WELL · 42-311-31883 · DISTRICT 1
South Texas Syndicate #203
McMullen County · Big Mule (5500 Sand) field · Vertical
South Texas Syndicate #203 (API 42-311-31883) is a plugged well in Mcmullen County, plugged October 27, 2014, last operated by Tracker Oil & Gas Inc..
The RRC has issued one drilling permit, issued July 26, 1983, permitted to 6,000 ft.
It was permitted by Hawn Bros-Chapman Oil-La Fete and has since transferred to Tracker Oil & Gas Inc. on the wellbore schedule.
Operator of record
Permitted by Hawn Bros-Chapman Oil-la Fete; 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 | Buffalo Oil Corp.through Nov 1994 |
| Latest permit | Hawn Bros-Chapman Oil-la FeteJul 26, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,000
- total depth, ft
- 1
- permits on file
- Jul 26, 1983
- last permit issued
- Sep 8, 1983
- completed
- 0
- cumulative oil, bbl
- 35
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Oct 2014
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 8, 1983
- Shut in
- —
- Plugged
- Oct 27, 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-1-107739 | Big Mule (5500 Sand) | Tracker Oil & Gas, Inc. | 1 | 0 | 35 | Jan 1993 – Oct 2014 |
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.
- 1Buffalo Oil Corp.Nov 1994 → Nov 1994
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 202776-99 | Drill | Hawn Bros-Chapman Oil-la Fete | Jul 26, 1983 | Jul 26, 1983 | Aug 8, 1983 | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-1-107739 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,535 | 5,541 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 532 | 12.25 | 250 S |
| 2.375 | 5,462 | — | — |
| 4.5 | 5,672 | 7.875 | 1,224 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 | Jan 12, 1984 | Sep 30, 1983 | — |
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 42-311-31883 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-311-31883 → 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/31131883, documented in the API reference.