WELL · 42-021-31128 · DISTRICT 3
Horn #1
Bastrop County · Serbin (Taylor Sand) field · Producing · Vertical
Horn #1 (API 42-021-31128) is a well in Bastrop County operated by Trivista Operating LLC, completed January 8, 1988 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued November 30, 1987, permitted to 5,500 ft.
It was permitted by Magna Oil Corporation and has since transferred to Trivista Operating LLC on the wellbore schedule.
Completion filings report 2 formation tops, including Navarro, Taylor.
Its lease has reported 24.3K barrels of oil and 160K mcf of gas since January 1993, last reporting in July 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Magna Oil Corporation; the EWA schedule now lists a different operator.
Giddings, TX · P-5 Y, filed Jul 4, 2026 · 3 permits on file · (979) 540-7335
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Trivista Operating LLC |
| Production reports | Trivista Operating LLCthrough Jan 2026 |
| Latest permit | Magna Oil CorporationNov 30, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,500
- total depth, ft
- 1
- permits on file
- Nov 30, 1987
- last permit issued
- Jan 8, 1988
- completed
- 24.3K
- cumulative oil, bbl
- 160K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 8, 1988
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: H
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; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Horn O-3-19971 | Serbin (Taylor Sand) | Trivista Operating LLC | 2 | 24.3K | 160K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 22 · prior 12 27(-19%)
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.
- 1Vanguard Resources, Inc.Jan 1993 → Oct 1994
- 2Stanton Mineral Dev. Group, Inc.Nov 1994 → May 1995
- 3Stanton Mineral Development IncJun 1995 → Sep 1999
- 4Texas Vanguard Oil CompanyOct 1999 → Sep 2013
- 5Trivista Operating LLCOct 2013 → Jan 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 339380-99 | Drill | Magna Oil Corporation | Nov 25, 1987 | Nov 30, 1987 | — | 5,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-3-19971 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 470 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,294 | 5,328 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 559 | 12.25 | 120 S |
| 4.5 | 5,464 | 7.875 | 1,150 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 | Feb 25, 1988 | Jan 19, 1988 | Yes |
| 00 | Feb 12, 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 42-021-31128 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-021-31128 → 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/02131128, documented in the API reference.