WELL · 42-323-31338 · DISTRICT 1

Simpson #1

Plugged

Maverick County · Los Cuatros (Lower Cretaceous) field  · Vertical

Simpson #1 (API 42-323-31338) is a plugged well in Maverick County, plugged March 3, 2004, last operated by Janco Operating.

The RRC has issued 2 drilling permits between 1979 and 1989, permitted to 7,800 ft.

Completion filings report 6 formation tops, including Buda, Del Rio, Edwards, Pearsall.

Operator of record

Janco Operating

Raymondville, TX · P-5 Y, filed Nov 4, 2025 · 22 permits on file

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleJanco Operating
Production reportsnone
Latest permitJanco OperatingJun 12, 1989
7,800
total depth, ft
2
permits on file
Jun 12, 1989
last permit issued
Oct 31, 1989
completed
0
cumulative oil, bbl
0
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Feb 2004

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Oct 31, 1989
Shut in
—
Plugged
Mar 3, 2004

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
Simpson G-1-134275Los Cuatros (Lower Cretaceous)Janco Operating100Jan 1993 – Feb 2004

No volumes reported on these leases in the last three years.

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
359876-99OtherJanco OperatingMay 30, 1989Jun 12, 1989—7,800
42511-99DrillMachii-Ross Petroleum Co.Feb 14, 1979Feb 14, 1979—7,800

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-1-134275————

Formation tops

As filed on W-2/G-1. Subsea from 838 ft elevation.Download CSV →

FormationMD ftSubsea
Buda2,845-2,007
Del Rio2,990-2,152
Edwards4,040-3,202
Pearsall6,670-5,832
James LimeJAMES6,985-6,147
Sligo7,205-6,367

Perforations

Perforated and open-hole intervals.

FromToType
6,2007,570Perforated
6,2707,330Open hole

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,09912.25—
76,2008.75500 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
00May 28, 1991Apr 27, 1990—
00Aug 4, 1990——
00Jan 12, 1984Jun 10, 1980—

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/32331338, documented in the API reference.