WELL · 42-427-33151 · DISTRICT 4

JMK #1 #1

Plugged

Starr County · Amore (Vicksburg 5950) field  · Vertical

Jmk #1 #1 (API 42-427-33151) is a plugged well in Starr County, plugged March 31, 2022, last operated by Marwell Petroleum Ltd Partnrship.

The RRC has issued one drilling permit, issued January 27, 1999, permitted to 5,800 ft.

It was permitted by Longhorn Development LLC and has since transferred to Marwell Petroleum Ltd Partnrship on the wellbore schedule.

Completion filings report 2 formation tops, including Frio, Vicksburg.

Operator of record

Marwell Petroleum Ltd Partnrship

Permitted by Longhorn Development LLC; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Nov 4, 2025 · 2 permits on file · (575) 725-0324

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleMarwell Petroleum Ltd Partnrship
Production reportsMarwell Petroleum Ltd Partnrshipthrough Mar 2011
Latest permitLonghorn Development LLCJan 27, 1999

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
Jan 27, 1999
last permit issued
May 19, 1999
completed
0
cumulative oil, bbl
364K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 1999 THROUGH Apr 2024

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
May 19, 1999
Shut in
—
Plugged
Mar 31, 2022

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
JMK #1 G-4-173247Amore (Vicksburg 5950)Marwell Petroleum Ltd Partnrship10364KMay 1999 – Apr 2024

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. 1Longhorn Development LLCMay 1999 → Jul 1999
  2. 2Star of Texas Energy Srvs, Inc.Aug 1999 → Jun 2004
  3. 3Marwell Petroleum, Inc.Jul 2004 → Apr 2006
  4. 4Marwell Petroleum Ltd PartnrshipMay 2006 → Mar 2011

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
482292-99DrillLonghorn Development LLCJan 27, 1999Jan 27, 1999Apr 28, 19995,800

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-4-173247————

Formation tops

As filed on W-2/G-1. Download CSV →

FormationMD ft
Frio4,320
Vicksburg5,280

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.62592312.25340 S
2.8755,7077.875136 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
00Jul 13, 1999Jun 4, 1999Yes
00Jun 25, 1999——

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/42733151, documented in the API reference.