TEXAS · WELLS · ROBERTSON COUNTY · COTROPIA-FERRARA UNIT LEASE · API 42-395-31323 · DISTRICT 03
Cotropia-Ferrara Unit #4
Robertson County · Giddings (Austin Chalk-3) field · Producing · Horizontal
Cotropia-Ferrara Unit #4 (API 42-395-31323) is a horizontal well in Robertson County operated by Wildfire Energy Operating LLC, completed January 16, 2008 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended twice), issued August 24, 2007, permitted to 6,046 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 3 formation tops, including Austin Chalk, Ash Marker, Eagle Ford.
Its lease has reported 1.79M barrels of oil and 1.07M mcf of gas since April 1997, last reporting in July 2026. The lease carries 5 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 Feb 2026 |
| Latest permit | Williams, Clayton Energy, Inc.Aug 24, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,046
- total depth, ft
- 3
- permits on file
- Aug 24, 2007
- last permit issued
- Jan 16, 2008
- completed
- 1.79M
- cumulative oil, bbl
- 1.07M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Apr 1997 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 16, 2008
- 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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cotropia-Ferrara Unit O-3-23238 | Giddings (Austin Chalk-3) | Wildfire Energy Operating LLC | 5 | 1.79M | 1.07M | Apr 1997 – Jul 2026 |
Oil, barrels lease total
Last 12 months 81,117 · prior 12 15,785(+414%)
Gas, mcf lease total
Last 12 months 49,968 · prior 12 28,118(+78%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Williams, Clayton Energy, Inc.Apr 1997 → Nov 2016
- 2Wildhorse Resources Mngt Co, LLCDec 2016 → May 2019
- 3Chesapeake Operating, L.L.C.Jun 2019 → Feb 2023
- 4Wildfire Energy Operating LLCMar 2023 → Feb 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 644562-97 | Drill | Williams, Clayton Energy, Inc. | Mar 5, 2008 | Aug 24, 2007 | Nov 1, 2007 | 6,046 |
| 644562-98 | Drill | Williams, Clayton Energy, Inc. | Aug 31, 2007 | Aug 24, 2007 | — | 6,100 |
| 644562-99 | Drill | Williams, Clayton Energy, Inc. | Aug 16, 2007 | Aug 24, 2007 | — | 6,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 16, 2008 | Cotropia-Ferrara Unit O-3-23238 | Giddings (Austin Chalk-3) | Wildfire Energy Operating LLC | Producing | 6,046 |
Formation tops
As filed on W-2/G-1. Subsea from 260 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 5,718 | -5,458 |
| Ash Marker | 5,873 | -5,613 |
| Eagle FordEAGLEFORD | 5,893 | -5,633 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,951 | 9,121 | Perforated |
| 5,951 | 11,547 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,005 | 12.25 | 420 S |
| 7 | 5,951 | 8.75 | 260 S |
| 7 | — | 8.75 | 350 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 | May 14, 2008 | Feb 8, 2008 | Yes |
| 00 | Apr 29, 2008 | — | — |
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 42-395-31323 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-395-31323 → 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/39531323, documented in the API reference.