TEXAS · WELLS · WEBB COUNTY · SOUTH CALLAGHAN RANCH LEASE · API 42-479-36168 · DISTRICT 04
South Callaghan Ranch #134
Webb County · Contempo (Lobo 2) field · Vertical
South Callaghan Ranch #134 (API 42-479-36168) is a plugged well in Webb County, plugged March 13, 2007, last operated by Rosetta Resources Operating LP.
The RRC has issued one drilling permit, issued August 22, 1994, permitted to 8,600 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 1.
Its lease has reported 372K mcf of gas since October 1994, with no volume in the three years through April 2026.
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 Jan 2006 |
| Latest permit | Mobil Producing TX. & N.M. Inc.Aug 22, 1994 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,600
- total depth, ft
- 1
- permits on file
- Aug 22, 1994
- last permit issued
- Oct 19, 1994
- completed
- 0
- cumulative oil, bbl
- 372K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 1994 THROUGH Jan 2006
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 19, 1994
- Shut in
- —
- Plugged
- Mar 13, 2007
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 |
|---|---|---|---|---|---|---|
| South Callaghan Ranch G-4-152611 | Contempo (Lobo 2) | Rosetta Resources Operating LP | 1 | 0 | 372K | Oct 1994 – Jan 2006 |
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 1994 → Apr 1998
- 2Michael Petroleum CorporationMay 1998 → Nov 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 → Jan 2006
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 427228-99 | Drill | Mobil Producing TX. & N.M. Inc. | Aug 22, 1994 | Aug 22, 1994 | Sep 18, 1994 | 8,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 19, 1994 | South Callaghan Ranch G-4-152611 | Contempo (Lobo 2) | Rosetta Resources Operating LP | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 599 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,918 | 7,934 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 60 | — | — |
| 9.625 | 267 | 12.25 | 160 S |
| 7 | 6,599 | 8.75 | 275 S |
| 2.875 | 8,233 | 6.125 | 400 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 | Mar 21, 1995 | Dec 14, 1994 | Yes |
| 00 | Feb 7, 1995 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received May 10, 2007. Density, Neutron, 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 |
|---|---|---|---|---|
| Combination: Resistivity/Acoustic PorosityPHASOR DUAL INDUCTION SONIC LITHODENSITY COMPENSATED NEUTRONSpans Wilcox, Lobo 1 | TIFF | 6,590 to 8,246 | May 10, 2007run Oct 1, 1994 | — |
"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 42-479-36168 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-36168 → 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/47936168, documented in the API reference.