WELL · 42-013-33732 · DISTRICT 1

Briscoe -B- #4

Plugged

Atascosa County · Somerset field  · Vertical

Briscoe -B- #4 (API 42-013-33732) is a plugged well in Atascosa County, plugged October 13, 2023, last operated by Petrosaurus Inc..

The RRC has issued one drilling permit, issued February 14, 1986, permitted to 2,000 ft.

It was permitted by El Dorado Oil & Gas Inc. and has since transferred to Petrosaurus Inc. on the wellbore schedule.

Completion filings report 2 formation tops, including Lit, Olmos.

Its lease has reported 5.27K barrels of oil and 19 mcf of gas since January 1993, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.

Operator of record

Petrosaurus Inc.

Permitted by EL Dorado Oil & Gas Inc.; the EWA schedule now lists a different operator.

Somerset, TX · P-5 Y, filed May 4, 2026 · (210) 336-6355

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedulePetrosaurus Inc.
Production reportsPetrosaurus, Inc.through Aug 2021
Latest permitEL Dorado Oil & Gas Inc.Feb 14, 1986

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

2,000
total depth, ft
1
permits on file
Feb 14, 1986
last permit issued
Feb 28, 1986
completed
5.27K
cumulative oil, bbl
19
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Feb 28, 1986
Shut in
—
Plugged
Oct 13, 2023

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 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Briscoe -B- O-1-11362SomersetPetrosaurus, Inc.45.27K19Jan 1993 – Jul 2026

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.

  1. 1Caspen Operating CompanyJan 1993 → Jul 1993
  2. 2Aminex USA, Inc.Oct 1993 → Sep 2011
  3. 3Petrosaurus, Inc.Oct 2011 → Aug 2021

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
297810-99DrillEL Dorado Oil & Gas Inc.Feb 14, 1986Feb 14, 1986—2,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-11362————

Formation tops

As filed on W-2/G-1. Download CSV →

FormationMD ft
Lit1,636
Olmos1,647

Perforations

Perforated and open-hole intervals.

FromToType
1,6441,654Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
4.51,7956.75228 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
00Jan 2, 1987Dec 15, 1986Yes
00Dec 30, 1986——

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/01333732, documented in the API reference.