WELL · 42-029-38184 · DISTRICT 1

Malven Chas. W. #5AT

N

Bexar County · Somerset field  · Vertical

Malven Chas. W. #5AT (API 42-029-38184) is a well in Bexar County operated by Petrosaurus Inc., completed March 17, 1993.

The RRC has issued one drilling permit, issued December 9, 1992, permitted to 1,900 ft.

It was permitted by Devon Energy Corporation(Nevada) and has since transferred to Petrosaurus Inc. on the wellbore schedule.

Completion filings report 2 formation tops, including Escondido, Anacacho.

Its 2 leases have reported 20.8K barrels of oil and 21 mcf of gas since January 1993, last reporting in July 2026. The leases carry 8 wells, so these are lease totals, not this well alone.

Operator of record

Petrosaurus Inc.

Permitted by Devon Energy Corporation(nevada); 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 reportsDrachen Oil Companythrough Apr 2026
Latest permitDevon Energy Corporation(nevada)Dec 9, 1992

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

1,900
total depth, ft
1
permits on file
Dec 9, 1992
last permit issued
Mar 17, 1993
completed
20.8K
cumulative oil, bbl
21
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Mar 17, 1993
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 2 leases this well is completed on; they carry 8 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Malven, Chas. W. O-1-3251SomersetPetrosaurus, Inc.520.2K21Jan 1993 – Jul 2026
Herbert, Donald O-1-21286SomersetDrachen Oil Company36480Feb 2023 – Jul 2026

Oil, barrels lease total

Last 12 months 355 · prior 12 293(+21%)

050100202420252026

Chain of custody

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

  1. 1Devon Energy Corporation(nevada)Jan 1993 → Sep 1993
  2. 2Caspen Operating CompanyOct 1993 → Jan 1995
  3. 3Aminex USA, Inc.Feb 1995 → Aug 2013
  4. 4Petrosaurus, Inc.Sep 2013 → Aug 2021
  5. 5Drachen Oil CompanyMay 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
406387-99DrillDevon Energy Corporation(nevada)Nov 20, 1992Dec 9, 1992Dec 11, 19921,900

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-3251————
—— O-1-21286————

Formation tops

As filed on W-2/G-1. Subsea from 564 ft elevation.Download CSV →

FormationMD ftSubsea
Escondido795-231
AnacachoANACACHO MARL1,178-614
AnacachoANACACHO LIMB1,325-761

Perforations

Perforated and open-hole intervals.

FromToType
1,3421,363Perforated
1,4081,415Perforated
1,4381,446Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
4.51,5287.875200 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
00Mar 21, 2024Aug 16, 1993Yes
00Oct 6, 1993Aug 16, 1993Yes
00Aug 19, 1993——

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/02938184, documented in the API reference.