WELL · 42-479-34156 · DISTRICT 4
Callaghan Ranch #12
Webb County · Hirsch (6900) field · Vertical
Callaghan Ranch #12 (API 42-479-34156) is a plugged well in Webb County, plugged May 20, 2010, last operated by Mobil Producing TX. & N.M. Inc..
The RRC has issued 2 drilling permits between 1985 and 1999, permitted to 7,200 ft.
Completion filings report one formation top, including 6900 Sand.
Operator of record
Mobil Producing TX. & N.M. Inc.
- Based in
- Spring, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jun 4, 2025
- Permits on file
- 6,763
- Phone
- (346) 474-9142
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Mobil Producing TX. & N.M. Inc. |
| Production reports | Mobil Producing TX. & N.M. Inc.through Aug 1999 |
| Latest permit | Mobil Producing TX. & N.M. Inc.Jul 8, 1999 |
- 7,200
- total depth, ft
- 2
- permits on file
- Jul 8, 1999
- last permit issued
- Sep 10, 1986
- completed
- 0
- cumulative oil, bbl
- 305K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH May 2010
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 10, 1986
- Shut in
- —
- Plugged
- May 20, 2010
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 |
|---|---|---|---|---|---|---|
| Callaghan Ranch G-4-174786 | Hirsch (Wilcox 6250) | Mobil Producing TX. & N.M. Inc. | 1 | 0 | 0 | Oct 1999 – May 2010 |
| Callaghan Ranch G-4-117832 | Hirsch (6900) | Mobil Producing TX. & N.M. Inc. | 1 | 0 | 305K | Jan 1993 – Oct 1999 |
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.May 1995 → Aug 1999
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 485717-99 | Recompletion | Mobil Producing TX. & N.M. Inc. | Jul 8, 1999 | Jul 8, 1999 | Aug 4, 1999 | 7,059 |
| 274914-99 | Drill | Mobil Producing TX. & N.M. Inc. | May 10, 1985 | May 13, 1985 | Jun 27, 1985 | 7,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-117832 | — | — | — | — |
| — | — G-4-174786 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 518 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| 6900 Sand | 6,811 | -6,293 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,185 | 6,198 | Perforated |
| 6,760 | 6,766 | Perforated |
| 6,778 | 6,784 | Perforated |
| 6,804 | 6,811 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 800 | 12.25 | 411 S |
| 8.625 | 800 | — | — |
| 8.625 | 826 | 12.25 | 435 S |
| 5.5 | 7,150 | 7.125 | 225 S |
| 5.5 | 7,150 | 8.75 | 883 S |
| 5.5 | 7,150 | — | — |
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 | Dec 20, 1999 | Nov 8, 1999 | Yes |
| 00 | Nov 12, 1999 | — | — |
| 00 | Nov 7, 1986 | Oct 7, 1986 | — |
| 00 | Sep 13, 1985 | Aug 19, 1985 | — |
| 00 | Sep 10, 1985 | — | — |
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 42-479-34156 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-34156 → 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/47934156, documented in the API reference.