TEXAS · WELLS · WEBB COUNTY · RANCHO BLANCO LEASE · API 42-479-36352 · DISTRICT 04
Rancho Blanco #2
Webb County · Rancho Blanco (Lobo) field · Temp Abandoned · Vertical
Rancho Blanco #2 (API 42-479-36352) is a well in Webb County operated by Columbus Energy LLC, completed October 6, 1995 and listed as temp abandoned on the RRC schedule, shut in July 1, 2012.
The RRC has issued one drilling permit (amended once), issued August 10, 1995, permitted to 8,112 ft.
It was permitted by Sanchez-O'Brien Oil & Gas Corp. and has since transferred to Columbus Energy LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Carrizo, Wilcox, Lobo.
Its lease has reported 17.1K barrels of oil and 4.54M mcf of gas since October 1995, with no volume in the three years through April 2026.
Operator of record
Permitted by Sanchez-O'Brien Oil & Gas Corp.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 2, 2026
- Permits on file
- 51
- Phone
- (832) 432-8540
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Columbus Energy LLC |
| Production reports | Columbus Energy, LLCthrough Jun 2012 |
| Latest permit | Sanchez-O'Brien Oil & Gas Corp.Aug 10, 1995 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,112
- total depth, ft
- 2
- permits on file
- Aug 10, 1995
- last permit issued
- Oct 6, 1995
- completed
- 17.1K
- cumulative oil, bbl
- 4.54M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 1995 THROUGH Jun 2012
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 6, 1995
- Shut in
- Jul 1, 2012
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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 |
|---|---|---|---|---|---|---|
| Rancho Blanco G-4-155948 | Rancho Blanco (Lobo) | Columbus Energy, LLC | 1 | 17.1K | 4.54M | Oct 1995 – Jun 2012 |
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.
- 1Sanchez-O'Brien Oil & Gas Corp.Oct 1995 → Dec 1995
- 2Zachry Exploration, Inc.Jan 1996 → Nov 2009
- 3Zachry Exploration, Ltd.May 2002 → Jan 2009
- 4Zachry Exploration, LLCDec 2009 → Jul 2010
- 5Columbus Energy, LLCAug 2010 → Jun 2012
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 438770-98 | Drill | Sanchez-O'Brien Oil & Gas Corp. | Sep 13, 1995 | Aug 10, 1995 | Aug 17, 1995 | 9,100 |
| 438770-99 | Drill | Sanchez-O'Brien Oil & Gas Corp. | Aug 10, 1995 | Aug 10, 1995 | — | 9,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 6, 1995 | Rancho Blanco G-4-155948 | Rancho Blanco (Lobo) | Columbus Energy LLC | Temp Abandoned · shut in Jul 1, 2012 | 8,112 |
Formation tops
As filed on W-2/G-1. Subsea from 471 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,114 | 7,162 | Perforated |
| 7,286 | 7,384 | Perforated |
| 7,598 | 7,850 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,020 | 12.25 | 340 S |
| 7 | 6,075 | 8.5 | 300 S |
| 4.5 | 8,112 | 6.125 | 226 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 | Feb 7, 1996 | Oct 24, 1995 | Yes |
| 00 | Nov 22, 1995 | — | — |
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 42-479-36352 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-36352 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/47936352, documented in the API reference.