TEXAS · WELLS · WEBB COUNTY · C.D.U. LEASE · API 42-479-36163 · DISTRICT 04
C.D.U. #4
Webb County · San Idelfonso (Lobo) field · Temp Abandoned · Vertical
C.D.U. #4 (API 42-479-36163) is a well in Webb County operated by Columbus Energy LLC, completed October 11, 1994 and listed as temp abandoned on the RRC schedule, shut in November 1, 2012.
The RRC has issued one drilling permit, issued August 17, 1994, permitted to 6,745 ft.
It was permitted by Columbus Energy Corp. and has since transferred to Columbus Energy LLC on the wellbore schedule.
Completion filings report one formation top, including Lobo.
Its lease has reported 3.3K barrels of oil and 806K mcf of gas since October 1994, with no volume in the three years through April 2026.
Operator of record
Permitted by Columbus Energy Corp.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Jun 2, 2026
- Permits on file
- 51
- Phone
- (832) 432-8540
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Columbus Energy LLC |
| Production reports | Columbus Energy, LLCthrough Sep 2019 |
| Latest permit | Columbus Energy Corp.Aug 17, 1994 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,745
- total depth, ft
- 1
- permits on file
- Aug 17, 1994
- last permit issued
- Oct 11, 1994
- completed
- 3.3K
- cumulative oil, bbl
- 806K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 1994 THROUGH Sep 2019
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 11, 1994
- Shut in
- Nov 1, 2012
- Plugged
- —
Operator's P-5 on the schedule: Active – Extension (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 |
|---|---|---|---|---|---|---|
| C.D.U. G-4-152247 | San Idelfonso (Lobo) | Columbus Energy, LLC | 1 | 3.3K | 806K | Oct 1994 – Sep 2019 |
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.
- 1Columbus Energy Corp.Dec 1994 → Jun 2007
- 2Columbus Energy, LLCJul 2007 → Sep 2019
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 426960-99 | Drill | Columbus Energy Corp. | Aug 15, 1994 | Aug 17, 1994 | Sep 13, 1994 | 7,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 11, 1994 | C.D.U. G-4-152247 | San Idelfonso (Lobo) | Columbus Energy LLC | Temp Abandoned · shut in Nov 1, 2012 | 6,745 |
Formation tops
As filed on W-2/G-1. Subsea from 439 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lobo | 6,032 | -5,593 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,152 | 6,165 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 578 | 12.25 | 240 S |
| 7 | 5,491 | 8.75 | 425 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Mar 3, 1995 | Jan 3, 1995 | Yes |
| 00 | Jan 11, 1995 | — | — |
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 42-479-36163 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-36163 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.
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/47936163, documented in the API reference.