TEXAS · WELLS · WEBB COUNTY · BLOCK, ANNA LEASE · API 42-479-36536 · DISTRICT 04
Block Anna #4
Webb County · Bashara-Hereford (7300) field · Vertical
Block Anna #4 (API 42-479-36536) is a plugged well in Webb County, plugged September 17, 2024, last operated by Columbus Energy LLC.
The RRC has issued one drilling permit, issued August 19, 1996, permitted to 8,600 ft.
It was permitted by Transtexas Gas Corporation and has since transferred to Columbus Energy LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Wilcox, Base Lwr Wilcox, Wills Point.
Operator of record
Permitted by Transtexas Gas Corporation; 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 | Houston Exploration Company, Thethrough Sep 2003 |
| Latest permit | Transtexas Gas CorporationAug 19, 1996 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,600
- total depth, ft
- 1
- permits on file
- Aug 19, 1996
- last permit issued
- Dec 13, 1996
- completed
- 0
- cumulative oil, bbl
- 3.62M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Dec 1996 THROUGH Aug 2024
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Dec 13, 1996
- Shut in
- —
- Plugged
- Sep 17, 2024
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 |
|---|---|---|---|---|---|---|
| Block, Anna G-4-162572 | Bashara-Hereford (7300) | Columbus Energy, LLC | 1 | 0 | 3.62M | Dec 1996 – Aug 2024 |
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.
- 1Transtexas Gas CorporationDec 1996 → May 1997
- 2Conoco Inc.Jun 1997 → Dec 2001
- 3Houston Exploration Company, TheFeb 2002 → Sep 2003
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 450737-99 | Drill | Transtexas Gas Corporation | Jul 24, 1996 | Aug 19, 1996 | Oct 30, 1996 | 8,600 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 13, 1996 | Block Anna G-4-162572 | Bashara-Hereford (7300) | Columbus Energy LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 464 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| WilcoxTOP WILCOX | 3,130 | -2,666 |
| Base LWR Wilcox | 4,418 | -3,954 |
| Wills PointTOP WILLS POINT | 7,900 | -7,436 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,008 | 7,710 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 749 | 12.25 | 348 S |
| 7 | 5,652 | 8.75 | 345 S |
| 4.5 | 8,618 | 6.125 | 340 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 | May 8, 1997 | Jan 16, 1997 | Yes |
| 00 | Apr 30, 1997 | — | — |
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 42-479-36536 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-36536 → 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/47936536, documented in the API reference.