TEXAS · WELLS · ZAVALA COUNTY · BIG WELLS /SAN MIGUEL/ UNIT LEASE · API 42-507-30476 · DISTRICT 01
Big Wells /San Miguel/ Unit #607
Zavala County · Big Wells (San Miguel) field · Vertical
Big Wells /San Miguel/ Unit #607 (API 42-507-30476) is a plugged well in Zavala County, plugged September 24, 1993, last operated by Flint Oak Energy LLC.
The RRC has issued one drilling permit, issued January 31, 1985, permitted to 7,405 ft.
It was permitted by Sun Expl. & Prod. CO.-Corpus and has since transferred to Flint Oak Energy LLC on the wellbore schedule.
Completion filings report one formation top, including Austin Chalk.
Its lease has reported 3.1M barrels of oil and 998K mcf of gas since January 1993, last reporting volume in April 2026. The lease carries 337 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Sun Expl. & Prod. Co.-Corpus; 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 | Sun Expl. & Prod. Co.-CorpusJan 31, 1985 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,405
- total depth, ft
- 1
- permits on file
- Jan 31, 1985
- last permit issued
- Apr 15, 1985
- completed
- 3.1M
- cumulative oil, bbl
- 998K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 15, 1985
- Shut in
- —
- Plugged
- Sep 24, 1993
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 337 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Big Wells /San Miguel/ Unit O-1-4421 | Big Wells (San Miguel) | Flint Oak Energy, LLC | 337 | 3.1M | 998K | Jan 1993 – Apr 2026 |
Oil, barrels lease total
Last 12 months 16,968 · prior 12 19,532(-13%)
Gas, mcf lease total
Last 12 months 31 · prior 12 158(-80%)
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), LLCFeb 2018 → Sep 2021
- 6Flint Oak Energy, LLCOct 2021 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 265730-99 | Recompletion | Sun Expl. & Prod. Co.-Corpus | Jan 31, 1985 | Jan 31, 1985 | — | 7,405 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 15, 1985 | Big Wells /San Miguel/ Unit O-1-4421 | Big Wells (San Miguel) | Flint Oak Energy LLC | Plugged | — |
| Jul 10, 1977 | Baggett Jeff O-1-5414 | Pearsall (Austin Chalk) | Flint Oak Energy LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 665 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 6,781 | -6,116 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,470 | 5,492 | Perforated |
| 6,794 | 6,954 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 2,438 | 12.25 | 810 S |
| 8.625 | 2,438 | — | 810 S |
| 4.5 | 7,404 | 7.875 | 1,200 S |
| 4.5 | 7,404 | — | 1,200 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 | May 16, 1985 | May 6, 1985 | — |
| 00 | May 14, 1985 | — | — |
| 00 | Jan 12, 1984 | Aug 1, 1977 | — |
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 42-507-30476 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-30476 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/50730476, documented in the API reference.