WELL · 42-409-32048 · DISTRICT 4
Mayo, J.W. a/C 1 #79
San Patricio County · Vertical
Mayo, J.W. A/C 1 #79 (API 42-409-32048) is a permitted well in San Patricio County filed by Exxon Corp.; no completion report is on file yet.
The RRC has issued 5 drilling permits between 1985 and 1992, permitted to 6,900 ft.
Its 2 leases have reported 424K barrels of oil and 481K mcf of gas since January 1993, last reporting in June 2005. The leases carry 56 wells, so these are lease totals, not this well alone.
Operator of record
Houston, TX · P-5 Y, filed Jan 3, 2003 · 19,549 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Hec Petroleum, Inc.through Aug 2004 |
| Latest permit | Exxon Corp.Jan 9, 1992 |
- 6,900
- total depth, ft
- 5
- permits on file
- Jan 9, 1992
- last permit issued
- —
- completed
- 424K
- cumulative oil, bbl
- 481K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jun 2005
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- —
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 56 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mayo, J. W., a/C 1 O-4-7253 | Taft (4000) | Hec Petroleum, Inc. | 45 | 395K | 439K | Jan 1993 – Jun 2005 |
| Mayo, J. W., a/C 1 O-4-7265 | Taft (4300) | Hec Petroleum, Inc. | 11 | 29.6K | 41.7K | Jan 1993 – May 2005 |
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.
- 1Exxon Corp.Jan 1993 → Jul 1994
- 2Cox Resources Corp.Aug 1994 → Aug 2000
- 3Hallwood Petroleum, Inc.Jul 2000 → Dec 2001
- 4Hec Petroleum, Inc.Jan 2002 → Aug 2004
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 394295-99 | Recompletion | Exxon Corp. | Nov 21, 1991 | Jan 9, 1992 | Jan 22, 1992 | 6,900 |
| 359135-99 | Recompletion | Exxon Corp. | May 10, 1989 | Jun 6, 1989 | — | 6,900 |
| 354938-99 | Recompletion | Exxon Corp. | Jan 6, 1989 | Jan 9, 1989 | — | 6,900 |
| 280794-99 | Drill | Exxon Corp. | Jul 19, 1985 | Jul 23, 1985 | — | 6,900 |
| 277764-99 | Drill | Exxon Corp. | Apr 22, 1985 | Jun 17, 1985 | — | 6,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-4-7253 | — | — | — | — |
| — | — O-4-7265 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,928 | 3,948 | Perforated |
| 4,334 | 4,341 | Perforated |
| 4,605 | 4,613 | Perforated |
| 5,605 | 5,615 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,232 | 12.25 | 610 S |
| 5.5 | 5,898 | 7.875 | 500 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 14, 1992 | Feb 19, 1992 | Yes |
| 00 | Mar 12, 1992 | Jul 13, 1989 | Yes |
| 00 | Aug 25, 1989 | Jul 13, 1989 | Yes |
| 00 | Aug 9, 1989 | — | — |
| 00 | Jul 3, 1989 | Apr 25, 1989 | Yes |
| 00 | Sep 25, 1985 | Jul 23, 1985 | — |
| 00 | Sep 5, 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 42-409-32048 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-409-32048 → 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/40932048, documented in the API reference.