WELL · 42-479-37638 · DISTRICT 4
Cal-Mex #3
Webb County · Clark Ranch (Lobo) field · Producing · Directional
Cal-Mex #3 (API 42-479-37638) is a well in Webb County operated by Columbus Energy LLC, completed May 25, 2001 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued October 27, 2000, permitted to 7,800 ft.
It was permitted by Columbus Energy Corp. and has since transferred to Columbus Energy LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Lobo 1, Lobo 2, Lobo 3.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Columbus Energy Corp.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Apr 4, 2026 · 51 permits on file · (956) 722-5238
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Columbus Energy LLC |
| Production reports | Columbus Energy, LLCthrough Apr 2026 |
| Latest permit | Columbus Energy Corp.Oct 27, 2000 |
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
- 1
- permits on file
- Oct 27, 2000
- last permit issued
- May 25, 2001
- completed
- 0
- cumulative oil, bbl
- 2.39M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · May 2001 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 25, 2001
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: X
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 |
|---|---|---|---|---|---|---|
| Cal-Mex G-4-185567 | Clark Ranch (Lobo) | Columbus Energy, LLC | 1 | 0 | 2.39M | May 2001 – Jul 2026 |
Gas, mcf lease total
Last 12 months 18,388 · prior 12 18,409(0%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Columbus Energy Corp.May 2001 → Jun 2007
- 2Columbus Energy, LLCJul 2007 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 501133-99 | Drill | Columbus Energy Corp. | Oct 23, 2000 | Oct 27, 2000 | Dec 29, 2000 | 7,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-185567 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 429 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lobo 1 | 6,541 | -6,112 |
| Lobo 2 | 6,710 | -6,281 |
| Lobo 3 | 6,889 | -6,460 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,578 | 6,584 | Perforated |
| 6,714 | 6,722 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 535 | 12.25 | 216 S |
| 7 | 5,346 | 8.75 | 340 S |
| 4.5 | 6,992 | 6.125 | 260 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 | Feb 12, 2002 | Oct 29, 2001 | Yes |
| 00 | Nov 26, 2001 | — | — |
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 42-479-37638 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-37638 → 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/47937638, documented in the API reference.