WELL · 42-127-37084 · DISTRICT 1
Diamond H State Unit B #8H
Dimmit County · Briscoe Ranch (Eagleford) field · Producing · Horizontal
Diamond H State Unit B #8H (API 42-127-37084) is a horizontal well in Dimmit County operated by Javelin Energy Partners Mgmt LLC, completed June 9, 2018 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued April 27, 2015, permitted to 7,395 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 11 formation tops, including Midway, Escondido, Olmos, San Miguel.
Its 2 leases have reported 2.91M barrels of oil and 8.17M mcf of gas since June 2015, last reporting in July 2026. The leases carry 19 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
- 233
- Phone
- (469) 575-3800
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | SN EF Maverick LLC |
| Production reports | Javelin Energy Partners Mgmt LLCthrough Apr 2026 |
| Latest permit | Anadarko E&P Onshore LLCApr 27, 2015 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,395
- total depth, ft
- 1
- permits on file
- Apr 27, 2015
- last permit issued
- Jun 9, 2018
- completed
- 2.91M
- cumulative oil, bbl
- 8.17M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jun 2015 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 9, 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 2 leases this well is completed on; they carry 19 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Diamond H State Unit B O-1-18802 | Briscoe Ranch (Eagleford) | Javelin Energy Partners Mgmt LLC | 18 | 2.91M | 8.17M | Feb 2016 – Jul 2026 |
| Diamond H State Unit B G-1-280712 | Briscoe Ranch (Eagleford) | SN EF Maverick, LLC | 1 | 0 | 0 | Jun 2015 – Jan 2019 |
Oil, barrels lease total
Last 12 months 135,442 · prior 12 367,189(-63%)
Gas, mcf lease total
Last 12 months 692,307 · prior 12 796,687(-13%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Anadarko E&P Onshore LLCFeb 2016 → Feb 2017
- 2SN EF Maverick, LLCMar 2017 → Aug 2023
- 3Javelin Energy Partners Mgmt LLCSep 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 805700-99 | Drill | Anadarko E&P Onshore LLC | Apr 16, 2015 | Apr 27, 2015 | Jun 5, 2015 | 8,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 9, 2018 | Diamond H State Unit B O-1-18802 | Briscoe Ranch (Eagleford) | Javelin Energy Partners Mgmt LLC | Producing | 7,395 |
| Jun 5, 2015 | Diamond H State Unit B G-1-280712 | Briscoe Ranch (Eagleford) | SN EF Maverick LLC | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 511 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 1,858 | -1,347 |
| EscondidoESCONDIDO - DISPOSAL | 2,326 | -1,815 |
| OlmosOLMOS - DISPOSAL | 3,736 | -3,225 |
| San MiguelSAN MIGUEL - H2S | 4,702 | -4,191 |
| Austin ChalkAUSTIN CHALK - H2S | 6,224 | -5,713 |
| Eagle FordEAGLE FORD - H2S | 6,260 | -5,749 |
| Austin ChalkAUSTIN CHALK - H2S | — | — |
| Eagle FordEAGLE FORD - H2S | — | — |
| EdwardsEDWARDS - H2S | — | — |
| EscondidoESCONDIDO - DISPOSAL | — | — |
| GeorgetownGEORGETOWN - H2S | — | — |
| Glen RoseGLEN ROSE - DISPOSAL | — | — |
| OlmosOLMOS - DISPOSAL | — | — |
| Pearsall | — | — |
| San MiguelSAN MIGUEL - H2S | — | — |
| Wilcox | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,834 | 15,867 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,870 | 12.25 | 581 S |
| 5.5 | 15,956 | 8.75 | 3,785 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 8, 2018 | Sep 19, 2018 | Yes |
| 00 | Aug 31, 2016 | Aug 25, 2016 | 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 42-127-37084 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-127-37084 → 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/12737084, documented in the API reference.