WELL · 42-021-31070 · DISTRICT 3
Barker Heirs #1 #2
Bastrop County · Serbin (Taylor Sand) field · Vertical
Barker Heirs #1 #2 (API 42-021-31070) is a well in Bastrop County operated by Texas Vanguard Oil Company, completed March 1, 1988.
The RRC has issued one drilling permit, issued August 5, 1987, permitted to 5,300 ft.
It was permitted by Sierra Minerals, Inc. and has since transferred to Texas Vanguard Oil Company on the wellbore schedule.
Completion filings report one formation top, including Taylor.
Its lease has reported 9.21K barrels of oil and 33.6K mcf of gas since January 1993, last reporting in July 2026.
Operator of record
Permitted by Sierra Minerals, Inc.; the EWA schedule now lists a different operator.
Austin, TX · P-5 Y, filed Aug 2, 2013 · 11 permits on file · (512) 331-6781
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Texas Vanguard Oil Company |
| Production reports | Trivista Operating LLCthrough Feb 2026 |
| Latest permit | Sierra Minerals, Inc.Aug 5, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,300
- total depth, ft
- 1
- permits on file
- Aug 5, 1987
- last permit issued
- Mar 1, 1988
- completed
- 9.21K
- cumulative oil, bbl
- 33.6K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 1, 1988
- 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 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 |
|---|---|---|---|---|---|---|
| Barker Heirs #2 O-3-20101 | Serbin (Taylor Sand) | Trivista Operating LLC | 1 | 9.21K | 33.6K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 142 · prior 12 189(-25%)
Gas, mcf lease total
Last 12 months 1 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Ernest Operating CompanyJan 1993 → Jan 1994
- 2Sierra Minerals, Inc.Feb 1994 → Jan 1996
- 3Texas Vanguard Oil CompanyFeb 1996 → Sep 2013
- 4Trivista Operating LLCOct 2013 → Feb 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 334021-99 | Drill | Sierra Minerals, Inc. | Aug 5, 1987 | Aug 5, 1987 | — | 5,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-3-20101 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 397 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| TaylorTAYLOR SD | 5,098 | -4,701 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,098 | 5,133 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 564 | 12.25 | 255 S |
| 4.5 | 5,210 | 7.875 | 985 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 | Jun 6, 1988 | Apr 4, 1988 | Yes |
| 00 | Jun 1, 1988 | — | — |
| 00 | May 5, 1988 | Apr 4, 1988 | Yes |
| 00 | Apr 29, 1988 | — | — |
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 42-021-31070 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-021-31070 → 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/02131070, documented in the API reference.