WELL · 42-505-35793 · DISTRICT 4
Zachry #4
Zapata County · Big Mac (6470) field · SWR-10-Well · Vertical
Zachry #4 (API 42-505-35793) is a well in Zapata County operated by Bordertown Energy Resources LLC, completed July 2, 2007 and listed as swr-10-well on the RRC schedule.
The RRC has issued 2 drilling permits in 2007, permitted to 12,000 ft.
It was permitted by El Paso E&P Zapata, L.P. and has since transferred to Bordertown Energy Resources LLC on the wellbore schedule.
Completion filings report one formation top, including Lobo.
No lease production has been reported under this well’s leases.
Operator of record
Bordertown Energy Resources LLC
Permitted by EL Paso E&P Zapata, L.P.; the EWA schedule now lists a different operator.
Bryan, TX · P-5 Y, filed Aug 4, 2025 · 2 permits on file · (956) 614-0250
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Bordertown Energy Resources LLC |
| Production reports | Bordertown Energy Resources, LLCthrough Apr 2026 |
| Latest permit | EL Paso E&P Zapata, L.P.Jul 14, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,000
- total depth, ft
- 2
- permits on file
- Jul 14, 2007
- last permit issued
- Jul 2, 2007
- completed
- 0
- cumulative oil, bbl
- 255K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Mar 2007 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 2, 2007
- 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 2 leases this well is completed on; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Zachry G-4-226460 | Cisco-Benavides (Lobo Cons.) | Bordertown Energy Resources, LLC | 1 | 0 | 255K | Mar 2007 – Jul 2026 |
| Zachry G-4-230671 | Big Mac (6470) | Bordertown Energy Resources, LLC | 1 | 0 | 0 | Jul 2007 – Jul 2026 |
Gas, mcf lease total
Last 12 months 617 · prior 12 392(+57%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1EL Paso E&P Zapata, L.P.Mar 2007 → Dec 2010
- 2EL Paso E & P Company, L. P.Jan 2011 → Jul 2012
- 3EP Energy E&P Company, L.P.Aug 2012 → Oct 2013
- 4Cantera Operating, LLCNov 2013 → Aug 2016
- 5Beehive Operating, LLCOct 2016 → Aug 2022
- 6Bordertown Energy Resources, LLCJan 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 641868-99 | Recompletion | EL Paso E&P Zapata, L.P. | Jul 3, 2007 | Jul 14, 2007 | Jun 20, 2007 | 12,000 |
| 632255-99 | Drill | EL Paso E&P Zapata, L.P. | Jan 22, 2007 | Jan 24, 2007 | Feb 1, 2007 | 12,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-226460 | — | — | — | — |
| — | — G-4-230671 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 431 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Lobo | 8,574 | -8,143 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,414 | 6,430 | Perforated |
| 8,574 | 8,616 | Perforated |
| 8,574 | 10,074 | Perforated |
| 8,948 | 8,954 | Perforated |
| 9,008 | 9,036 | Perforated |
| 10,058 | 10,074 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 760 | 12.25 | 400 S |
| 7 | 6,277 | 8.75 | 500 S |
| 7 | 7,237 | 8.75 | 500 S |
| 4.5 | 10,300 | 6.125 | 385 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 | Nov 15, 2007 | Sep 17, 2007 | — |
| 00 | Nov 7, 2007 | — | — |
| 00 | Aug 9, 2007 | Jul 31, 2007 | — |
| 00 | May 18, 2007 | Apr 24, 2007 | Yes |
| 00 | May 4, 2007 | — | — |
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 42-505-35793 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-35793 → 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/50535793, documented in the API reference.