WELL · 42-163-30385 · DISTRICT 1
Calvert J. H. #C 4
Frio County · W. B. S. (Olmos) field · Vertical
Calvert J. H. #C 4 (API 42-163-30385) is a plugged well in Frio County, plugged May 7, 1996, last operated by C And S Oil & Gas.
The RRC has issued one drilling permit, issued February 1, 1995, permitted to 4,600 ft.
Completion filings report one formation top, including Olmos.
Its 2 leases have reported 116 barrels of oil and 4 mcf of gas since January 1993, last reporting in August 2005. The leases carry 5 wells, so these are lease totals, not this well alone.
Operator of record
San Antonio, TX · P-5 Y, filed Feb 6, 1998 · 5 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | C and S Oil & Gas |
| Production reports | C and S Oil & Gasthrough Feb 1995 |
| Latest permit | C and S Oil & GasFeb 1, 1995 |
- 4,600
- total depth, ft
- 1
- permits on file
- Feb 1, 1995
- last permit issued
- Feb 7, 1995
- completed
- 116
- cumulative oil, bbl
- 4
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Aug 2005
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 7, 1995
- Shut in
- —
- Plugged
- May 7, 1996
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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Calvert, J.H. -C- O-1-4559 | Pearsall (Austin Chalk) | Frio SWD, Inc. | 4 | 116 | 3 | Jan 1993 – Aug 2005 |
| Calvert, J. H. G-1-153088 | W. B. S. (Olmos) | C and S Oil & Gas | 1 | 0 | 1 | Feb 1995 – May 1996 |
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.
- 1Valence Operating CompanyJan 1993 → Mar 1993
- 2Frio SWD, Inc.Sep 1993 → Sep 1993
- 3C and S Oil & GasFeb 1995 → Feb 1995
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 431959-99 | Reenter | C and S Oil & Gas | Jan 18, 1995 | Feb 1, 1995 | Feb 3, 1995 | 4,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-1-153088 | — | — | — | — |
| — | — O-1-4559 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 582 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Olmos | 4,480 | -3,898 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,480 | 4,482 | Perforated |
| — | 5,841 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 283 | — | — |
| 4.5 | 6,152 | — | — |
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 | Mar 28, 1995 | Feb 23, 1995 | — |
| 00 | Mar 8, 1995 | — | — |
| 00 | Jan 12, 1984 | — | — |
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 42-163-30385 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-30385 → 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/16330385, documented in the API reference.