TEXAS · WELLS · DIMMIT COUNTY · LA BANDERA RANCH UNIT B LEASE · API 42-127-36589 · DISTRICT 01
La Bandera Ranch Unit B #4H
Dimmit County · Briscoe Ranch (Eagleford) field · Producing · Horizontal
La Bandera Ranch Unit B #4H (API 42-127-36589) is a horizontal well in Dimmit County operated by Javelin Energy Partners Mgmt LLC, completed March 6, 2015 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued September 3, 2014, permitted to 6,369 ft.
It was permitted by Anadarko E&P Onshore LLC and has since transferred to Javelin Energy Partners Mgmt LLC on the wellbore schedule.
Completion filings report 11 formation tops, including Midway, Escondido, Olmos, San Miguel.
Its lease has reported 93K barrels of oil and 489K mcf of gas since January 2015, last reporting volume in April 2026.
Operator of record
Javelin Energy Partners Mgmt LLC
Permitted by Anadarko E&P Onshore LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Feb 24, 2026
- Permits on file
- 234
- Phone
- (469) 575-3800
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Javelin Energy Partners Mgmt LLC |
| Production reports | Javelin Energy Partners Mgmt LLCthrough Apr 2026 |
| Latest permit | Anadarko E&P Onshore LLCSep 3, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,369
- total depth, ft
- 1
- permits on file
- Sep 3, 2014
- last permit issued
- Mar 6, 2015
- completed
- 93K
- cumulative oil, bbl
- 489K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2015 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 6, 2015
- 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| La Bandera Ranch Unit B G-1-276835 | Briscoe Ranch (Eagleford) | Javelin Energy Partners Mgmt LLC | 1 | 93K | 489K | Jan 2015 – Apr 2026 |
Gas, mcf lease total
Last 12 months 14,932 · prior 12 11,603(+29%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Anadarko E&P Onshore LLCMar 2015 → Nov 2016
- 2SN EF Maverick, LLCMar 2017 → Aug 2023
- 3Javelin Energy Partners Mgmt LLCSep 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 793388-99 | Drill | Anadarko E&P Onshore LLC | Aug 5, 2014 | Sep 3, 2014 | Sep 10, 2014 | 7,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 6, 2015 | La Bandera Ranch Unit B G-1-276835 | Briscoe Ranch (Eagleford) | Javelin Energy Partners Mgmt LLC | Producing | 6,369 |
Formation tops
As filed on W-2/G-1. Subsea from 825 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 1,267 | -442 |
| EscondidoESCONDIDO - DISPOSAL | 1,621 | -796 |
| OlmosOLMOS - DISPOSAL | 2,637 | -1,812 |
| San MiguelSAN MIGUEL - H2S | 3,765 | -2,940 |
| Pecan Gap | 4,845 | -4,020 |
| Austin ChalkAUSTIN CHALK - H2S | 5,179 | -4,354 |
| Eagle FordEAGLE FORD - H2S | 5,934 | -5,109 |
| EdwardsEDWARDS - H2S | — | — |
| GeorgetownGEORGETOWN - H2S | — | — |
| Glen RoseGLEN ROSE - DISPOSAL | — | — |
| Pearsall | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,950 | 11,855 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 992 | 12.25 | 308 S |
| 5.5 | 11,950 | 8.5 | 2,306 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 | Oct 20, 2015 | Sep 16, 2015 | Yes |
| 00 | Jun 10, 2015 | Feb 24, 2015 | Yes |
Well logs
2 logs loaded from the RRC's log index, 2 of them with a digital LAS file, the latest received Mar 21, 2018. Gamma ray. 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 |
|---|---|---|---|---|
| Gamma RaySpans Austin Chalk, Eagle Ford | LAS + TIFF | 5,519 to 11,950 | Mar 21, 2018 | 0.79 + 2.51 |
| Gamma RaySpans Austin Chalk, Eagle Ford | LAS + TIFF | 5,519 to 11,950 | Jan 10, 2018 | 0.79 + 2.51 |
"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 42-127-36589 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-127-36589 → 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/12736589, documented in the API reference.