WELL · 42-479-35479 · DISTRICT 4
South Callaghan Ranch #75
Webb County · Beccero Creek (Lobo Cons.) field · Vertical
South Callaghan Ranch #75 (API 42-479-35479) is a plugged well in Webb County, plugged March 12, 2008, last operated by Rosetta Resources Operating LP.
The RRC has issued 2 drilling permits (amended once) in 1992, permitted to 8,500 ft.
It was permitted by Mobil Producing TX. & N.M. Inc. and has since transferred to Rosetta Resources Operating LP on the wellbore schedule.
Completion filings report 2 formation tops, including Wilcox, Lobo 6.
Operator of record
Rosetta Resources Operating LP
Permitted by Mobil Producing TX. & N.M. Inc.; the EWA schedule now lists a different operator.
San Antonio, TX · P-5 Y, filed Aug 4, 2025 · 1,218 permits on file · (210) 384-5000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Rosetta Resources Operating LP |
| Production reports | Rosetta Resources Operating LPthrough Sep 2006 |
| Latest permit | Mobil Producing TX. & N.M. Inc.Oct 19, 1992 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,500
- total depth, ft
- 3
- permits on file
- Oct 19, 1992
- last permit issued
- Dec 9, 1992
- completed
- 0
- cumulative oil, bbl
- 1.02M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Mar 2008
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 9, 1992
- Shut in
- —
- Plugged
- Mar 12, 2008
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 |
|---|---|---|---|---|---|---|
| South Callaghan Ranch G-4-141895 | Beccero Creek (Wilcox, Lo.) | Rosetta Resources Operating LP | 1 | 0 | 0 | Jan 1993 – Mar 2008 |
| South Callaghan Ranch G-4-143033 | Beccero Creek (Lobo Cons.) | Rosetta Resources Operating LP | 1 | 0 | 1.02M | Jan 1993 – Mar 2008 |
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.
- 1Mobil Producing TX. & N.M. Inc.Jan 1993 → Apr 1998
- 2Michael Petroleum CorporationMay 1998 → Dec 2001
- 3Calpine Natural Gas CompanyJan 2002 → Apr 2002
- 4Calpine Natural Gas Company L.P.May 2002 → Jul 2002
- 5Calpine Natural Gas L.P.Aug 2002 → Dec 2005
- 6Rosetta Resources Operating LPJan 2006 → Sep 2006
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 404854-99 | Recompletion | Mobil Producing TX. & N.M. Inc. | Oct 19, 1992 | Oct 19, 1992 | Nov 10, 1992 | 8,500 |
| 399577-98 | Field transfer | Mobil Producing TX. & N.M. Inc. | Dec 9, 1992 | May 22, 1992 | — | 8,500 |
| 399577-99 | Drill | Mobil Producing TX. & N.M. Inc. | May 22, 1992 | May 22, 1992 | Jun 7, 1992 | 8,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-141895 | — | — | — | — |
| — | — G-4-143033 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 565 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,910 | 6,990 | Perforated |
| 6,990 | 7,120 | Open hole |
| 7,110 | 7,120 | Perforated |
| 7,736 | 7,804 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 80 | — | — |
| 9.625 | 860 | 12.25 | 325 S |
| 7 | 6,442 | 8.75 | 740 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 | Feb 10, 1993 | Jan 12, 1993 | — |
| 00 | Jan 21, 1993 | Dec 1, 1992 | Yes |
| 00 | Dec 7, 1992 | — | — |
| 00 | Aug 12, 1992 | Jul 30, 1992 | Yes |
| 00 | Aug 10, 1992 | — | — |
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 42-479-35479 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-35479 → 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.
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/47935479, documented in the API reference.