WELL · 42-479-36696 · DISTRICT 4
South Callaghan Ranch #157
Webb County · Dos Payasos (Lobo Stray) field · Vertical
South Callaghan Ranch #157 (API 42-479-36696) is a plugged well in Webb County, plugged October 1, 2012, last operated by Rosetta Resources Operating LP.
The RRC has issued one drilling permit, issued May 29, 1997, permitted to 10,000 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 Stray, Lobo 1, Lobo 2, Lobo 6.
Its 2 leases have reported 783 barrels of oil and 11.3K mcf of gas since October 1997, last reporting in September 2012. The leases carry 2 wells, so these are lease totals, not this well alone.
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 | Michael Petroleum Corporationthrough Apr 1999 |
| Latest permit | Mobil Producing TX. & N.M. Inc.May 29, 1997 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,000
- total depth, ft
- 1
- permits on file
- May 29, 1997
- last permit issued
- Oct 9, 1997
- completed
- 783
- cumulative oil, bbl
- 11.3K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 1997 THROUGH Sep 2012
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 9, 1997
- Shut in
- —
- Plugged
- Oct 1, 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 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-4-168575 | Dos Payasos (Lobo Stray) | Rosetta Resources Operating LP | 1 | 0 | 5.72K | May 1998 – Sep 2012 |
| South Callaghan Ranch O-4-12731 | Dos Payasos (Lobo Stray) | Mobil Producing TX. & N.M. Inc. | 1 | 783 | 5.59K | Oct 1997 – Sep 1998 |
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.Oct 1997 → Apr 1998
- 2Michael Petroleum CorporationMay 1998 → Apr 1999
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 463035-99 | Drill | Mobil Producing TX. & N.M. Inc. | May 29, 1997 | May 29, 1997 | Aug 12, 1997 | 10,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-168575 | — | — | — | — |
| — | — O-4-12731 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 622 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lobo Stray | 6,966 | -6,344 |
| Lobo 1 | 7,246 | -6,624 |
| Lobo 2 | 7,435 | -6,813 |
| Lobo 6 | 7,540 | -6,918 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,968 | 7,014 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 60 | — | — |
| 9.625 | 197 | 12.25 | 180 S |
| 9.625 | 297 | 12.25 | 180 S |
| 7 | 6,518 | 8.75 | 225 S |
| 2.875 | 8,407 | 6.125 | 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. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jun 30, 1999 | Jun 16, 1998 | — |
| 00 | Jul 1, 1998 | — | — |
| 00 | Jan 30, 1998 | Dec 18, 1997 | Yes |
| 00 | Jan 21, 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 42-479-36696 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-36696 → 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/47936696, documented in the API reference.