WELL · 42-039-31557 · DISTRICT 3
Martin, Isabel B. #1
Brazoria County · Vertical
Martin, Isabel B. #1 (API 42-039-31557) is a permitted well in Brazoria County filed by Tristar Exploration, Inc; no completion report is on file yet.
The RRC has issued 6 drilling permits between 1980 and 2002, permitted to 10,525 ft.
Its 4 leases have reported 587 barrels of oil since January 1993, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Pflugerville, TX
- P-5 status
- Delinquent (D)
- P-5 last filed
- Aug 5, 2010
- Permits on file
- 33
- Phone
- (512) 670-9210
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | Cavalier Oil & Gas, Inc.through Dec 1999 |
| Latest permit | Tristar Exploration, IncJan 28, 2002 |
- 10,525
- total depth, ft
- 6
- permits on file
- Jan 28, 2002
- last permit issued
- —
- completed
- 587
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- Shut in
- —
- Plugged
- —
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 4 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Isabel B. Martin Unit O-3-23728 | Chenango (8700) | Tristar Exploration, Inc | 1 | 587 | 0 | Aug 1999 – Jul 2026 |
| Martin, Isabel B. Unit G-3-138871 | Chenango (8100 Frio) | Cavalier Oil & Gas, Inc. | 1 | 0 | 0 | Jan 1993 – Aug 1999 |
| — G-3-91538 | — | — | 0 | 0 | 0 | — |
| — O-3-13508 | — | — | 0 | 0 | 0 | — |
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.
- 1Howard Exploration, Inc.Aug 1999 → Oct 1999
- 2Cavalier Oil & Gas, Inc.Nov 1999 → Dec 1999
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 517058-99 | Recompletion | Tristar Exploration, Inc | Jan 24, 2002 | Jan 28, 2002 | — | 6,500 |
| 481958-99 | Recompletion | Howard Exploration, Inc. | Jan 8, 1999 | Feb 3, 1999 | — | 8,900 |
| 467166-99 | Recompletion | Howard Exploration, Inc. | Sep 4, 1997 | Oct 1, 1997 | Aug 13, 1999 | 10,515 |
| 389874-99 | Recompletion | Denovo Oil & Gas, Inc. | Jul 15, 1991 | Jul 19, 1991 | Jun 5, 1991 | 9,386 |
| 332222-99 | Recompletion | Denovo Oil & Gas, Inc. | Jun 29, 1987 | Jul 29, 1987 | — | 9,386 |
| 85234-99 | Drill | Goldking Prod. Co. | Jun 13, 1980 | Jun 13, 1980 | Sep 3, 1980 | 10,525 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-3-91538 | — | — | — | — |
| — | — G-3-138871 | — | — | — | — |
| — | — O-3-13508 | — | — | — | — |
| — | — O-3-23728 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,055 | 8,062 | Perforated |
| 8,722 | 8,726 | Perforated |
| 9,500 | 9,507 | Perforated |
| 9,971 | 9,981 | Perforated |
| — | 9,507 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 10.75 | 1,554 | 15 | 950 S |
| 2.375 | 9,472 | — | — |
| 2.375 | 9,612 | — | — |
| 7 | 10,209 | 8.5 | 1,480 S |
| 7 | 10,209 | 8.75 | 1,480 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 | Nov 19, 1999 | Aug 31, 1999 | Yes |
| 00 | Oct 27, 1999 | — | — |
| 00 | Aug 16, 1991 | Aug 1, 1991 | Yes |
| 00 | Aug 7, 1991 | — | — |
| 00 | Jan 12, 1984 | Dec 31, 1980 | — |
| 00 | Jan 12, 1984 | Nov 18, 1980 | — |
| 00 | Jan 12, 1984 | — | — |
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 42-039-31557 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-039-31557 → 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/03931557, documented in the API reference.