WELL · 42-479-41303 · DISTRICT 4
Matrix Cerrito Unit B #18H
Webb County · Owen (Olmos) field · Producing · Horizontal
Matrix Cerrito Unit B #18H (API 42-479-41303) is a horizontal well in Webb County operated by Escondido Resources Oper CO LLC, completed December 16, 2011 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued May 16, 2011, permitted to 14,000 ft.
It was permitted by Escondido Resources II, LLC and has since transferred to Escondido Resources Oper CO LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Wilcox, Navarro, Escondido, Olmos.
No lease production has been reported under this well’s leases.
Operator of record
Escondido Resources Oper Co LLC
Permitted by Escondido Resources II, LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Feb 6, 2026
- Permits on file
- 162
- Phone
- (713) 662-0332
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Escondido Resources Oper Co LLC |
| Production reports | Escondido Resources Oper Co, LLCthrough Apr 2026 |
| Latest permit | Escondido Resources II, LLCMay 16, 2011 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 14,000
- total depth, ft
- 2
- permits on file
- May 16, 2011
- last permit issued
- Dec 16, 2011
- completed
- 0
- cumulative oil, bbl
- 1.51M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 2011 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 16, 2011
- 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 |
|---|---|---|---|---|---|---|
| Matrix Cerrito Unit B G-4-266405 | Owen (Olmos) | Escondido Resources Oper Co, LLC | 1 | 0 | 1.51M | Dec 2011 – Jul 2026 |
Gas, mcf lease total
Last 12 months 13,709 · prior 12 13,237(+4%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Escondido Resources II, LLCDec 2011 → Mar 2015
- 2Escondido Resources Oper Co, LLCApr 2015 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 716199-98 | Drill | Escondido Resources II, LLC | Jun 13, 2011 | May 16, 2011 | Jun 30, 2011 | 14,000 |
| 716199-99 | Drill | Escondido Resources II, LLC | May 11, 2011 | May 16, 2011 | — | 14,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-266405 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 783 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,025 | 6,747 | Perforated |
| 6,025 | 10,035 | Perforated |
| 6,847 | 7,569 | Perforated |
| 7,589 | 8,391 | Perforated |
| 8,491 | 9,007 | Perforated |
| 9,222 | 9,223 | Perforated |
| 9,313 | 10,035 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 2,930 | 12.25 | 1,104 S |
| 4.5 | 10,157 | 7.875 | 1,805 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 22, 2024 | Feb 14, 2024 | — |
| 00 | Mar 6, 2013 | Feb 6, 2012 | 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 42-479-41303 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-41303 → 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/47941303, documented in the API reference.