WELL · 42-127-36375 · DISTRICT 1

South Spur Ranch #4H

N

Dimmit County · Briscoe Ranch (Eagleford) field  · Horizontal

South Spur Ranch #4H (API 42-127-36375) is a horizontal well in Dimmit County operated by SN EF Maverick LLC, completed December 21, 2014.

The RRC has issued one drilling permit (amended twice), issued June 19, 2014, permitted to 7,250 ft.

Completion filings report 10 formation tops, including Midway, Escondido, Olmos, San Miguel.

Its 2 leases have reported 285K barrels of oil and 809K mcf of gas since December 2014, last reporting in July 2026. The leases carry 3 wells, so these are lease totals, not this well alone.

Operator of record

SN EF Maverick LLC

Houston, TX · P-5 Y, filed Oct 6, 2023 · 460 permits on file · (956) 721-0060

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleSN EF Maverick LLC
Production reportsJavelin Energy Partners Mgmt LLCthrough Apr 2026
Latest permitAnadarko E&P Onshore LLCJun 19, 2014

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

7,250
total depth, ft
3
permits on file
Jun 19, 2014
last permit issued
Dec 21, 2014
completed
285K
cumulative oil, bbl
809K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Dec 2014 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
OFF SCHEDULE
Completed
Dec 21, 2014
Shut in
—
Plugged
—

Surface location

28.371468, -99.927570

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 2 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
South Spur Ranch O-1-19410Briscoe Ranch (Eagleford)Javelin Energy Partners Mgmt LLC2285K809KFeb 2018 – Jul 2026
South Spur Ranch G-1-278481Briscoe Ranch (Eagleford)SN EF Maverick, LLC100Dec 2014 – Jan 2019

Oil, barrels lease total

Last 12 months 9,788 · prior 12 9,116(+7%)

05001K1.5K202420252026

Gas, mcf lease total

Last 12 months 54,163 · prior 12 41,088(+32%)

02K4K6K202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1SN EF Maverick, LLCFeb 2018 → Aug 2023
  2. 2Javelin Energy Partners Mgmt LLCSep 2023 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
787098-97RecompletionSN EF Maverick, LLCJan 24, 2018Jun 19, 2014Oct 10, 20147,250
787098-98DrillAnadarko E&P Onshore LLCAug 6, 2014Jun 19, 2014Oct 10, 20147,250
787098-99DrillAnadarko E&P Onshore LLCMay 14, 2014Jun 19, 2014Oct 10, 20147,250

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-1-278481————
—— O-1-19410————

Formation tops

As filed on W-2/G-1. Subsea from 740 ft elevation.Download CSV →

FormationMD ftSubsea
Midway1,670-930
EscondidoESCONDIDO - DISPOSAL2,052-1,312
OlmosOLMOS - DISPOSAL3,089-2,349
San MiguelSAN MIGUEL - H2S4,170-3,430
Pecan Gap5,338-4,598
Austin ChalkAUSTIN CHALK - H2S5,680-4,940
Eagle FordEAGLE FORD - H2S6,424-5,684
EdwardsEDWARDS - H2S——
GeorgetownGEORGETOWN - H2S——
Glen RoseGLEN ROSE - DISPOSAL——

Perforations

Perforated and open-hole intervals.

FromToType
7,63411,791Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,14012.25346 S
5.511,9048.52,234 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 →

SuffixFiledW-2 / G-1 dateLogs referenced
00Oct 17, 2018Aug 31, 2018—
00Dec 7, 2015May 7, 2015Yes
00Dec 1, 2015——

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.

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.

Open the cross-section →

South Spur Unit B42-127-37463

1.5 KM · SN EF Maverick, LLC · Section with this well →

Midway1,828-1,115
Escondido2,212-1,499
Olmos3,514-2,801
San Miguel4,747-4,034
Austin Chalk5,831-5,118
Eagle Ford6,586-5,873
Pearsall—
Wilcox—

11 TOPS · FIRST 8

South Spur Unit B42-127-36681

1.5 KM · SN EF Maverick, LLC · Section with this well →

Midway1,794-1,080
Escondido2,185-1,471
Olmos3,230-2,516
San Miguel4,386-3,672
Pecan Gap5,507-4,793
Austin Chalk5,849-5,135
Eagle Ford6,545-5,831
Georgetown—

11 TOPS · FIRST 8

South Spur Unit B42-127-36682

1.5 KM · SN EF Maverick, LLC · Section with this well →

Midway1,794-1,080
Escondido2,185-1,471
Olmos3,230-2,516
San Miguel4,396-3,682
Pecan Gap5,507-4,793
Austin Chalk5,849-5,135
Eagle Ford6,544-5,830
Glen Rose—

10 TOPS · FIRST 8

Briscoe Carla Ranch42-127-38131

1.5 KM · SN EF Maverick, LLC · Section with this well →

Escondido2,165-1,432
Olmos3,435-2,702
San Miguel4,667-3,934
Austin Chalk5,743-5,010
Eagle Ford6,485-5,752
Edwards—
Glen Rose—
Pearsall—

9 TOPS · FIRST 8

Briscoe Carla Ranch42-127-38132

1.5 KM · SN EF Maverick, LLC · Section with this well →

Escondido2,176-1,443
Olmos3,440-2,707
San Miguel4,676-3,943
Austin Chalk5,755-5,022
Eagle Ford6,501-5,768
Pearsall—
Edwards—
Georgetown—

9 TOPS · FIRST 8

Briscoe Carla Ranch42-127-38133

1.5 KM · SN EF Maverick, LLC · Section with this well →

Escondido2,176-1,443
Olmos3,444-2,711
San Miguel4,675-3,942
Austin Chalk5,753-5,020
Eagle Ford6,498-5,765
Glen Rose—
Edwards—
Georgetown—

9 TOPS · FIRST 8

Briscoe Carla Ranch42-127-38134

1.5 KM · SN EF Maverick, LLC · Section with this well →

Escondido2,175-1,443
Olmos3,439-2,707
San Miguel4,676-3,944
Austin Chalk5,743-5,011
Eagle Ford6,496-5,764
Georgetown—
Glen Rose—
Edwards—

9 TOPS · FIRST 8

Briscoe Carla Ranch42-127-38291

2.6 KM · SN EF Maverick, LLC · Section with this well →

Escondido2,244-1,556
Olmos3,508-2,820
San Miguel4,762-4,074
Austin Chalk5,841-5,153
Eagle Ford6,580-5,892
Edwards—
Georgetown—
Glen Rose—

9 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/12736375, documented in the API reference.