TEXAS · WELLS · HOUSTON COUNTY · API 42-225-31310 · DISTRICT 03
Chandler #1
Houston County · Ft. Trinidad E. (Edwards) field · SWR-10-Well · Vertical
Chandler #1 (API 42-225-31310) is a well in Houston County operated by Trailblazer Energy Resources LLC, completed May 15, 2014 and listed as swr-10-well on the RRC schedule, shut in April 1, 2025.
The RRC has issued one drilling permit (amended once), issued December 23, 2013, permitted to 11,515 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 8 formation tops, including Sub-Clarksville, Woodbine, Buda, Edwards.
Its 3 leases have reported 81.6K barrels of oil and 170K mcf of gas since May 2014, last reporting volume in March 2025. 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 Apr 2026 |
| Latest permit | Sem Operating Company LLCDec 23, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 11,515
- total depth, ft
- 2
- permits on file
- Dec 23, 2013
- last permit issued
- May 15, 2014
- completed
- 81.6K
- cumulative oil, bbl
- 170K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2014 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 15, 2014
- Shut in
- Apr 1, 2025
- 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 |
|---|---|---|---|---|---|---|
| Chandler G-6-275516 | Eastham State Farm (Glenrose) | Trailblazer Energy Resources,llc | 1 | 81.6K | 170K | May 2014 – Apr 2026 |
| Chandler G-3-275548 | Fort Trinidad, East (Buda) | Trailblazer Energy Resources,llc | 1 | 0 | 0 | May 2014 – — |
| Chandler G-3-275560 | Ft. Trinidad, E. (Edwards) | Trailblazer Energy Resources,llc | 1 | 0 | 0 | May 2014 – — |
Gas, mcf lease total
Last 12 months 0 · prior 12 985(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Sem Operating Company LLCMay 2014 → Feb 2020
- 2Etx Energy, LLCMar 2020 → Jul 2022
- 3Trailblazer Energy Resources,llcAug 2022 → Mar 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 775914-98 | Drill | Sem Operating Company LLC | Jun 11, 2014 | Dec 23, 2013 | Feb 1, 2014 | 12,500 |
| 775914-99 | Drill | Sem Operating Company LLC | Dec 18, 2013 | Dec 23, 2013 | Feb 1, 2014 | 12,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| May 15, 2014 | Chandler G-6-275516 | Eastham State Farm (Glenrose) | Trailblazer Energy Resources LLC | Temp Abandoned · shut in Apr 1, 2025 | 11,515 |
| May 15, 2014 | Chandler G-3-275560 | Ft. Trinidad E. (Edwards) | Trailblazer Energy Resources LLC | SWR-10-Well · shut in May 1, 2014 | 11,515 |
| May 15, 2014 | Chandler G-3-275548 | Fort Trinidad East (Buda) | Trailblazer Energy Resources LLC | SWR-10-Well · shut in May 1, 2014 | 11,515 |
Formation tops
As filed on W-2/G-1. Subsea from 268 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Sub-Clarksville | 8,596 | -8,328 |
| Woodbine | 8,674 | -8,406 |
| Buda | 9,584 | -9,316 |
| Edwards | 10,166 | -9,898 |
| Glen Rose | 10,664 | -10,396 |
| Glen RoseGLENROSE | 10,664 | -10,396 |
| PettitPETTET | — | — |
| Rodessa | — | — |
| Travis Peak | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 9,585 | 9,708 | Perforated |
| 10,189 | 10,514 | Perforated |
| 10,700 | 11,220 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 11.75 | 2,370 | 14.75 | 1,010 S |
| 8.625 | 6,104 | 11 | 295 S |
| 5.5 | 11,515 | 7.875 | 500 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 | Jan 28, 2015 | Oct 22, 2014 | Yes |
| 00 | Jan 27, 2015 | Oct 22, 2014 | — |
| 00 | Jan 23, 2015 | Oct 22, 2014 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Mar 3, 2017. Gamma ray. 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 |
|---|---|---|---|---|
| Gamma RaySpans Sub-Clarksville, Woodbine, Buda | TIFF | 6,086 to 9,632 | Mar 3, 2017 | 1.46 |
"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 42-225-31310 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-225-31310 → 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/22531310, documented in the API reference.