TEXAS · WELLS · DIMMIT COUNTY · API 42-127-35840 · DISTRICT 01
Stumberg Ranch #48H
Dimmit County · Briscoe Ranch (Eagleford) field · Producing · Horizontal
Stumberg Ranch #48H (API 42-127-35840) is a horizontal well in Dimmit County operated by Javelin Energy Partners Mgmt LLC, completed December 8, 2015 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued October 25, 2013, permitted to 7,435 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 13 formation tops, including Mdiway, Midway, Escondido, Olmos.
Its 3 leases have reported 2.85M barrels of oil and 10.6M mcf of gas since November 2010, last reporting volume in April 2026. The leases carry 24 wells, so these are lease totals, not this well alone.
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 LLCOct 25, 2013 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,435
- total depth, ft
- 1
- permits on file
- Oct 25, 2013
- last permit issued
- Dec 8, 2015
- completed
- 2.85M
- cumulative oil, bbl
- 10.6M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Aug 2014 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 8, 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 3 leases this well is completed on; they carry 24 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Stumberg Ranch G-1-279597 | Briscoe Ranch (Eagleford) | Javelin Energy Partners Mgmt LLC | 1 | 74K | 422K | Jan 2016 – Apr 2026 |
| Stumberg Ranch O-1-15309 | Briscoe Ranch (Eagleford) | Javelin Energy Partners Mgmt LLC | 22 | 2.77M | 10.2M | Nov 2010 – Apr 2026 |
| Stumberg Ranch G-1-273990 | Briscoe Ranch (Eagleford) | Anadarko E&P Onshore LLC | 1 | 0 | 0 | Mar 2014 – — |
Gas, mcf lease total
Last 12 months 365,353 · prior 12 400,691(-9%)
Oil, barrels lease total
Last 12 months 61,453 · prior 12 63,136(-3%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Anadarko E&P Company LPAug 2014 → Aug 2014
- 2Anadarko E&P Onshore LLCSep 2014 → Feb 2017
- 3SN EF Maverick, LLCMar 2017 → Aug 2023
- 4Javelin Energy Partners Mgmt LLCSep 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 771979-99 | Drill | Anadarko E&P Onshore LLC | Oct 16, 2013 | Oct 25, 2013 | Oct 10, 2014 | 8,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 8, 2015 | Stumberg Ranch G-1-279597 | Briscoe Ranch (Eagleford) | Javelin Energy Partners Mgmt LLC | Producing | 7,435 |
| Oct 10, 2014 | Stumberg Ranch O-1-15309 | Briscoe Ranch (Eagleford) | Javelin Energy Partners Mgmt LLC | Not on Schedule | — |
| Oct 1, 2014 | Stumberg Ranch G-1-273990 | Briscoe Ranch (Eagleford) | Anadarko E&P Onshore LLC | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 574 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Mdiway | 2,688 | -2,114 |
| Midway | 2,688 | -2,114 |
| Escondido | 3,069 | -2,495 |
| EscondidoESCONDIDO - DISPOSAL | 3,069 | -2,495 |
| Olmos | 4,352 | -3,778 |
| OlmosOLMOS - DISPOSAL | 4,352 | -3,778 |
| San Miguel | 5,168 | -4,594 |
| San MiguelSAN MIGUEL - H2S | 5,168 | -4,594 |
| Pecan Gap | 6,356 | -5,782 |
| Ausitn Chalk | 6,612 | -6,038 |
| Austin ChalkAUSTIN CHALK - H2S | 6,612 | -6,038 |
| Eagle FordEAGLEFORD | 7,094 | -6,520 |
| Eagle FordEAGLE FORD - H2S | 7,094 | -6,520 |
| EdwardsEDWARDS - H2S | — | — |
| GeorgetownGEORGETOWN - H2S | — | — |
| Glen RoseGLEN ROSE - DISPOSAL | — | — |
| Pearsall | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,073 | 12,039 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,739 | 12.25 | 488 S |
| 5.5 | 12,143 | 8.5 | 1,845 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 | May 13, 2016 | Feb 10, 2016 | Yes |
| 00 | Apr 30, 2015 | Feb 18, 2015 | Yes |
| 00 | Apr 9, 2015 | Oct 2, 2014 | — |
| 00 | Oct 14, 2014 | Jun 9, 2014 | Yes |
Well logs
2 logs loaded from the RRC's log index, 1 of them with a digital LAS file, the latest received Sep 19, 2017. 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 Pecan Gap, Ausitn Chalk, Austin Chalk, Eagle Ford | LAS + TIFF | 6,505 to 12,188 | Sep 19, 2017 | 0.96 + 1.37 |
| Gamma RaySpans Pecan Gap, Ausitn Chalk, Austin Chalk, Eagle Ford | TIFF | 6,505 to 12,188 | Mar 28, 2017 | 4.53 |
"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 42-127-35840 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-127-35840 → 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/12735840, documented in the API reference.