TEXAS · WELLS · WEBB COUNTY · ZACHRY, H. B. LEASE · API 42-479-37917 · DISTRICT 04
Zachry H. B. #4
Webb County · Bashara-Hereford (7300) field · Directional
Zachry H. B. #4 (API 42-479-37917) is a plugged well in Webb County, plugged September 24, 2015, last operated by Columbus Energy LLC.
The RRC has issued one drilling permit, issued September 13, 2001, permitted to 8,000 ft.
It was permitted by North Central Oil Corp. and has since transferred to Columbus Energy LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Lobo Unconformity, Lobo 1, Lobo 3, Lobo 6.
Operator of record
Permitted by North Central Oil 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 Apr 2014 |
| Latest permit | North Central Oil Corp.Sep 13, 2001 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,000
- total depth, ft
- 1
- permits on file
- Sep 13, 2001
- last permit issued
- Sep 2, 2002
- completed
- 0
- cumulative oil, bbl
- 469K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2002 THROUGH Sep 2015
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 2, 2002
- Shut in
- —
- Plugged
- Sep 24, 2015
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 |
|---|---|---|---|---|---|---|
| Zachry, H. B. G-4-190802 | Bashara-Hereford (7300) | Columbus Energy, LLC | 1 | 0 | 469K | Sep 2002 – Sep 2015 |
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.
- 1North Central Oil Corp.Sep 2002 → Dec 2005
- 2Pogo Producing CompanyJan 2006 → Mar 2007
- 3White Oak Operating Company LLCApr 2007 → Apr 2008
- 4Chroma Operating, Inc.May 2008 → Jun 2009
- 5Columbus Energy, LLCJul 2009 → Apr 2014
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 512627-99 | Drill | North Central Oil Corp. | Aug 16, 2001 | Sep 13, 2001 | Jul 5, 2002 | 8,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 2, 2002 | Zachry H. B. G-4-190802 | Bashara-Hereford (7300) | Columbus Energy LLC | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 457 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lobo Unconformity | 6,100 | -5,643 |
| Lobo 1 | 6,496 | -6,039 |
| Lobo 3 | 6,746 | -6,289 |
| Lobo 6 | 7,054 | -6,597 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,499 | 6,502 | Perforated |
| 6,563 | 6,566 | Perforated |
| 7,140 | 7,143 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 670 | 12.25 | 275 S |
| 7 | 5,315 | 8.75 | 280 S |
| 4.5 | 7,310 | 6.25 | 290 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 | Oct 28, 2002 | Sep 9, 2002 | Yes |
| 00 | Oct 10, 2002 | — | — |
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 42-479-37917 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-479-37917 → 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/47937917, documented in the API reference.