WELL · 42-203-31154 · DISTRICT 6
Mayo #4
Harrison County · McKay field · Vertical
Mayo #4 (API 42-203-31154) is a well in Harrison County operated by Gibson Drlg. CO., completed August 15, 1984.
The RRC has issued 2 drilling permits between 1984 and 1986, permitted to 6,800 ft.
Completion filings report 9 formation tops, including Nacatoch, Top Nacatosh, Blossom, Austin Chalk.
No lease production has been reported under this well’s leases.
Operator of record
Kilgore, TX · P-5 Y, filed Feb 5, 1992 · 121 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Gibson Drlg. Co. |
| Production reports | Jandar Exploration, L. C.through Sep 2021 |
| Latest permit | Gibson Drlg. Co.Sep 5, 1986 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,800
- total depth, ft
- 2
- permits on file
- Sep 5, 1986
- last permit issued
- Aug 15, 1984
- completed
- 0
- cumulative oil, bbl
- 316K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Aug 15, 1984
- 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mayo G-6-122169 | Elysian (Travis Peak) | TC Oil and Gas, LLC | 1 | 0 | 316K | Jan 1993 – Jul 2026 |
| — G-6-112597 | — | — | 0 | 0 | 0 | — |
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.
- 1Sonat Exploration Company -TylerJan 1993 → Jan 1995
- 2Jandar Exploration, L. C.Nov 1995 → Sep 2021
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 320116-99 | Recompletion | Gibson Drlg. Co. | Sep 3, 1986 | Sep 5, 1986 | — | 6,800 |
| 242838-99 | Drill | Gibson Drlg. Co. | Jun 21, 1984 | Jun 21, 1984 | Jun 29, 1984 | 6,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-6-112597 | — | — | — | — |
| — | — G-6-122169 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 322 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| NacatochTOP NACATOCH | 1,060 | -738 |
| Top Nacatosh | 1,060 | -738 |
| Blossom | 2,190 | -1,868 |
| BlossomTOP BLOSSOM | 2,190 | -1,868 |
| Austin ChalkAUSTIN | 2,440 | -2,118 |
| Austin ChalkTOP AUSTIN | 2,440 | -2,118 |
| Top Massive Anhy | 4,960 | -4,638 |
| RodessaTOP RODESSA | 5,160 | -4,838 |
| James LimeJAMES | 5,650 | -5,328 |
| James LimeTOP JAMES LIME | 5,650 | -5,328 |
| PettitTOP PETTIT | 5,920 | -5,598 |
| Travis Peak | 6,220 | -5,898 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,018 | 6,024 | Perforated |
| 6,284 | 6,287 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 510 | 12.25 | 400 sx |
| 4.5 | 6,700 | 7.875 | 675 sx |
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 | Oct 8, 1986 | Aug 29, 1986 | Yes |
| 00 | Oct 3, 1986 | — | — |
| 00 | Oct 4, 1984 | Sep 10, 1984 | — |
| 00 | Oct 3, 1984 | Sep 10, 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 42-203-31154 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-203-31154 → 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/20331154, documented in the API reference.