TEXAS · WELLS · ZAPATA COUNTY · API 42-505-35049 · DISTRICT 04
Bernardo Bustamante G. U. #4
Zapata County · Jennings (Wilcox Consolidated) field · Temp Abandoned · Vertical
Bernardo Bustamante G. U. #4 (API 42-505-35049) is a well in Zapata County operated by Killam Oil CO. Ltd., completed July 26, 2005 and listed as temp abandoned on the RRC schedule, shut in January 1, 2007.
The RRC has issued 2 drilling permits between 2004 and 2006, permitted to 11,680 ft.
Completion filings report 3 formation tops, including W-4, Halbouty, W-20.
Its 2 leases have reported 2.88K barrels of oil and 763K mcf of gas since October 2004, with no volume in the three years through April 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Laredo, TX
- P-5 status
- Active (A)
- P-5 last filed
- Apr 9, 2026
- Permits on file
- 837
- Phone
- (956) 724-7141
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Killam Oil Co. Ltd. |
| Production reports | Killam Oil Co., Ltd.through Jan 2007 |
| Latest permit | Killam Oil Co., Ltd.Feb 3, 2006 |
- 11,680
- total depth, ft
- 2
- permits on file
- Feb 3, 2006
- last permit issued
- Jul 26, 2005
- completed
- 2.88K
- cumulative oil, bbl
- 763K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2004 THROUGH Jan 2007
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 26, 2005
- Shut in
- Jan 1, 2007
- 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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Bernardo Bustamante G. U. G-4-216033 | Jennings (Wilcox Consolidated) | Killam Oil Co., Ltd. | 1 | 2.87K | 539K | Jul 2005 – Jan 2007 |
| Bernardo Bustamante G. U. G-4-207567 | Haynes (Middle Wilcox Cons.) | Killam Oil Co., Ltd. | 1 | 6 | 223K | Oct 2004 – Jun 2005 |
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.
- 1Killam Oil Co., Ltd.Oct 2004 → Jan 2007
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 613267-99 | Recompletion | Killam Oil Co., Ltd. | Jan 30, 2006 | Feb 3, 2006 | Jun 2, 2005 | 8,700 |
| 548334-99 | Drill | Killam Oil Co., Ltd. | Jul 16, 2004 | Jul 16, 2004 | Jul 27, 2004 | 12,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 26, 2005 | Bernardo Bustamante G. U. G-4-216033 | Jennings (Wilcox Consolidated) | Killam Oil Co. Ltd. | Temp Abandoned · shut in Jan 1, 2007 | 11,680 |
| Oct 20, 2004 | Bernardo Bustamante G. U. G-4-207567 | Haynes (Middle Wilcox Cons.) | Killam Oil Co. Ltd. | Partial Plug · shut in Jun 1, 2005 | 11,680 |
Formation tops
As filed on W-2/G-1. Subsea from 467 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| W-4 | 7,620 | -7,153 |
| Halbouty | 7,880 | -7,413 |
| W-20 | 8,840 | -8,373 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,605 | 8,614 | Perforated |
| 11,374 | 11,400 | Perforated |
| 11,452 | 11,466 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,008 | 12.25 | 390 S |
| 7 | 7,510 | 8.75 | 360 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 | Sep 20, 2006 | Jan 23, 2006 | Yes |
| 00 | May 25, 2006 | — | — |
| 00 | Jun 21, 2005 | Jan 20, 2005 | Yes |
| 00 | Apr 14, 2005 | — | — |
Well logs
2 logs loaded from the RRC's log index, the latest received Sep 9, 2008. Resistivity, Sonic. 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 |
|---|---|---|---|---|
| RESISTIVITYSpans W-20 | TIFF | 10,402 to 11,381 | Jul 28, 2008run Sep 17, 2004 | 0.91 |
| ACOUSTIC POROSITYSpans W-4, Halbouty, W-20 | TIFF | 7,528 to 10,404 | Sep 9, 2008run Sep 4, 2004 | 0.26 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-505-35049 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-35049 → 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/50535049, documented in the API reference.