TEXAS · WELLS · DIMMIT COUNTY · CHAPARRAL WILDLIFE STATE LEASE · API 42-127-36431 · DISTRICT 01
Chaparral Wildlife State #20H
Dimmit County · Briscoe Ranch (Eagleford) field · Producing · Horizontal
Chaparral Wildlife State #20H (API 42-127-36431) is a horizontal well in Dimmit County operated by Javelin Energy Partners Mgmt LLC, completed November 21, 2014 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued July 11, 2014, permitted to 8,501 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 12 formation tops, including Midway, Escondido, Olmos, San Miguel.
No lease production has been reported under this well’s leases.
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 | Javelin Energy Partners Mgmt LLC |
| Production reports | Javelin Energy Partners Mgmt LLCthrough Apr 2026 |
| Latest permit | Anadarko E&P Onshore LLCJul 11, 2014 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,501
- total depth, ft
- 1
- permits on file
- Jul 11, 2014
- last permit issued
- Nov 21, 2014
- completed
- 0
- cumulative oil, bbl
- 1.31M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2014 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Nov 21, 2014
- 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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Chaparral Wildlife State G-1-276102 | Briscoe Ranch (Eagleford) | Javelin Energy Partners Mgmt LLC | 1 | 0 | 1.31M | Oct 2014 – Jul 2026 |
Gas, mcf lease total
Last 12 months 33,297 · prior 12 27,612(+21%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Anadarko E&P Onshore LLCNov 2014 → 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 |
|---|---|---|---|---|---|---|
| 788439-99 | Drill | Anadarko E&P Onshore LLC | Jun 2, 2014 | Jul 11, 2014 | Jul 21, 2014 | 8,950 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Nov 21, 2014 | Chaparral Wildlife State G-1-276102 | Briscoe Ranch (Eagleford) | Javelin Energy Partners Mgmt LLC | Producing | 8,501 |
Formation tops
As filed on W-2/G-1. Subsea from 558 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Midway | 3,924 | -3,366 |
| EscondidoESCONDIDO - DISPOSAL | 4,382 | -3,824 |
| Olmos | 5,727 | -5,169 |
| OlmosOLMOS - DISPOSAL | 5,727 | -5,169 |
| San Miguel | 6,590 | -6,032 |
| San MiguelSAN MIGUEL - H2S | 6,590 | -6,032 |
| Escondido | 7,382 | -6,824 |
| Pecan Gap | 7,562 | -7,004 |
| Ausitn Chalk | 7,920 | -7,362 |
| Austin ChalkAUSTIN CHALK - H2S | 7,920 | -7,362 |
| Eagle FordEAGLEFORD | 8,249 | -7,691 |
| Eagle FordEAGLE FORD - H2S | 8,249 | -7,691 |
| EdwardsEDWARDS - H2S | — | — |
| GeorgetownGEORGETOWN - H2S | — | — |
| Glen RoseGLEN ROSE - DISPOSAL | — | — |
| Pearsall | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,841 | 16,195 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,749 | 12.25 | 731 S |
| 5.5 | 16,285 | 8.5 | 2,420 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 | Apr 27, 2015 | Dec 30, 2014 | Yes |
| 00 | Mar 26, 2015 | Nov 7, 2014 | 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 42-127-36431 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-127-36431 → 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/12736431, documented in the API reference.