TEXAS · WELLS · ZAPATA COUNTY · ALONZO LEASE · API 42-505-34904 · DISTRICT 04
Alonzo #1
Zapata County · Haynes (Middle Wilcox Cons.) field · Temp Abandoned · Vertical
Alonzo #1 (API 42-505-34904) is a well in Zapata County operated by Hilcorp Energy Company, completed March 5, 2004 and listed as temp abandoned on the RRC schedule, shut in June 1, 2020.
The RRC has issued one drilling permit, issued January 15, 2004, permitted to 13,100 ft.
It was permitted by Denali Oil & Gas Management, LLC and has since transferred to Hilcorp Energy Company on the wellbore schedule.
Its lease has reported 4 barrels of oil and 48.4K mcf of gas since March 2004, with no volume in the three years through April 2026.
Operator of record
Permitted by Denali Oil & Gas Management, LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Mar 27, 2026
- Permits on file
- 3,458
- Phone
- (713) 209-2400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Hilcorp Energy Company |
| Production reports | Hilcorp Energy Companythrough May 2020 |
| Latest permit | Denali Oil & Gas Management, LLCJan 15, 2004 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 13,100
- total depth, ft
- 1
- permits on file
- Jan 15, 2004
- last permit issued
- Mar 5, 2004
- completed
- 4
- cumulative oil, bbl
- 48.4K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2004 THROUGH May 2020
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 5, 2004
- Shut in
- Jun 1, 2020
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Alonzo G-4-200408 | Haynes (Middle Wilcox Cons.) | Hilcorp Energy Company | 1 | 4 | 48.4K | Mar 2004 – May 2020 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Denali Oil & Gas Management, LLCMar 2004 → Apr 2005
- 2Dynamic Production, Inc.May 2005 → Aug 2015
- 3Hilcorp Energy CompanySep 2015 → May 2020
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 540802-99 | Drill | Denali Oil & Gas Management, LLC | Jan 15, 2004 | Jan 15, 2004 | Jan 23, 2004 | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 5, 2004 | Alonzo G-4-200408 | Haynes (Middle Wilcox Cons.) | Hilcorp Energy Company | Temp Abandoned · shut in Jun 1, 2020 | 13,100 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 11,441 | 11,474 | Perforated |
| 12,916 | 12,924 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,125 | 14.75 | 820 S |
| 7.625 | 8,640 | 9.875 | 835 S |
| 2.875 | 13,000 | 6.75 | 920 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Apr 28, 2004 | Apr 2, 2004 | Yes |
| 00 | Apr 14, 2004 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Oct 11, 2007. Density, Neutron, Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| Combination: Resistivity/Neutron Density PorosityARRAY INDUCTION SPECTRAL DENSITY DUAL SPACED NEUTRON | TIFF | 8,614 to 13,044 | Oct 11, 2007run Feb 10, 2004 | — |
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 42-505-34904 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-34904 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/50534904, documented in the API reference.