WELL · 42-127-37483 · DISTRICT 1
South Spur Unit B #01HZ
Dimmit County · Briscoe Ranch (Eagleford) field · Producing · Horizontal
South Spur Unit B #01HZ (API 42-127-37483) is a horizontal well in Dimmit County operated by Javelin Energy Partners Mgmt LLC, completed January 31, 2018 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued April 4, 2017, permitted to 6,856 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 10 formation tops, including Midway, Escondido, Olmos, San Miguel.
Its lease has reported 760K barrels of oil and 3.38M mcf of gas since January 2018, last reporting in July 2026. The lease carries 10 wells, so these are lease totals, not this well alone.
Operator of record
Javelin Energy Partners Mgmt LLC
Permitted by SN EF Maverick, 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
- 233
- 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 | SN EF Maverick, LLCApr 4, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,856
- total depth, ft
- 1
- permits on file
- Apr 4, 2017
- last permit issued
- Jan 31, 2018
- completed
- 760K
- cumulative oil, bbl
- 3.38M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2018 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 31, 2018
- 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 10 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| South Spur Unit B O-1-19301 | Briscoe Ranch (Eagleford) | Javelin Energy Partners Mgmt LLC | 10 | 760K | 3.38M | Jan 2018 – Jul 2026 |
Gas, mcf lease total
Last 12 months 118,522 · prior 12 163,436(-27%)
Oil, barrels lease total
Last 12 months 18,889 · prior 12 21,785(-13%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1SN EF Maverick, LLCFeb 2018 → Aug 2023
- 2Javelin Energy Partners Mgmt LLCSep 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 824894-99 | Drill | SN EF Maverick, LLC | Mar 28, 2017 | Apr 4, 2017 | Jun 21, 2017 | 8,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jan 31, 2018 | South Spur Unit B O-1-19301 | Briscoe Ranch (Eagleford) | Javelin Energy Partners Mgmt LLC | Producing | 6,856 |
Formation tops
As filed on W-2/G-1. Subsea from 745 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 1,801 | -1,056 |
| EscondidoESCONDIDO - DISPOSAL | 2,172 | -1,427 |
| OlmosOLMOS - DISPOSAL | 3,472 | -2,727 |
| San MiguelSAN MIGUEL - H2S | 4,702 | -3,957 |
| Austin ChalkAUSTIN CHALK - H2S | 5,792 | -5,047 |
| Eagle FordEAGLE FORD - H2S | 6,531 | -5,786 |
| EdwardsEDWARDS - H2S | — | — |
| GeorgetownGEORGETOWN - H2S | — | — |
| Glen RoseGLEN ROSE - DISPOSAL | — | — |
| Wilcox | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,269 | 13,429 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,987 | 12.25 | 470 S |
| 5.5 | 13,528 | 8.75 | 2,125 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 | Jul 3, 2018 | May 17, 2018 | 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 42-127-37483 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-127-37483 → 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.
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/12737483, documented in the API reference.