TEXAS · WELLS · BURLESON COUNTY · ONDRASEK OL UNIT LEASE · API 42-051-33687 · DISTRICT 03
Ondrasek OL Unit #2
Burleson County · Giddings (Austin Chalk-3) field · Producing · Horizontal
Ondrasek OL Unit #2 (API 42-051-33687) is a horizontal well in Burleson County operated by Wildfire Energy Operating LLC, completed April 11, 2011 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued February 2, 2011, permitted to 7,549 ft.
It was permitted by Williams, Clayton Energy, Inc. and has since transferred to Wildfire Energy Operating LLC on the wellbore schedule.
Completion filings report one formation top, including Austin Chalk.
Its lease has reported 175K barrels of oil and 1.55K mcf of gas since April 2011, last reporting volume in March 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Williams, Clayton Energy, Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Nov 24, 2025
- Permits on file
- 171
- Phone
- (832) 558-0100
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Wildfire Energy Operating LLC |
| Production reports | Wildfire Energy Operating LLCthrough Mar 2026 |
| Latest permit | Williams, Clayton Energy, Inc.Feb 2, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,549
- total depth, ft
- 2
- permits on file
- Feb 2, 2011
- last permit issued
- Apr 11, 2011
- completed
- 175K
- cumulative oil, bbl
- 1.55K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 2011 THROUGH Mar 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 11, 2011
- 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; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Ondrasek OL Unit O-3-25728 | Giddings (Austin Chalk-3) | Wildfire Energy Operating LLC | 2 | 175K | 1.55K | Apr 2011 – Mar 2026 |
Oil, barrels lease total
Last 12 months 6,094 · prior 12 7,410(-18%)
Gas, mcf lease total
Last 12 months 411 · prior 12 429(-4%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Williams, Clayton Energy, Inc.Apr 2011 → Nov 2016
- 2Wildhorse Resources Mngt Co, LLCDec 2016 → May 2019
- 3Chesapeake Operating, L.L.C.Jun 2019 → Feb 2023
- 4Wildfire Energy Operating LLCMar 2023 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 709486-98 | Drill | Williams, Clayton Energy, Inc. | Aug 17, 2011 | Feb 2, 2011 | Feb 10, 2011 | 7,600 |
| 709486-99 | Drill | Williams, Clayton Energy, Inc. | Jan 31, 2011 | Feb 2, 2011 | Feb 10, 2011 | 7,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 11, 2011 | Ondrasek OL Unit O-3-25728 | Giddings (Austin Chalk-3) | Wildfire Energy Operating LLC | Producing | 7,549 |
Formation tops
As filed on W-2/G-1. Subsea from 356 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 6,695 | -6,339 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,795 | 9,625 | Open hole |
| 6,795 | 10,197 | Open hole |
| 6,795 | 10,222 | Open hole |
| 6,795 | 11,078 | Open hole |
| 6,795 | 12,642 | Open hole |
| 7,298 | 12,855 | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,022 | 12.25 | 418 S |
| 7 | 3,695 | 8.75 | 577 S |
| 7 | 7,298 | 8.75 | 176 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 20, 2012 | Aug 17, 2011 | Yes |
Well logs
6 logs loaded from the RRC's log index, the latest received Mar 13, 2014. 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 |
|---|---|---|---|---|
| RESISTIVITYSpans Austin Chalk | TIFF | 6,757 to 12,642 | Mar 13, 2014run Mar 18, 2011 | 0.52 |
| RESISTIVITYSpans Austin Chalk | TIFF | 6,757 to 11,078 | Mar 13, 2014run Mar 15, 2011 | 0.42 |
| RESISTIVITYSpans Austin Chalk | TIFF | 6,757 to 10,222 | Mar 13, 2014run Mar 12, 2011 | 0.36 |
| RESISTIVITYSpans Austin Chalk | TIFF | 6,757 to 10,197 | Mar 13, 2014run Mar 11, 2011 | 0.35 |
| RESISTIVITYSpans Austin Chalk | TIFF | 6,757 to 9,626 | Mar 13, 2014run Mar 9, 2011 | 0.31 |
| RESISTIVITYSpans Austin Chalk | TIFF | 6,757 to 12,855 | Mar 13, 2014run Feb 28, 2011 | 0.55 |
"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 42-051-33687 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-051-33687 → 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/05133687, documented in the API reference.