WELL · 42-479-38479 · DISTRICT 4
Mayers John #11
Webb County · Rottersman (9020) field · Vertical
Mayers John #11 (API 42-479-38479) is a plugged well in Webb County, plugged August 23, 2012, last operated by Rosetta Resources Operating LP.
The RRC has issued 3 drilling permits between 2003 and 2004, permitted to 11,000 ft.
It was permitted by Calpine Natural Gas L.P. and has since transferred to Rosetta Resources Operating LP on the wellbore schedule.
Completion filings report 5 formation tops, including Lobo Unc., Lobo X, Lobo 1, Lobo 6.
Operator of record
Rosetta Resources Operating LP
Permitted by Calpine Natural Gas L.P.; the EWA schedule now lists a different operator.
San Antonio, TX · P-5 Y, filed Aug 4, 2025 · 1,218 permits on file · (210) 384-5000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Rosetta Resources Operating LP |
| Production reports | Rosetta Resources Operating LPthrough Nov 2006 |
| Latest permit | Calpine Natural Gas L.P.Apr 26, 2004 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,000
- total depth, ft
- 3
- permits on file
- Apr 26, 2004
- last permit issued
- May 1, 2004
- completed
- 0
- cumulative oil, bbl
- 114K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2003 THROUGH Aug 2012
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- May 1, 2004
- Shut in
- —
- Plugged
- Aug 23, 2012
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mayers, John G-4-197008 | Rottersman (Lobo) | Rosetta Resources Operating LP | 1 | 0 | 62.2K | Aug 2003 – Aug 2012 |
| Mayers, John G-4-198001 | Rottersman (9020) | Rosetta Resources Operating LP | 1 | 0 | 51.7K | Oct 2003 – Aug 2012 |
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.
- 1Calpine Natural Gas L.P.Sep 2003 → Dec 2005
- 2Rosetta Resources Operating LPJan 2006 → Nov 2006
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 544822-99 | Recompletion | Calpine Natural Gas L.P. | Apr 22, 2004 | Apr 26, 2004 | Jun 22, 2003 | 11,000 |
| 537360-99 | Recompletion | Calpine Natural Gas L.P. | Oct 9, 2003 | Oct 10, 2003 | Oct 24, 2003 | 11,000 |
| 534310-99 | Drill | Calpine Natural Gas L.P. | Jul 17, 2003 | Jul 17, 2003 | Jul 29, 2003 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-197008 | — | — | — | — |
| — | — G-4-198001 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 501 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lobo Unc. | 8,520 | -8,019 |
| Lobo X | 8,704 | -8,203 |
| Lobo 1 | 8,786 | -8,285 |
| Lobo 6 | 9,202 | -8,701 |
| Cretaceous | 9,746 | -9,245 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,707 | 8,724 | Perforated |
| 8,708 | 8,724 | Perforated |
| 8,790 | 8,793 | Perforated |
| 8,812 | 8,813 | Perforated |
| 8,819 | 8,821 | Perforated |
| 9,257 | 9,269 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,559 | 12.25 | 604 S |
| 7 | 7,575 | 8.5 | 316 S |
| 7 | 7,575 | 8.75 | 316 S |
| 3.5 | 10,197 | 6.125 | 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 | Aug 3, 2004 | Jun 7, 2004 | — |
| 00 | Jul 30, 2004 | Jun 7, 2004 | — |
| 00 | Jul 30, 2004 | Apr 30, 2004 | — |
| 00 | Jan 7, 2004 | Nov 20, 2003 | Yes |
| 00 | Dec 11, 2003 | — | — |
| 00 | Oct 22, 2003 | Sep 26, 2003 | Yes |
| 00 | Oct 9, 2003 | — | — |
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 42-479-38479 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-38479 → 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/47938479, documented in the API reference.