WELL · 42-409-33136 · DISTRICT 4

Roots-Havelka #1H

San Patricio County · Plymouth East field · Shut IN · Horizontal

Roots-Havelka #1H (API 42-409-33136) is a horizontal well in San Patricio County operated by Welderxp Ltd., completed October 25, 2022 and listed as shut in on the RRC schedule.

The RRC has issued one drilling permit, issued September 22, 2022, permitted to 5,000 ft.

It was permitted by Jura Energy Operating LLC and has since transferred to Welderxp Ltd. on the wellbore schedule.

Completion filings report 3 formation tops, including Miocene (undifferentiated), Catahoula, Vicksburg.

Its lease has reported 445 barrels of oil since October 2022, last reporting in July 2026.

Operator of record

Welderxp Ltd.

Permitted by Jura Energy Operating LLC; the EWA schedule now lists a different operator.

San Antonio, TX · P-5 Y, filed Nov 4, 2025 · 14 permits on file · (210) 601-1249

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Welderxp Ltd.
Production reports	Jura Energy Operating LLCthrough Nov 2022
Latest permit	Jura Energy Operating LLCSep 22, 2022

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

5,000: total depth, ft
1: permits on file
Sep 22, 2022: last permit issued
Oct 25, 2022: completed
445: cumulative oil, bbl
0: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2022 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Oct 25, 2022
Shut in: —
Plugged: —

Operator's P-5 on the schedule: Active

Surface location

28.057666, -97.349539

OpenStreetMap → · Google Maps →

Permit surface location from the RRC GIS record, in San Patricio County.

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 →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Roots-Havelka O-4-14211	Plymouth, East	Welderxp Ltd.	1	445	0	Oct 2022 – 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.

1Jura Energy Operating LLCNov 2022 → Nov 2022

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
883762-99	Drill	Jura Energy Operating LLC	Sep 7, 2022	Sep 22, 2022	Oct 2, 2022	5,000

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-4-14211	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 39 ft elevation.Download CSV →

Formation	MD ft	Subsea
Miocene (undifferentiated)MIOCENE-LAGARTO-OAKVILLE - INJEC	3,854	-3,815
CatahoulaCATAHOULA-ANAHUAC - INJECTION/DI	4,485	-4,446
CatahoulaCATAHOULA-FRIO - INJECTION/DISPO	4,822	-4,783
Vicksburg	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
5,476	8,745	Open hole

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
9.625	989	12.25	495 S
7	5,476	8.75	615 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 →

Suffix	Filed	W-2 / G-1 date	Logs referenced
00	Jun 27, 2023	May 13, 2023	Yes

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.

Wellbore filings for 42-409-33136 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-409-33136 → scanned completion filings

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). then paste it into their search.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Mauch-Roots Unit42-409-33089

0.2 KM · Welder Exploration & Prod., Inc. · Section with this well →

Miocene (undifferentiated)	2,050	-2,010
Catahoula	4,000	-3,960
Catahoula	4,350	-4,310
Vicksburg	5,500	-5,460

Angeline42-409-33080

0.3 KM · Welder Exploration & Prod., Inc. · Section with this well →

Miocene (undifferentiated)	2,100	-2,060
Catahoula	3,950	-3,910
Catahoula	4,550	-4,510
Vicksburg	—

Mauch-Angeline Unit A42-409-33083

0.3 KM · Welder Exploration & Prod., Inc. · Section with this well →

Miocene (undifferentiated)	2,080	-2,038
Catahoula	4,000	-3,958
Catahoula	4,500	-4,458
Vicksburg	—

Mauch42-409-33075

0.5 KM · Welder Exploration & Prod., Inc. · Section with this well →

Miocene (undifferentiated)	2,070	-2,032
Catahoula	3,900	-3,862
Catahoula	4,500	-4,462
Vicksburg	—

Mauch-Angeline Unit B42-409-33084

0.7 KM · Welder Exploration & Prod., Inc. · Section with this well →

Miocene (undifferentiated)	2,130	-2,090
Catahoula	3,950	-3,910
Catahoula	4,500	-4,460
Vicksburg	—

Mauch42-409-33074

0.8 KM · Welder Exploration & Prod., Inc. · Section with this well →

Miocene (undifferentiated)	2,000	-1,959
Catahoula	3,930	-3,889
Catahoula	4,700	-4,659
Vicksburg	—

Brown-Mauch Unit42-409-33082

1.1 KM · Welder Exploration & Prod., Inc. · Section with this well →

Miocene (undifferentiated)	2,000	-1,960
Catahoula	4,300	-4,260
Vicksburg	—
Catahoula	—

Reynolds42-409-33129

1.2 KM · Welder Exploration & Prod., Inc. · Section with this well →

Miocene (undifferentiated)	2,150	-2,115
Catahoula	4,000	-3,965
Catahoula	4,800	-4,765
Vicksburg	—

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/40933136, documented in the API reference.