WELL · 42-127-37620 · DISTRICT 1
Briscoe Cochina East Ranch #57HA
Dimmit County · Briscoe Ranch (Eagleford) field · Producing · Horizontal
Briscoe Cochina East Ranch #57HA (API 42-127-37620) is a horizontal well in Dimmit County operated by Javelin Energy Partners Mgmt LLC, completed March 31, 2018 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued August 29, 2017, permitted to 9,200 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 16 formation tops, including Midway, Escondido, Olmos, Austin Chalk.
Its lease has reported 18.3M barrels of oil and 63.1M mcf of gas since May 2010, last reporting in July 2026. The lease carries 122 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.
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, LLCAug 29, 2017 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,200
- total depth, ft
- 1
- permits on file
- Aug 29, 2017
- last permit issued
- Mar 31, 2018
- completed
- 18.3M
- cumulative oil, bbl
- 63.1M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2010 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 31, 2018
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
Surface location
28.393633, -99.412367
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; they carry 122 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Briscoe Cochina East Ranch O-1-15203 | Briscoe Ranch (Eagleford) | Javelin Energy Partners Mgmt LLC | 122 | 18.3M | 63.1M | May 2010 – Jul 2026 |
Oil, barrels lease total
Last 12 months 733,912 · prior 12 650,243(+13%)
Gas, mcf lease total
Last 12 months 3,662,986 · prior 12 3,980,741(-8%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Anadarko E&P Company LPMay 2010 → May 2011
- 2Anadarko E&P Onshore LLCAug 2013 → 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 |
|---|---|---|---|---|---|---|
| 830321-99 | Drill | SN EF Maverick, LLC | Aug 24, 2017 | Aug 29, 2017 | Feb 17, 2018 | 9,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-15203 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 497 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 3,831 | -3,334 |
| EscondidoESCONDIDO - DISPOSAL | 4,367 | -3,870 |
| OlmosOLMOS - DISPOSAL | 5,813 | -5,316 |
| Austin ChalkAUSTIN CHALK - H2S | 6,224 | -5,727 |
| San MiguelSAN MIGUEL - H2S | 6,705 | -6,208 |
| Eagle FordEAGLE FORD - H2S | 8,226 | -7,729 |
| CatahoulaCATAHOULA/FRIO | — | — |
| Cook Mountain | — | — |
| EdwardsEDWARDS - H2S | — | — |
| EdwardsEDWARDS LIMESTONE | — | — |
| GeorgetownGEORGETOWN - H2S | — | — |
| Glen RoseGLEN ROSE - DISPOSAL | — | — |
| Jackson | — | — |
| Queen City | — | — |
| Sligo | — | — |
| Wilcox | — | — |
| Yegua | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,810 | 18,947 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 4,107 | 12.25 | 775 S |
| 5.5 | 19,043 | 8.75 | 3,905 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 | Nov 2, 2018 | Sep 7, 2018 | Yes |
| 00 | Jul 3, 2018 | May 15, 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 42-127-37620 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-127-37620 → 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.
Briscoe Cochina East Ranch42-127-37616
0.0 KM · SN EF Maverick, LLC · Section with this well →
| Midway | 3,828 | -3,331 |
| Escondido | 4,368 | -3,871 |
| Olmos | 5,790 | -5,293 |
| Austin Chalk | 6,224 | -5,727 |
| San Miguel | 6,711 | -6,214 |
| Eagle Ford | 8,231 | -7,734 |
| Pearsall | — | |
| Wilcox | — |
11 TOPS · FIRST 8
Briscoe Cochina East Ranch42-127-37617
0.0 KM · SN EF Maverick, LLC · Section with this well →
| Midway | 3,844 | -3,348 |
| Escondido | 4,404 | -3,908 |
| Olmos | 5,795 | -5,299 |
| Austin Chalk | 6,224 | -5,728 |
| San Miguel | 6,705 | -6,209 |
| Eagle Ford | 8,229 | -7,733 |
| Glen Rose | — | |
| Pearsall | — |
11 TOPS · FIRST 8
Briscoe Cochina East Ranch42-127-37618
0.0 KM · SN EF Maverick, LLC · Section with this well →
| Midway | 3,896 | -3,400 |
| Escondido | 4,439 | -3,943 |
| Olmos | 5,799 | -5,303 |
| Austin Chalk | 6,224 | -5,728 |
| San Miguel | 6,721 | -6,225 |
| Eagle Ford | 8,231 | -7,735 |
| Edwards | — | |
| Georgetown | — |
11 TOPS · FIRST 8
Briscoe Cochina East Ranch42-127-37619
0.0 KM · SN EF Maverick, LLC · Section with this well →
| Midway | 3,887 | -3,391 |
| Escondido | 4,437 | -3,941 |
| Olmos | 5,800 | -5,304 |
| Austin Chalk | 6,224 | -5,728 |
| San Miguel | 6,744 | -6,248 |
| Eagle Ford | 8,229 | -7,733 |
| Glen Rose | — | |
| Pearsall | — |
11 TOPS · FIRST 8
Briscoe Cochina East Ranch42-127-37592
2.2 KM · SN EF Maverick, LLC · Section with this well →
| Midway | 3,877 | -3,400 |
| Escondido | 4,382 | -3,905 |
| Olmos | 5,766 | -5,289 |
| San Miguel | 6,691 | -6,214 |
| Austin Chalk | 7,827 | -7,350 |
| Eagle Ford | 8,227 | -7,750 |
| Wilcox | — | |
| Pearsall | — |
11 TOPS · FIRST 8
Briscoe Cochina East Ranch42-127-38469
3.1 KM · SN EF Maverick, LLC · Section with this well →
| Midway | 3,793 | -3,263 |
| Escondido | 4,342 | -3,812 |
| Olmos | 5,719 | -5,189 |
| Anacacho | 7,407 | -6,877 |
| Austin Chalk | 7,773 | -7,243 |
| Eagle Ford | 8,172 | -7,642 |
| San Miguel | — | |
| Edwards | — |
10 TOPS · FIRST 8
Briscoe Cochina East Ranch42-127-38467
3.1 KM · SN EF Maverick, LLC · Section with this well →
| Midway | 3,793 | -3,535 |
| Escondido | 4,342 | -4,084 |
| Olmos | 5,719 | -5,461 |
| Anacacho | 7,407 | -7,149 |
| Austin Chalk | 7,773 | -7,515 |
| Eagle Ford | 8,172 | -7,914 |
| San Miguel | — | |
| Glen Rose | — |
10 TOPS · FIRST 8
Briscoe Cochina East Ranch42-127-38468
3.1 KM · SN EF Maverick, LLC · Section with this well →
| Midway | 3,793 | -3,263 |
| Escondido | 4,342 | -3,812 |
| Olmos | 5,719 | -5,189 |
| Anacacho | 7,407 | -6,877 |
| Austin Chalk | 7,773 | -7,243 |
| Eagle Ford | 8,172 | -7,642 |
| Edwards | — | |
| Georgetown | — |
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/12737620, documented in the API reference.