 1989 | — |
| 00 | Mar 9, 1989 | — | — |
| 00 | Feb 3, 1986 | Jan 16, 1986 | — |
| 00 | Jan 12, 1984 | — | — |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-489-00230 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-489-00230 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 0
- bbl, all reported
- —
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000004734 | UIC Permit | Canceled Feb 5, 1987 | 0 | 0 | 0–0 |
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/48900230, documented in the API reference.