TEXAS · WELLS · ZAVALA COUNTY · API 42-507-32410 · DISTRICT 01
Big Wells (San Miguel) #4
Zavala County · Big Wells (San Miguel) field · Producing · Horizontal
Big Wells (San Miguel) #4 (API 42-507-32410) is a horizontal well in Zavala County operated by Flint Oak Energy LLC, completed April 1, 1997 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits between 1991 and 1997, permitted to 10,014 ft.
It was permitted by Oryx Energy Company and has since transferred to Flint Oak Energy LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Midway, San Miguel, Anacacho, Lower Chalk.
Its 2 leases have reported 59.7K barrels of oil and 818K mcf of gas since January 1993, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Oryx Energy Company; the EWA schedule now lists a different operator.
- Based in
- Montgomery, TX
- P-5 status
- Active (A)
- P-5 last filed
- Apr 15, 2026
- Permits on file
- 14
- Phone
- (713) 540-0619
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Flint Oak Energy LLC |
| Production reports | Flint Oak Energy, LLCthrough Apr 2026 |
| Latest permit | Oryx Energy CompanyMar 7, 1997 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 10,014
- total depth, ft
- 2
- permits on file
- Mar 7, 1997
- last permit issued
- Apr 1, 1997
- completed
- 59.7K
- cumulative oil, bbl
- 818K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 1, 1997
- 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 2 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 |
|---|---|---|---|---|---|---|
| Big Wells (San Miguel) G-1-162758 | Big Wells (San Miguel) | Flint Oak Energy, LLC | 1 | 0 | 709K | Apr 1997 – Jul 2026 |
| Baggett, John B. -A- O-1-13237 | Pearsall (Austin Chalk) | Oryx Energy Company | 2 | 59.7K | 109K | Jan 1993 – Jun 1997 |
Gas, mcf lease total
Last 12 months 14,179 · prior 12 14,914(-5%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Oryx Energy CompanyJan 1993 → Mar 1999
- 2Kerr-McGee CorporationApr 1999 → Sep 1999
- 3Kerr-McGee Oil & Gas Onshore LLCOct 1999 → Jan 2003
- 4Texas American Resources CompanyFeb 2003 → Jan 2018
- 5Trinity Operating (Usg), LLCMar 2018 → Sep 2021
- 6Flint Oak Energy, LLCOct 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 459357-99 | Recompletion | Oryx Energy Company | Mar 3, 1997 | Mar 7, 1997 | Mar 22, 1997 | 6,330 |
| 386992-99 | Drill | Oryx Energy Company | Apr 19, 1991 | Apr 19, 1991 | May 1, 1991 | 10,630 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 1, 1997 | Big Wells (San Miguel) G-1-162758 | Big Wells (San Miguel) | Flint Oak Energy LLC | Producing | 10,014 |
| Jun 8, 1991 | Baggett John B. -A- O-1-13237 | Pearsall (Austin Chalk) | Oryx Energy Company | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 675 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 2,930 | -2,255 |
| San Miguel | 5,415 | -4,740 |
| Anacacho | 6,015 | -5,340 |
| Lower Chalk | 6,645 | -5,970 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,390 | 5,396 | Perforated |
| 5,402 | 5,416 | Perforated |
| 6,392 | 10,014 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 790 | 17.5 | 500 S |
| 13.375 | 790 | 12.5 | 515 S |
| 9.625 | 6,392 | 12.25 | 680 S |
| 9.625 | 6,417 | 12.25 | 680 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 | Jul 7, 1997 | May 12, 1997 | Yes |
| 00 | May 12, 1997 | — | — |
| 00 | Sep 26, 1991 | Aug 29, 1991 | Yes |
| 00 | Sep 25, 1991 | — | — |
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 42-507-32410 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-32410 → 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/50732410, documented in the API reference.