TEXAS · WELLS · BASTROP COUNTY · MARKERT LEASE · API 42-021-31043 · DISTRICT 03
Markert #1
Bastrop County · Serbin (Taylor Sand) field · Shut In · Vertical
Markert #1 (API 42-021-31043) is a well in Bastrop County operated by Trivista Operating LLC, completed July 5, 1987 and listed as shut in on the RRC schedule, shut in August 1, 2025.
The RRC has issued one drilling permit, issued May 29, 1987, permitted to 5,250 ft.
It was permitted by Oversea Oil CO. and has since transferred to Trivista Operating LLC on the wellbore schedule.
Completion filings report one formation top, including Taylor.
Its lease has reported 8.36K barrels of oil and 98.3K mcf of gas since January 1993, last reporting volume in December 2025.
Operator of record
Permitted by Oversea Oil Co.; the EWA schedule now lists a different operator.
- Based in
- Giddings, TX
- P-5 status
- Delinquent (D)
- P-5 last filed
- Sep 30, 2025
- Permits on file
- 3
- Phone
- (979) 366-2700
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Trivista Operating LLC |
| Production reports | Trivista Operating LLCthrough Dec 2025 |
| Latest permit | Oversea Oil Co.May 29, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,250
- total depth, ft
- 1
- permits on file
- May 29, 1987
- last permit issued
- Jul 5, 1987
- completed
- 8.36K
- cumulative oil, bbl
- 98.3K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Dec 2025
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 5, 1987
- Shut in
- Aug 1, 2025
- Plugged
- —
Operator's P-5 on the schedule: Delinquent (D)
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 |
|---|---|---|---|---|---|---|
| Markert O-3-19691 | Serbin (Taylor Sand) | Trivista Operating LLC | 1 | 8.36K | 98.3K | Jan 1993 – Dec 2025 |
Oil, barrels lease total
Last 12 months 53 · prior 12 69(-23%)
Gas, mcf lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1San Antonio Gas & Oil, Inc.Jan 1993 → Jun 1995
- 2Texas Vanguard Oil CompanyJul 1995 → Sep 2013
- 3Trivista Operating LLCOct 2013 → Dec 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 330872-99 | Drill | Oversea Oil Co. | May 29, 1987 | May 29, 1987 | — | 5,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 5, 1987 | Markert O-3-19691 | Serbin (Taylor Sand) | Trivista Operating LLC | Shut In · shut in Aug 1, 2025 | 5,250 |
Formation tops
As filed on W-2/G-1. Subsea from 443 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| TaylorTAYLOR SAND | 5,102 | -4,659 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,108 | 5,138 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 560 | 12.25 | 165 S |
| 4.5 | 5,225 | 7.875 | 1,525 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 30, 1987 | Jul 16, 1987 | Yes |
| 00 | Jul 25, 1987 | — | — |
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 42-021-31043 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-021-31043 → 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/02131043, documented in the API reference.