WELL · 42-127-37909 · DISTRICT 1
Stumberg Ranch Unit E #01ER
Dimmit County · Briscoe Ranch (Eagleford) field · Producing · Horizontal
Stumberg Ranch Unit E #01ER (API 42-127-37909) is a horizontal well in Dimmit County operated by Javelin Energy Partners Mgmt LLC, completed December 7, 2018 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued June 11, 2018, permitted to 8,000 ft.
It was permitted by SN EF Maverick, LLC and has since transferred to Javelin Energy Partners Mgmt LLC on the wellbore schedule.
Completion filings report 9 formation tops, including Escondido, Olmos, San Miguel, Austin Chalk.
No lease production has been reported under this well’s leases.
Operator of record
Javelin Energy Partners Mgmt LLC
Permitted by SN EF Maverick, LLC; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Jan 4, 2026 · 233 permits on file · (888) 973-7780
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 | SN EF Maverick, LLCJun 11, 2018 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,000
- total depth, ft
- 2
- permits on file
- Jun 11, 2018
- last permit issued
- Dec 7, 2018
- completed
- 0
- cumulative oil, bbl
- 604K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 7, 2018
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
28.359097, -99.713294
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Dimmit 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 |
|---|---|---|---|---|---|---|
| Stumberg Ranch Unit E G-1-287255 | Briscoe Ranch (Eagleford) | Javelin Energy Partners Mgmt LLC | 1 | 0 | 604K | Dec 2018 – Jul 2026 |
Gas, mcf lease total
Last 12 months 7,248 · prior 12 8,375(-13%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1SN EF Maverick, LLCDec 2018 → Aug 2023
- 2Javelin Energy Partners Mgmt LLCSep 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 841049-98 | Drill | SN EF Maverick, LLC | Jun 14, 2018 | Jun 11, 2018 | Jun 25, 2018 | 8,000 |
| 841049-99 | Drill | SN EF Maverick, LLC | Jun 11, 2018 | Jun 11, 2018 | — | 8,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-1-287255 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 592 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| EscondidoESCONDIDO - DISPOSAL | 3,146 | -2,554 |
| OlmosOLMOS - DISPOSAL | 4,549 | -3,957 |
| San MiguelSAN MIGUEL - H2S | 5,727 | -5,135 |
| Austin ChalkAUSTIN CHALK - H2S | 6,801 | -6,209 |
| Eagle FordEAGLE FORD - H2S | 7,366 | -6,774 |
| EdwardsEDWARDS - H2S | — | — |
| GeorgetownGEORGETOWN - H2S | — | — |
| Glen RoseGLEN ROSE - DISPOSAL | — | — |
| Pearsall | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,467 | 18,029 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,655 | 12.25 | 560 S |
| 5.5 | 18,122 | 8.75 | 3,880 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 | Oct 17, 2019 | Jul 1, 2019 | 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 42-127-37909 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-127-37909 → 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.
Stumberg Ranch Unit E42-127-37641
0.0 KM · SN EF Maverick, LLC · Section with this well →
| Escondido | 3,151 | -2,561 |
| Olmos | 4,558 | -3,968 |
| San Miguel | 5,733 | -5,143 |
| Anacacho | 6,414 | -5,824 |
| Austin Chalk | 6,808 | -6,218 |
| Eagle Ford | 7,369 | -6,779 |
| Edwards | — | |
| Pearsall | — |
10 TOPS · FIRST 8
Stumberg Ranch Unit E42-127-37650
0.0 KM · SN EF Maverick, LLC · Section with this well →
| Escondido | 3,158 | -2,568 |
| Olmos | 4,550 | -3,960 |
| San Miguel | 5,730 | -5,140 |
| Anacacho | 6,405 | -5,815 |
| Austin Chalk | 6,800 | -6,210 |
| Eagle Ford | 7,354 | -6,764 |
| Georgetown | — | |
| Pearsall | — |
10 TOPS · FIRST 8
Stumberg Ranch Unit E42-127-37643
0.0 KM · SN EF Maverick, LLC · Section with this well →
| Escondido | 3,150 | -2,560 |
| Olmos | 4,546 | -3,956 |
| San Miguel | 5,718 | -5,128 |
| Anacacho | 6,398 | -5,808 |
| Austin Chalk | 6,794 | -6,204 |
| Eagle Ford | 7,354 | -6,764 |
| Edwards | — | |
| Pearsall | — |
10 TOPS · FIRST 8
Stumberg Ranch Unit E42-127-37644
0.0 KM · SN EF Maverick, LLC · Section with this well →
| Escondido | 3,141 | -2,551 |
| Olmos | 4,547 | -3,957 |
| San Miguel | 5,725 | -5,135 |
| Anacacho | 6,400 | -5,810 |
| Austin Chalk | 6,791 | -6,201 |
| Eagle Ford | 7,349 | -6,759 |
| Pearsall | — | |
| Georgetown | — |
10 TOPS · FIRST 8
Stumberg Ranch Unit E42-127-37645
0.0 KM · SN EF Maverick, LLC · Section with this well →
| Escondido | 3,146 | -2,556 |
| Olmos | 4,546 | -3,956 |
| San Miguel | 5,713 | -5,123 |
| Anacacho | 6,391 | -5,801 |
| Austin Chalk | 6,783 | -6,193 |
| Eagle Ford | 7,331 | -6,741 |
| Edwards | — | |
| Georgetown | — |
10 TOPS · FIRST 8
Stumberg Ranch Unit E42-127-37649
0.0 KM · SN EF Maverick, LLC · Section with this well →
| Escondido | 3,139 | -2,549 |
| Olmos | 4,549 | -3,959 |
| San Miguel | 5,710 | -5,120 |
| Anacacho | 6,385 | -5,795 |
| Austin Chalk | 6,776 | -6,186 |
| Eagle Ford | 7,338 | -6,748 |
| Edwards | — | |
| Pearsall | — |
10 TOPS · FIRST 8
Stumberg Ranch Unit E42-127-37638
0.2 KM · SN EF Maverick, LLC · Section with this well →
| Escondido | 3,159 | -2,568 |
| Olmos | 4,560 | -3,969 |
| San Miguel | 5,740 | -5,149 |
| Anacacho | 6,426 | -5,835 |
| Austin Chalk | 6,823 | -6,232 |
| Eagle Ford | 7,380 | -6,789 |
| Glen Rose | — | |
| Edwards | — |
10 TOPS · FIRST 8
Stumberg Ranch Unit E42-127-37639
0.2 KM · SN EF Maverick, LLC · Section with this well →
| Escondido | 3,154 | -2,563 |
| Olmos | 4,558 | -3,967 |
| San Miguel | 5,740 | -5,149 |
| Anacacho | 6,427 | -5,836 |
| Austin Chalk | 6,817 | -6,226 |
| Eagle Ford | 7,379 | -6,788 |
| Edwards | — | |
| Pearsall | — |
10 TOPS · FIRST 8
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/12737909, documented in the API reference.