WELL · 42-479-36192 · DISTRICT 4
Callaghan Ranch #50
Webb County · Callaghan N. (Wilcox Lo.) field · Vertical
Callaghan Ranch #50 (API 42-479-36192) is a plugged well in Webb County, plugged May 5, 2010, last operated by Mobil Producing TX. & N.M. Inc..
The RRC has issued one drilling permit, issued September 21, 1994, permitted to 7,500 ft.
Completion filings report 2 formation tops, including Wilcox, Lobo 1.
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 Jun 1999 |
| Latest permit | Mobil Producing TX. & N.M. Inc.Sep 21, 1994 |
- 7,500
- total depth, ft
- 1
- permits on file
- Sep 21, 1994
- last permit issued
- Jan 17, 1995
- completed
- 0
- cumulative oil, bbl
- 1.11M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1995 THROUGH May 2010
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jan 17, 1995
- Shut in
- —
- Plugged
- May 5, 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 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 |
|---|---|---|---|---|---|---|
| Callaghan Ranch G-4-152834 | Callaghan, N. (Wilcox, Lo.) | Mobil Producing TX. & N.M. Inc. | 1 | 0 | 1.11M | Jan 1995 – May 2010 |
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 1995 → Jun 1999
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 428250-99 | Drill | Mobil Producing TX. & N.M. Inc. | Sep 21, 1994 | Sep 21, 1994 | Nov 14, 1994 | 7,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-152834 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 520 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,540 | 6,578 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 60 | — | — |
| 7 | 3,568 | 8.75 | 560 S |
| 2.875 | 6,774 | 6.125 | 550 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 | Apr 6, 1995 | Feb 1, 1995 | Yes |
| 00 | Feb 28, 1995 | — | — |
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 42-479-36192 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-36192 → 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/47936192, documented in the API reference.