TEXAS · WELLS · ZAVALA COUNTY · API 42-507-30988 · DISTRICT 01
Big Wells /San Miguel/ Unit #302
Zavala County · Big Wells (San Miguel) field · Vertical
Big Wells /San Miguel/ Unit #302 (API 42-507-30988) is a plugged well in Zavala County, plugged October 17, 1986, last operated by Flint Oak Energy LLC.
The RRC has issued 2 drilling permits between 1978 and 1985, permitted to 7,800 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 2 formation tops, including San Miguel, Austin Chalk.
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 | none |
| Latest permit | Sun Expl. & Prod. Co.-CorpusDec 16, 1985 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,800
- total depth, ft
- 2
- permits on file
- Dec 16, 1985
- last permit issued
- Jun 24, 1986
- completed
- —
- cumulative oil, bbl
- —
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jun 24, 1986
- Shut in
- —
- Plugged
- Oct 17, 1986
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.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 292849-99 | Recompletion | Sun Expl. & Prod. Co.-Corpus | Dec 5, 1985 | Dec 16, 1985 | — | 7,400 |
| 23732-99 | Drill | Sun Exploration & Production Co. | May 8, 1978 | May 8, 1978 | Jun 5, 1978 | 7,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 24, 1986 | Big Wells /San Miguel/ Unit O-1-4421 | Big Wells (San Miguel) | Flint Oak Energy LLC | Plugged | — |
| Dec 21, 1978 | Baggett John B. -A- O-1-5852 | Pearsall (Austin Chalk) | Sun Expl. & Prod. Co.-Corpus | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 639 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San Miguel | 5,436 | -4,797 |
| Austin Chalk | 6,494 | -5,855 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,436 | 5,452 | Perforated |
| 6,500 | 6,930 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 365 | 12.25 | 250 S |
| 2.875 | 6,564 | — | — |
| 5.5 | 7,385 | 7.875 | 1,080 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 | Jul 11, 1986 | Jun 27, 1986 | Yes |
| 00 | Jul 8, 1986 | — | — |
| 00 | Jan 12, 1984 | Jan 18, 1979 | — |
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 42-507-30988 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-30988 → 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/50730988, documented in the API reference.