WELL · 42-479-36626 · DISTRICT 4
South Callaghan Ranch #145
Webb County · Beccero Creek (Lobo Cons.) field · Vertical
South Callaghan Ranch #145 (API 42-479-36626) is a plugged well in Webb County, plugged September 11, 2012, last operated by Rosetta Resources Operating LP.
The RRC has issued 2 drilling permits (amended 3 times) between 1997 and 1998, permitted to 10,500 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 4 formation tops, including Lobo Unc., Lobo Stray, Lobo 1, Lobo 2.
Operator of record
Rosetta Resources Operating LP
Permitted by Mobil Producing TX. & N.M. Inc.; the EWA schedule now lists a different operator.
- Based in
- San Antonio, TX
- P-5 status
- Active (A)
- P-5 last filed
- Oct 1, 2025
- Permits on file
- 1,218
- Phone
- (210) 384-3200
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Rosetta Resources Operating LP |
| Production reports | Rosetta Resources Operating LPthrough Oct 2009 |
| Latest permit | Mobil Producing TX. & N.M. Inc.May 12, 1998 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,500
- total depth, ft
- 5
- permits on file
- May 12, 1998
- last permit issued
- Apr 13, 1998
- completed
- 0
- cumulative oil, bbl
- 941K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 1997 THROUGH Sep 2012
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 13, 1998
- Shut in
- —
- Plugged
- Sep 11, 2012
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 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| South Callaghan Ranch G-4-165919 | Beccero Creek (Lobo Cons.) | Rosetta Resources Operating LP | 1 | 0 | 941K | Oct 1997 – Sep 2012 |
| South Callaghan Ranch G-4-168178 | Beccero Creek (Lobo Cons.) | Rosetta Resources Operating LP | 1 | 0 | 0 | Apr 1998 – Sep 2012 |
| South Callaghan Ranch G-4-168179 | Beccero Creek (Lobo 2) | Rosetta Resources Operating LP | 1 | 0 | 0 | Apr 1998 – Feb 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.Nov 1997 → Mar 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 → Oct 2009
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 476202-99 | Recompletion | Mobil Producing TX. & N.M. Inc. | May 12, 1998 | May 12, 1998 | Apr 1, 1998 | 10,500 |
| 457564-96 | Drill | Mobil Producing TX. & N.M. Inc. | Dec 18, 1997 | Jan 21, 1997 | Sep 23, 1997 | 10,500 |
| 457564-97 | Drill | Mobil Producing TX. & N.M. Inc. | Aug 21, 1997 | Jan 21, 1997 | — | 10,500 |
| 457564-98 | Drill | Mobil Producing TX. & N.M. Inc. | Jul 28, 1997 | Jan 21, 1997 | — | 9,500 |
| 457564-99 | Drill | Mobil Producing TX. & N.M. Inc. | Jan 21, 1997 | Jan 21, 1997 | — | 9,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-165919 | — | — | — | — |
| — | — G-4-168178 | — | — | — | — |
| — | — G-4-168179 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 534 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lobo Unc. | 7,360 | -6,826 |
| Lobo Stray | 7,457 | -6,923 |
| Lobo 1 | 7,774 | -7,240 |
| Lobo 2 | 7,994 | -7,460 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,776 | 7,786 | Perforated |
| 8,019 | 8,029 | Perforated |
| 8,551 | 8,734 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 60 | — | — |
| 9.625 | 505 | 12.25 | 345 S |
| 7 | 6,888 | 8.75 | 675 S |
| 2.875 | 8,967 | 6.125 | 430 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 | Jul 28, 2008 | Apr 16, 2008 | — |
| 00 | Jun 19, 1998 | May 6, 1998 | Yes |
| 00 | Jun 4, 1998 | — | — |
| 00 | Jan 22, 1998 | Jan 9, 1998 | — |
| 00 | Jan 15, 1998 | — | — |
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 42-479-36626 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-36626 → 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/47936626, documented in the API reference.