WELL · 42-287-32005 · DISTRICT 3

Calvin Jr. #1

Y

Lee County · Serbin (Taylor Sand) field · Producing  · Vertical

Calvin JR. #1 (API 42-287-32005) is a well in Lee County operated by Trivista Operating LLC, completed January 27, 1987 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued December 15, 1986, permitted to 5,800 ft.

It was permitted by Maxwell Production CO., Inc. and has since transferred to Trivista Operating LLC on the wellbore schedule.

Completion filings report 4 formation tops, including Wilcox, Midway, Navarro, Taylor.

Its lease has reported 8.67K barrels of oil and 13.7K mcf of gas since January 1993, last reporting in July 2026.

Operator of record

Trivista Operating LLC

Permitted by Maxwell Production Co., Inc.; 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 scheduleTrivista Operating LLC
Production reportsTrivista Operating LLCthrough Dec 2025
Latest permitMaxwell Production Co., Inc.Dec 15, 1986

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

5,800
total depth, ft
1
permits on file
Dec 15, 1986
last permit issued
Jan 27, 1987
completed
8.67K
cumulative oil, bbl
13.7K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jan 27, 1987
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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Calvin, Jr. O-3-19519Serbin (Taylor Sand)Trivista Operating LLC18.67K13.7KJan 1993 – Jul 2026

Oil, barrels lease total

Last 12 months 42 · prior 12 110(-62%)

0102030202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1San Antonio Gas & Oil, Inc.Jan 1993 → Dec 1996
  2. 2C&M Equipment & Leasing Co., IncJan 1997 → Feb 2000
  3. 3Seay Oil & Gas, Ltd.Mar 2000 → Mar 2013
  4. 4Riley Exploration Opg Co, LLCAug 2013 → Jul 2017
  5. 5Trivista Operating LLCNov 2017 → Dec 2025

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
324330-99DrillMaxwell Production Co., Inc.Dec 15, 1986Dec 15, 1986—5,800

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-3-19519————

Formation tops

As filed on W-2/G-1. Subsea from 500 ft elevation.Download CSV →

FormationMD ftSubsea
Wilcox2,000-1,500
Midway4,400-3,900
Navarro4,904-4,404
Taylor5,428-4,928

Perforations

Perforated and open-hole intervals.

FromToType
5,5125,521Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62572312.25450 S
4.55,6987.8751,550 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 →

SuffixFiledW-2 / G-1 dateLogs referenced
00Feb 25, 1987Feb 12, 1987Yes
00Feb 21, 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.

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/28732005, documented in the API reference.