TEXAS · WELLS · MADISON COUNTY · API 42-313-30858 · DISTRICT 03
Ferguson Prison Unit #0801SA
Madison County · Fort Trinidad East (Buda) field · SWR-10-Well · Horizontal
Ferguson Prison Unit #0801SA (API 42-313-30858) is a horizontal well in Madison County operated by Trailblazer Energy Resources LLC, completed September 21, 2011 and listed as swr-10-well on the RRC schedule, shut in February 1, 2020.
The RRC has issued one drilling permit (amended 3 times), issued July 26, 2010, permitted to 11,090 ft.
It was permitted by Sem Operating Company LLC and has since transferred to Trailblazer Energy Resources LLC on the wellbore schedule.
Completion filings report 11 formation tops, including Wilcox, Austin Chalk, Eagle Ford, Sub-Clarksville.
Its 3 leases have reported 27.2K barrels of oil and 605K mcf of gas since September 2011, with no volume in the three years through April 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Trailblazer Energy Resources LLC
Permitted by Sem Operating Company LLC; the EWA schedule now lists a different operator.
- Based in
- Tulsa, OK
- P-5 status
- Active (A)
- P-5 last filed
- Oct 16, 2025
- Permits on file
- 30
- Phone
- (918) 728-3020
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Trailblazer Energy Resources LLC |
| Production reports | Trailblazer Energy Resources,llcthrough Jan 2020 |
| Latest permit | Sem Operating Company LLCJul 26, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,090
- total depth, ft
- 4
- permits on file
- Jul 26, 2010
- last permit issued
- Sep 21, 2011
- completed
- 27.2K
- cumulative oil, bbl
- 605K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2011 THROUGH Jan 2020
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 21, 2011
- Shut in
- Feb 1, 2020
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Ferguson Prison Unit G-6-279448 | Eastham State Farm (Glenrose) | Trailblazer Energy Resources,llc | 1 | 2.4K | 108K | Sep 2014 – Jan 2020 |
| Ferguson Prison Unit G-3-277051 | Fort Trinidad (Glen Rose, Upper) | — | 1 | 24.8K | 497K | Sep 2011 – Aug 2014 |
| Ferguson Prison Unit G-3-278332 | Fort Trinidad, East (Buda) | Trailblazer Energy Resources,llc | 1 | 0 | 0 | Oct 2013 – — |
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.
- 1Navidad Resources, LLCSep 2011 → Aug 2013
- 2Sem Operating Company LLCSep 2013 → Jan 2020
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 699293-96 | Drill | Sem Operating Company LLC | Sep 9, 2014 | Jul 26, 2010 | Jun 28, 2011 | 16,251 |
| 699293-97 | Drill | Navidad Resources, LLC | Jul 6, 2011 | Jul 26, 2010 | Jun 28, 2011 | 16,251 |
| 699293-98 | Drill | Navidad Resources, LLC | Jun 9, 2011 | Jul 26, 2010 | — | 13,000 |
| 699293-99 | Drill | Navidad Resources, LLC | Jul 20, 2010 | Jul 26, 2010 | Jun 28, 2011 | 13,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 1, 2014 | Ferguson Prison Unit G-6-279448 | Eastham State Farm (Glenrose) | Trailblazer Energy Resources LLC | Temp Abandoned · shut in Feb 1, 2020 | 11,090 |
| Sep 21, 2011 | Ferguson Prison Unit G-3-278332 | Fort Trinidad East (Buda) | Trailblazer Energy Resources LLC | SWR-10-Well · shut in Nov 1, 2013 | 11,090 |
| Sep 21, 2011 | Ferguson Prison Unit G-3-277051 | Fort Trinidad (Glen Rose Upper) | Sem Operating Company LLC | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 176 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Wilcox | 2,900 | -2,724 |
| Austin Chalk | 8,820 | -8,644 |
| Eagle FordEAGLEFORD | 9,104 | -8,928 |
| Sub-Clarksville | 9,110 | -8,934 |
| Woodbine | 9,198 | -9,022 |
| Woodbine | 9,204 | -9,028 |
| Dex Buda | 9,700 | -9,524 |
| Buda | 10,120 | -9,944 |
| Georgetown | 10,188 | -10,012 |
| Buda | 10,993 | -10,817 |
| Glen Rose | 11,250 | -11,074 |
| Glen RoseGLENROSE | 11,250 | -11,074 |
| Frio | — | — |
| Lewisville | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,124 | 10,170 | Perforated |
| 10,124 | 10,276 | Perforated |
| 10,208 | 10,276 | Perforated |
| 11,412 | 11,592 | Perforated |
| 11,412 | 15,384 | Perforated |
| 11,869 | 15,384 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 3,015 | 12.25 | 1,000 S |
| 7 | 11,820 | 8.75 | 730 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 22, 2016 | Jul 8, 2015 | Yes |
| 00 | Nov 5, 2015 | Jun 12, 2015 | — |
| 00 | Jun 30, 2015 | Dec 21, 2012 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Sep 13, 2018. Resistivity. 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 |
|---|---|---|---|---|
| InductionSpans Wilcox, Austin Chalk, Eagle Ford, Sub-Clarksville, Woodbine, Dex Buda, Buda, Georgetown | TIFF | 3,020 to 10,550 | Sep 13, 2018 | 7.98 |
"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 42-313-30858 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-313-30858 → 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/31330858, documented in the API reference.