WELL · 42-311-32149 · DISTRICT 1
South Texas Syndicate #401
McMullen County · Big Mule (5500 Sand) field · Vertical
South Texas Syndicate #401 (API 42-311-32149) is a plugged well in Mcmullen County, plugged November 3, 2014, last operated by Tracker Oil & Gas Inc..
The RRC has issued one drilling permit, issued September 25, 1984, permitted to 5,950 ft.
It was permitted by Chanoco Corporation and has since transferred to Tracker Oil & Gas Inc. on the wellbore schedule.
Completion filings report 5 formation tops, including Crockett, Queen City, Carrizo, Wilcox.
Operator of record
Permitted by Chanoco Corporation; the EWA schedule now lists a different operator.
Bastrop, TX · P-5 Y, filed Jan 5, 2026
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Tracker Oil & Gas Inc. |
| Production reports | Tracker Oil & Gas, Inc.through Apr 2001 |
| Latest permit | Chanoco CorporationSep 25, 1984 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,950
- total depth, ft
- 1
- permits on file
- Sep 25, 1984
- last permit issued
- Nov 8, 1984
- completed
- 0
- cumulative oil, bbl
- 96.4K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Nov 8, 1984
- Shut in
- —
- Plugged
- Nov 3, 2014
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 |
|---|---|---|---|---|---|---|
| South Texas Syndicate G-1-113835 | Big Mule (5500 Sand) | Tracker Oil & Gas, Inc. | 1 | 0 | 96.4K | Jan 1993 – Jul 2026 |
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.
- 1Chanoco CorporationJan 1993 → Feb 1994
- 2Buffalo Oil Corp.Mar 1994 → Nov 1995
- 3Tracker Oil & Gas, Inc.Apr 1999 → Apr 2001
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 252426-99 | Drill | Chanoco Corporation | Sep 21, 1984 | Sep 25, 1984 | Oct 10, 1984 | 5,950 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-1-113835 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 401 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Crockett | 1,410 | -1,009 |
| Queen City | 1,960 | -1,559 |
| Carrizo | 3,550 | -3,149 |
| WilcoxWILCOX MARINE | 4,840 | -4,439 |
| L. Wilcox Mula SD | 5,500 | -5,099 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,512 | 5,518 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 250 | 12.25 | 100 S |
| 4.5 | 5,881 | 7.875 | 127 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 | Dec 20, 1984 | Dec 3, 1984 | — |
| 00 | Dec 12, 1984 | Nov 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 42-311-32149 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-311-32149 → 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/31132149, documented in the API reference.