TEXAS · WELLS · ZAVALA COUNTY · LLM SOUTH LEASE · API 42-507-33291 · DISTRICT 01
LLM South #A 3EF
Zavala County · Briscoe Ranch (Eagleford) field · Producing · Horizontal
Llm South #A 3EF (API 42-507-33291) is a horizontal well in Zavala County operated by U.S. Energy Development Corp, completed September 24, 2017 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued March 27, 2017, permitted to 5,406 ft.
Completion filings report 5 formation tops, including Carrizo, Escondido, Olmos, Eagle Ford.
Its lease has reported 1.78M barrels of oil and 2.73M mcf of gas since May 2017, last reporting volume in April 2026. The lease carries 7 wells, so these are lease totals, not this well alone.
Operator of record
- Based in
- Fort Worth, TX
- P-5 status
- Active (A)
- P-5 last filed
- Feb 18, 2026
- Permits on file
- 225
- Phone
- (682) 305-2868
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | U.S. Energy Development Corp |
| Production reports | U.S. Energy Development Corpthrough Apr 2026 |
| Latest permit | U.S. Energy Development CorpMar 27, 2017 |
- 5,406
- total depth, ft
- 1
- permits on file
- Mar 27, 2017
- last permit issued
- Sep 24, 2017
- completed
- 1.78M
- cumulative oil, bbl
- 2.73M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2017 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Sep 24, 2017
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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; they carry 7 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| LLM South O-1-19132 | Briscoe Ranch (Eagleford) | U.S. Energy Development Corp | 7 | 1.78M | 2.73M | May 2017 – Apr 2026 |
Oil, barrels lease total
Last 12 months 93,354 · prior 12 103,918(-10%)
Gas, mcf lease total
Last 12 months 219,130 · prior 12 186,524(+17%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1U.S. Energy Development CorpOct 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 824519-99 | Drill | U.S. Energy Development Corp | Mar 15, 2017 | Mar 27, 2017 | Apr 25, 2017 | 9,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 24, 2017 | LLM South O-1-19132 | Briscoe Ranch (Eagleford) | U.S. Energy Development Corp | Producing | 5,406 |
Formation tops
As filed on W-2/G-1. Subsea from 631 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Carrizo | 1,343 | -712 |
| EscondidoESCONDIDO - DISPOSAL | 2,812 | -2,181 |
| Olmos | 3,790 | -3,159 |
| Eagle FordEAGLEFORD | 5,513 | -4,882 |
| Eaglford | 5,513 | -4,882 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,035 | 12,951 | Perforated |
| 5,935 | 12,951 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 20 | 80 | 26 | 345 S |
| 9.625 | 2,735 | 12.25 | 900 S |
| 5.5 | 13,080 | 8.75 | 2,750 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Nov 1, 2018 | Apr 19, 2018 | Yes |
| 00 | Apr 10, 2018 | Oct 3, 2017 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Apr 24, 2020. Cement bond. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| Cement BondSpans Carrizo, Escondido, Olmos, Eaglford, Eagle Ford | TIFF | 900 to 5,808 | Apr 24, 2020 | 4.20 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-507-33291 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-507-33291 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/50733291, documented in the API reference.