TEXAS · WELLS · FRIO COUNTY · LITTLE-DUKES UNIT LEASE · API 42-163-33560 · DISTRICT 01
Little-Dukes Unit #1H
Frio County · Doering Ranch (Georgetown) field · Producing · Horizontal
Little-Dukes Unit #1H (API 42-163-33560) is a horizontal well in Frio County operated by Trailblazer Energy Resources LLC, completed April 18, 2012 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued January 19, 2012, permitted to 5,832 ft.
It was permitted by Virtex Operating Company, Inc. and has since transferred to Trailblazer Energy Resources LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Olmos, Eagle Ford, Buda.
Its lease has reported 91K barrels of oil and 415K mcf of gas since March 2012, last reporting in July 2026.
Operator of record
Trailblazer Energy Resources LLC
Permitted by Virtex Operating Company, Inc.; 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 Apr 2026 |
| Latest permit | Virtex Operating Company, Inc.Jan 19, 2012 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,832
- total depth, ft
- 1
- permits on file
- Jan 19, 2012
- last permit issued
- Apr 18, 2012
- completed
- 91K
- cumulative oil, bbl
- 415K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2012 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 18, 2012
- Shut in
- —
- 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 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 |
|---|---|---|---|---|---|---|
| Little-Dukes Unit O-1-16272 | Doering Ranch (Georgetown) | Trailblazer Energy Resources,llc | 1 | 91K | 415K | Mar 2012 – Jul 2026 |
Gas, mcf lease total
Last 12 months 26,798 · prior 12 15,336(+75%)
Oil, barrels lease total
Last 12 months 1,348 · prior 12 1,290(+4%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Virtex Operating Company, Inc.Mar 2012 → Aug 2023
- 2Trailblazer Energy Resources,llcSep 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 731477-99 | Drill | Virtex Operating Company, Inc. | Jan 11, 2012 | Jan 19, 2012 | Jan 19, 2012 | 6,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 18, 2012 | Little-Dukes Unit O-1-16272 | Doering Ranch (Georgetown) | Trailblazer Energy Resources LLC | Producing | 5,832 |
Formation tops
As filed on W-2/G-1. Subsea from 573 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Olmos | 3,970 | -3,397 |
| Eagle Ford | 5,623 | -5,050 |
| Buda | 5,716 | -5,143 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,952 | 11,000 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,715 | 12.25 | 744 S |
| 7 | 5,952 | 8.75 | 345 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 | Feb 5, 2013 | May 24, 2012 | Yes |
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 42-163-33560 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-33560 → 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/16333560, documented in the API reference.