WELL · 42-507-33315 · DISTRICT 1

LLM South #2EF

Y

Zavala County · Briscoe Ranch (Eagleford) field · Producing  · Horizontal

Llm South #2EF (API 42-507-33315) is a horizontal well in Zavala County operated by U.S. Energy Development Corp, completed October 14, 2018 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued December 15, 2017, permitted to 9,000 ft.

Completion filings report 5 formation tops, including Escondido, Olmos, San Miguel, Austin Chalk.

Its lease has reported 1.78M barrels of oil and 2.73M mcf of gas since May 2017, last reporting in July 2026. The lease carries 7 wells, so these are lease totals, not this well alone.

Operator of record

U.S. Energy Development Corp

Fort Worth, TX · P-5 Y, filed Jan 5, 2026 · 225 permits on file · (800) 357-9165

SOURCE · RRC EWA WELLBORE SCHEDULE

9,000
total depth, ft
1
permits on file
Dec 15, 2017
last permit issued
Oct 14, 2018
completed
1.78M
cumulative oil, bbl
2.73M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2017 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 14, 2018
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

Surface location

28.862193, -99.449289

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Zavala 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; they carry 7 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
LLM South O-1-19132Briscoe Ranch (Eagleford)U.S. Energy Development Corp71.78M2.73MMay 2017 – Jul 2026

Oil, barrels lease total

Last 12 months 93,354 · prior 12 103,918(-10%)

05K10K15K202420252026

Gas, mcf lease total

Last 12 months 219,130 · prior 12 186,524(+17%)

020K40K202420252026

Chain of custody

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

  1. 1U.S. Energy Development CorpOct 2017 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
833940-99DrillU.S. Energy Development CorpDec 6, 2017Dec 15, 2017Feb 20, 20189,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-1-19132————

Formation tops

As filed on W-2/G-1. Subsea from 624 ft elevation.Download CSV →

FormationMD ftSubsea
EscondidoESCONDIDO - DISPOSAL2,783-2,159
Olmos3,759-3,135
San Miguel4,300-3,676
Austin Chalk4,987-4,363
Eagle Ford5,470-4,846

Perforations

Perforated and open-hole intervals.

FromToType
5,86617,057Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6252,61812.25780 S
5.517,2018.752,635 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, 2019Nov 9, 2018Yes

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.

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 →

LLM South B Unit42-507-33314

0.0 KM · U.S. Energy Development Corp · Section with this well →

Escondido2,802-2,178
Olmos3,784-3,160
San Miguel4,319-3,695
Austin Chalk5,017-4,393
Eagle Ford5,501-4,877

LLM South42-507-33289

0.6 KM · U.S. Energy Development Corp · Section with this well →

Escondido2,830-2,199
Austin Chalk5,073-4,442
Eagle Ford5,556-4,925

LLM South42-507-33312

0.6 KM · U.S. Energy Development Corp · Section with this well →

Escondido2,762-2,127
Olmos3,737-3,102
San Miguel4,290-3,655
Austin Chalk4,555-3,920
Eagle Ford4,965-4,330

LLM South42-507-33313

0.6 KM · U.S. Energy Development Corp · Section with this well →

Escondido2,753-2,118
Olmos3,725-3,090
San Miguel4,280-3,645
Austin Chalk4,932-4,297
Eagle Ford5,417-4,782

Sola Vaca Norte42-507-33355

1.3 KM · U.S. Energy Development Corp · Section with this well →

Escondido2,898-2,280
Olmos3,876-3,258
San Miguel4,437-3,819
Anacacho4,754-4,136
Austin Chalk5,160-4,542
Eagle Ford5,651-5,033

Sola Vaca Norte42-507-33356

1.3 KM · U.S. Energy Development Corp · Section with this well →

Escondido2,875-2,257
Olmos3,887-3,269
San Miguel4,441-3,823
Anacacho4,755-4,137
Austin Chalk5,162-4,544
Eagle Ford5,668-5,050

Sola Vaca Norte42-507-33310

2.2 KM · U.S. Energy Development Corp · Section with this well →

Escondido2,900-2,282
Olmos3,830-3,212
San Miguel4,428-3,810
Anacacho4,736-4,118
Austin Chalk5,150-4,532
Eagle Ford5,636-5,018

Sola Vaca Norte42-507-33309

2.2 KM · U.S. Energy Development Corp · Section with this well →

Escondido2,901-2,283
Olmos3,860-3,242
San Miguel4,420-3,802
Anacacho4,702-4,084
Austin Chalk5,112-4,494
Eagle Ford5,587-4,969

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/50733315, documented in the API reference.