TEXAS · WELLS · LA SALLE COUNTY · SOUTH TEXAS SYNDICATE II-B LEASE · API 42-283-31906 · DISTRICT 01
South Texas Syndicate II-B #12
La Salle County · White Kitchen (Edwards Lime) field · Temp Abandoned · Vertical
South Texas Syndicate II-B #12 (API 42-283-31906) is a well in La Salle County operated by Crescent Energy Operating LLC, completed September 22, 2006 and listed as temp abandoned on the RRC schedule, shut in April 1, 2017.
The RRC has issued one drilling permit, issued November 3, 2005, permitted to 10,750 ft.
It was permitted by Pioneer Natural Res. USA, Inc. and has since transferred to Crescent Energy Operating LLC on the wellbore schedule.
Completion filings report 2 formation tops, including Austin Chalk, Edwards.
Its lease has reported 419K mcf of gas since September 2006, with no volume in the three years through April 2026.
Operator of record
Permitted by Pioneer Natural Res. USA, Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Aug 28, 2025
- Permits on file
- 54
- Phone
- (713) 337-4600
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Crescent Energy Operating LLC |
| Production reports | Crescent Energy Operating, LLCthrough Mar 2017 |
| Latest permit | Pioneer Natural Res. USA, Inc.Nov 3, 2005 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,750
- total depth, ft
- 1
- permits on file
- Nov 3, 2005
- last permit issued
- Sep 22, 2006
- completed
- 0
- cumulative oil, bbl
- 419K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2006 THROUGH Mar 2017
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 22, 2006
- Shut in
- Apr 1, 2017
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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 II-B G-1-221325 | White Kitchen (Edwards Lime) | Crescent Energy Operating, LLC | 1 | 0 | 419K | Sep 2006 – Mar 2017 |
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.
- 1Pioneer Natural Res. USA, Inc.Sep 2006 → Mar 2017
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 608796-99 | Drill | Pioneer Natural Res. USA, Inc. | Nov 1, 2005 | Nov 3, 2005 | Apr 1, 2006 | 11,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 22, 2006 | South Texas Syndicate II-B G-1-221325 | White Kitchen (Edwards Lime) | Crescent Energy Operating LLC | Temp Abandoned · shut in Apr 1, 2017 | 10,750 |
Formation tops
As filed on W-2/G-1. Subsea from 410 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 9,922 | -9,512 |
| Edwards | 10,257 | -9,847 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,290 | 10,336 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,992 | 12.25 | 1,025 S |
| 5.5 | 10,744 | 8.75 | 740 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Mar 7, 2007 | Oct 11, 2006 | Yes |
| 00 | Nov 14, 2006 | — | — |
Well logs
1 log loaded from the RRC's log index, the latest received Sep 11, 2009. Density, Neutron. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| NEUTRON/DENSITY POROSITYSpans Austin Chalk, Edwards | TIFF | 25 to 10,757 | Sep 11, 2009run Apr 12, 2006 | 6.19 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-283-31906 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-283-31906 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/28331906, documented in the API reference.