WELL · 42-413-30718 · DISTRICT 7
Mayer Ranch #12
Schleicher County · Mayer Ranch (Canyon) field · Producing · Vertical
Mayer Ranch #12 (API 42-413-30718) is a well in Schleicher County operated by Zachry Oil And Gas Properties, completed September 16, 1978 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued August 1, 1978, permitted to 7,450 ft.
It was permitted by UV Industries, Inc. and has since transferred to Zachry Oil And Gas Properties on the wellbore schedule.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by UV Industries, Inc.; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Jul 4, 2026 · 12 permits on file · (210) 416-4456
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Zachry Oil and Gas Properties |
| Production reports | Zachry Oil and Gas Propertiesthrough Apr 2026 |
| Latest permit | UV Industries, Inc.Aug 1, 1978 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,450
- total depth, ft
- 1
- permits on file
- Aug 1, 1978
- last permit issued
- Sep 16, 1978
- completed
- 0
- cumulative oil, bbl
- 111K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 16, 1978
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 |
|---|---|---|---|---|---|---|
| Mayer Ranch G-9-78844 | Mayer Ranch (Canyon) | Zachry Oil and Gas Properties | 1 | 0 | 111K | Jan 1993 – Jul 2026 |
Gas, mcf lease total
Last 12 months 1,396 · prior 12 1,819(-23%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1American Cometra, Inc.Jan 1993 → Feb 1997
- 2Lomak Production CompanyMar 1997 → Aug 1998
- 3Range Production CompanySep 1998 → Oct 1999
- 4Zachry Oil and Gas PropertiesNov 1999 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 29715-99 | Drill | UV Industries, Inc. | Aug 1, 1978 | Aug 1, 1978 | Aug 4, 1978 | 7,450 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-9-78844 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,944 | 7,155 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,429 | — | 325 S |
| 4.5 | 7,320 | 7.875 | 700 S |
| 2.375 | — | — | — |
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 | Oct 16, 1978 | — |
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 42-413-30718 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-413-30718 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. 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/41330718, documented in the API reference.