WELL · 42-163-33002 · DISTRICT 1
Margarita #1A
Frio County · Pearsall (Austin Chalk) field · Horizontal
Margarita #1A (API 42-163-33002) is a plugged horizontal well in Frio County, plugged June 12, 2017, last operated by Express Oil And Gas.
The RRC has issued one drilling permit, issued February 8, 1991, permitted to 6,780 ft.
It was permitted by Inco Oil Corporation and has since transferred to Express Oil And Gas on the wellbore schedule.
Completion filings report one formation top, including Austin Chalk.
Its lease has reported 3.85K barrels of oil and 16 mcf of gas since January 1993, last reporting in July 2026.
Operator of record
Permitted by Inco Oil Corporation; the EWA schedule now lists a different operator.
LA Grange, TX · P-5 Y, filed Oct 5, 2018 · 1 permits on file · (979) 968-8684
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Express Oil and Gas |
| Production reports | Express Oil and Gasthrough Sep 2000 |
| Latest permit | Inco Oil CorporationFeb 8, 1991 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,780
- total depth, ft
- 1
- permits on file
- Feb 8, 1991
- last permit issued
- Feb 20, 1991
- completed
- 3.85K
- cumulative oil, bbl
- 16
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Feb 20, 1991
- Shut in
- —
- Plugged
- Jun 12, 2017
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Margarita O-1-12962 | Pearsall (Austin Chalk) | Express Oil and Gas | 1 | 3.85K | 16 | Jan 1993 – Jul 2026 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Clear Fork, IncorporatedJan 1993 → May 1993
- 2Unified Consulting, Inc.Jun 1993 → Jul 1993
- 3Kana Resources, Inc.Aug 1993 → Jun 1994
- 4Kana Investments, Inc.Apr 1995 → Apr 1995
- 5Nelms Bros. Oil Properties Inc.Jun 1996 → Jun 1996
- 6Vac-U-Lift Production Co.,inc.Jul 1996 → Nov 1999
- 7Express Oil and GasMay 2000 → Sep 2000
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 384447-99 | Drill | Inco Oil Corporation | Feb 8, 1991 | Feb 8, 1991 | Jan 30, 1991 | 6,780 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-12962 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 566 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 6,662 | -6,096 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,750 | — | Open hole |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 732 | 17.5 | 515 S |
| 7 | 6,363 | 9.875 | 300 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 | Apr 22, 1991 | Mar 26, 1991 | Yes |
| 00 | Apr 18, 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 42-163-33002 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-163-33002 → 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/16333002, documented in the API reference.