WELL · 42-435-38075 · DISTRICT 7
Mayer #12A
Sutton County · Mayer Ranch (Canyon) field · Producing · Vertical
Mayer #12A (API 42-435-38075) is a well in Sutton County operated by Zachry Oil And Gas Properties, completed October 14, 2006 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued July 18, 2006, permitted to 8,300 ft.
It was permitted by Mariner Energy, Inc. and has since transferred to Zachry Oil And Gas Properties on the wellbore schedule.
Completion filings report 4 formation tops, including A Sand, B Sand, C Sand, D Sand.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Mariner Energy, 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 | Mariner Energy, Inc.Jul 18, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,300
- total depth, ft
- 1
- permits on file
- Jul 18, 2006
- last permit issued
- Oct 14, 2006
- completed
- 0
- cumulative oil, bbl
- 142K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2006 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 14, 2006
- 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 G-9-222458 | Mayer Ranch (Canyon) | Zachry Oil and Gas Properties | 1 | 0 | 142K | Oct 2006 – Jul 2026 |
Gas, mcf lease total
Last 12 months 311 · prior 12 444(-30%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Mariner Energy, Inc.Oct 2006 → Nov 2010
- 2Apache CorporationDec 2010 → Oct 2020
- 3Zachry Oil and Gas PropertiesJun 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 622612-99 | Drill | Mariner Energy, Inc. | Jul 14, 2006 | Jul 18, 2006 | Sep 1, 2006 | 8,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-9-222458 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,329 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| A Sand | 6,923 | -4,594 |
| B Sand | 7,036 | -4,707 |
| C Sand | 7,115 | -4,786 |
| D Sand | 7,401 | -5,072 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,923 | 6,988 | Perforated |
| 7,036 | 7,051 | Perforated |
| 7,115 | 7,222 | Perforated |
| 7,401 | 7,413 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,290 | 12.25 | 410 S |
| 4.5 | 7,536 | 7.875 | 350 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 | Mar 22, 2007 | Nov 2, 2006 | Yes |
| 00 | Nov 30, 2006 | — | — |
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 42-435-38075 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-435-38075 → 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/43538075, documented in the API reference.