WELL · 42-427-34000 · DISTRICT 4
Gutierrez #4
Starr County · T Patch (Reklaw Oso) field · Producing · Vertical
Gutierrez #4 (API 42-427-34000) is a well in Starr County operated by Mortimer Production Company, completed January 2, 2008 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended twice), issued July 3, 2006, permitted to 7,100 ft.
It was permitted by Thorp Petroleum Corporation and has since transferred to Mortimer Production Company on the wellbore schedule.
Completion filings report 6 formation tops, including Crockett, Queen City, Pogo, Aransas.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Thorp Petroleum Corporation; the EWA schedule now lists a different operator.
San Antonio, TX · P-5 Y, filed Jun 4, 2026 · 53 permits on file · (210) 821-6168
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Mortimer Production Company |
| Production reports | Mortimer Production Companythrough Apr 2026 |
| Latest permit | Thorp Petroleum CorporationJul 3, 2006 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,100
- total depth, ft
- 3
- permits on file
- Jul 3, 2006
- last permit issued
- Jan 2, 2008
- completed
- 0
- cumulative oil, bbl
- 406K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2008 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jan 2, 2008
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
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 |
|---|---|---|---|---|---|---|
| Gutierrez G-4-234479 | T Patch (Reklaw Oso) | Mortimer Production Company | 1 | 0 | 406K | Jan 2008 – Jul 2026 |
Gas, mcf lease total
Last 12 months 6,159 · prior 12 7,144(-14%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Thorp Petroleum CorporationJan 2008 → Jun 2009
- 2Rlu Operating, LLCJul 2009 → Dec 2019
- 3Mortimer Production CompanyJan 2020 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 621978-97 | Drill | Thorp Petroleum Corporation | Mar 12, 2008 | Jul 3, 2006 | Dec 6, 2007 | 7,100 |
| 621978-98 | Drill | Thorp Petroleum Corporation | Oct 19, 2007 | Jul 3, 2006 | — | 7,100 |
| 621978-99 | Drill | Bommer Engineering Co. | Jul 3, 2006 | Jul 3, 2006 | — | 7,100 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-234479 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 367 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Crockett | 3,358 | -2,991 |
| Queen City | 4,450 | -4,083 |
| Pogo | 6,165 | -5,798 |
| Aransas | 6,355 | -5,988 |
| Nueces | 6,430 | -6,063 |
| Los Olmos 1 | 6,830 | -6,463 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,392 | 6,398 | Perforated |
| 6,430 | 6,435 | Perforated |
| 6,456 | 6,460 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 1,886 | 12.25 | 660 S |
| 7 | 5,950 | 8.75 | 225 S |
| 4.5 | 7,100 | 6.25 | 220 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 30, 2008 | Jan 17, 2008 | Yes |
| 00 | Apr 23, 2008 | — | — |
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 42-427-34000 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-427-34000 → 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/42734000, documented in the API reference.