TEXAS · WELLS · WEBB COUNTY · API 42-479-45551 · DISTRICT 01
San Ambrosia a (SA4) #4019H
Webb County · Lorenzo (Austin Chalk) field · Shut In · Horizontal
San Ambrosia A (Sa4) #4019H (API 42-479-45551) is a horizontal well in Webb County operated by SM Energy Company, completed April 20, 2026 and listed as shut in on the RRC schedule, shut in April 1, 2026.
The RRC has issued one drilling permit, issued January 20, 2026, permitted to 5,416 ft.
Completion filings report 10 formation tops, including Escondido, Olmos, San Miguel, Anchondo.
No lease production has been reported under this well’s leases.
Operator of record
- Based in
- Midland, TX
- P-5 status
- Active (A)
- P-5 last filed
- Sep 3, 2025
- Permits on file
- 2,485
- Phone
- (303) 861-8140
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | SM Energy Company |
| Production reports | none |
| Latest permit | SM Energy CompanyJan 20, 2026 |
- 5,416
- total depth, ft
- 1
- permits on file
- Jan 20, 2026
- last permit issued
- Apr 20, 2026
- completed
- —
- cumulative oil, bbl
- —
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 20, 2026
- Shut in
- Apr 1, 2026
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (X)
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 |
|---|---|---|---|---|---|---|
| 912994-99 | Drill | SM Energy Company | Jan 19, 2026 | Jan 20, 2026 | Mar 18, 2026 | 6,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 20, 2026 | San Ambrosia a (SA4) G-1-302225 | Lorenzo (Austin Chalk) | SM Energy Company | Shut In · shut in Apr 1, 2026 | 5,416 |
Formation tops
As filed on W-2/G-1. Subsea from 584 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| EscondidoESCONDITO - INJECTION/DISPOSAL; | 1,158 | -574 |
| OlmosOLMOS - INJECTION/DISPOSAL | 2,385 | -1,801 |
| San Miguel | 3,669 | -3,085 |
| Anchondo | 4,813 | -4,229 |
| Cook Mountain | — | — |
| Eagle FordEAGLE FORD SHALE | — | — |
| JacksonJACKSON - INJECTION/DISPOSAL | — | — |
| Queen CityQUEEN CITY - INJECTION/DISPOSAL; | — | — |
| WilcoxWILCOX - INJECTION/DISPOSAL | — | — |
| YeguaYEGUA - INJECTION/DISPOSAL | — | — |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,125 | 12.25 | 266 S |
| 5.5 | 18,263 | 8.75 | 3,220 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 | Oct 12, 2026 | Sep 16, 2026 | Yes |
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 42-479-45551 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-45551 → 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/47945551, documented in the API reference.