WELL · 42-409-03933 · DISTRICT 4
Mayo, J. W. a/C #1 #64
San Patricio County · Vertical
Mayo, J. W. A/C #1 #64 (API 42-409-03933) is a permitted well in San Patricio County filed by Exxon Corp.; no completion report is on file yet.
The RRC has issued 3 drilling permits between 1978 and 1980, permitted to 4,985 ft.
Its 2 leases have reported 93.3K barrels of oil and 116K mcf of gas since January 1993, last reporting in May 2005. The leases carry 16 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Houston, TX
- P-5 status
- See remarks (S)
- P-5 last filed
- Mar 15, 1999
- Permits on file
- 19,549
- Phone
- (713) 431-1125
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.Apr 25, 1980 |
- 4,985
- total depth, ft
- 3
- permits on file
- Apr 25, 1980
- last permit issued
- —
- completed
- 93.3K
- cumulative oil, bbl
- 116K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH May 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 16 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-4-7265 | Taft (4300) | Hec Petroleum, Inc. | 11 | 29.6K | 41.7K | Jan 1993 – May 2005 |
| Mayo, J. W. a/C 1 O-4-8976 | Taft (4550) | Hec Petroleum, Inc. | 5 | 63.7K | 73.9K | 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 |
|---|---|---|---|---|---|---|
| 83482-99 | Other | Exxon Corp. | Apr 25, 1980 | Apr 25, 1980 | — | 4,985 |
| 35732-99 | Other | Exxon Corp. | Oct 11, 1978 | Oct 11, 1978 | — | 4,985 |
| 33409-99 | Other | Exxon Corp. | Sep 26, 1978 | Sep 26, 1978 | — | 4,985 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-4-7265 | — | — | — | — |
| — | — O-4-8976 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,614 | 4,619 | Perforated |
| — | 4,350 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 615 | — | — |
| 1.5 | 3,114 | — | — |
| 2.875 | 4,965 | — | — |
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 | Jan 12, 1984 | Dec 18, 1980 | — |
| 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 42-409-03933 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-409-03933 → 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/40903933, documented in the API reference.