WELL · 42-047-31603 · DISTRICT 4
Cage #1
Brooks County · Tres Encinos (7390) field · Vertical
Cage #1 (API 42-047-31603) is a plugged well in Brooks County, plugged October 30, 2020, last operated by Mission River Systems Inc..
The RRC has issued one drilling permit (amended once), issued August 7, 1991, permitted to 7,800 ft.
It was permitted by Tri-C Resources, Inc. and has since transferred to Mission River Systems Inc. on the wellbore schedule.
Completion filings report 2 formation tops, including Miocene (undifferentiated), Frio.
Operator of record
Permitted by Tri-C Resources, Inc.; the EWA schedule now lists a different operator.
Corpus Chrsti, TX · P-5 Y, filed Sep 4, 2025 · 26 permits on file · (361) 774-6000
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Mission River Systems Inc. |
| Production reports | Mission River Systems, Inc.through Aug 2013 |
| Latest permit | Tri-C Resources, Inc.Aug 7, 1991 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,800
- total depth, ft
- 2
- permits on file
- Aug 7, 1991
- last permit issued
- Sep 17, 1991
- completed
- 0
- cumulative oil, bbl
- 533K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 17, 1991
- Shut in
- —
- Plugged
- Oct 30, 2020
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cage G-4-139403 | Tres Encinos (7390) | Mission River Systems, Inc. | 1 | 0 | 533K | Jan 1993 – Jul 2026 |
| Cage G-4-139406 | Tres Encinos (H-30 Sd.) | D and J Operating, LLC | 1 | 0 | 0 | Jan 1993 – Oct 2020 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Tri-C Resources, Inc.Jan 1993 → Dec 1993
- 2Sonat Exploration Co. - HoustonJan 1994 → Feb 1998
- 3Advantage Oil & Gas, Inc.Mar 1998 → Feb 1999
- 4Marwell Petroleum, Inc.Mar 1999 → Apr 2006
- 5Marwell Petroleum Ltd PartnrshipMay 2006 → Mar 2012
- 6Mission River Systems, Inc.Apr 2012 → Aug 2013
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 390580-98 | Drill | Tri-C Resources, Inc. | Sep 23, 1991 | Aug 7, 1991 | Aug 26, 1991 | 7,800 |
| 390580-99 | Drill | Tri-C Resources, Inc. | Aug 5, 1991 | Aug 7, 1991 | — | 7,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-139403 | — | — | — | — |
| — | — G-4-139406 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 14 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Miocene (undifferentiated)MIOCENE | 1,700 | -1,686 |
| Frio | 2,950 | -2,936 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,308 | 7,316 | Perforated |
| 7,352 | 7,359 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 808 | 12.25 | 305 S |
| 5 | 7,600 | 7.875 | 755 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 5, 1991 | Sep 25, 1991 | Yes |
| 00 | Oct 4, 1991 | — | — |
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 42-047-31603 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-047-31603 → 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/04731603, documented in the API reference.