WELL · 42-047-32143 · DISTRICT 4
Lopez #4A
Brooks County · Encinitas (Frio 6926) field · Shut IN · Vertical
Lopez #4A (API 42-047-32143) is a well in Brooks County operated by Atlas Operating LLC, completed July 17, 2008 and listed as shut in on the RRC schedule.
The RRC has issued 2 drilling permits between 2004 and 2008, permitted to 12,900 ft.
It was permitted by Loudon Operating Company, L.L.C. and has since transferred to Atlas Operating LLC on the wellbore schedule.
Completion filings report one formation top, including Vicksburg.
Its 2 leases have reported 7.99K barrels of oil and 503K mcf of gas since July 2004, last reporting in July 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Loudon Operating Company, L.L.C.; the EWA schedule now lists a different operator.
Houston, TX · P-5 Y, filed Oct 4, 2025 · 78 permits on file · (281) 893-9400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Atlas Operating LLC |
| Production reports | Loudon Operating Company, L.L.C.through Jun 2009 |
| Latest permit | Loudon Operating Company, L.L.C.Aug 25, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,900
- total depth, ft
- 2
- permits on file
- Aug 25, 2008
- last permit issued
- Jul 17, 2008
- completed
- 7.99K
- cumulative oil, bbl
- 503K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2004 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 17, 2008
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: H
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 |
|---|---|---|---|---|---|---|
| Lopez G-4-204133 | Rucias, N. (FB L) | Atlas Operating LLC | 1 | 0 | 482K | Jul 2004 – Jul 2026 |
| Lopez O-4-13588 | Encinitas (Frio 6926) | Atlas Operating LLC | 1 | 7.99K | 20.8K | Jul 2008 – Jul 2026 |
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.
- 1Loudon Operating Company, L.L.C.Jul 2004 → May 2009
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 668404-99 | Recompletion | Loudon Operating Company, L.L.C. | Aug 6, 2008 | Aug 25, 2008 | Jun 29, 2008 | 12,900 |
| 544948-99 | Drill | Loudon Operating Company, L.L.C. | Apr 26, 2004 | Apr 26, 2004 | — | 12,900 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-204133 | — | — | — | — |
| — | — O-4-13588 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 201 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,926 | 6,930 | Perforated |
| 11,622 | 11,624 | Perforated |
| 11,641 | 11,641 | Perforated |
| 11,648 | 11,652 | Perforated |
| 11,676 | 11,679 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 2,640 | 17.5 | 1,880 S |
| 9.625 | 8,726 | 12.25 | 1,080 S |
| 4.5 | 12,109 | 6.5 | 440 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 25, 2010 | Aug 7, 2009 | Yes |
| 00 | Mar 10, 2010 | — | — |
| 00 | Jan 3, 2005 | Sep 20, 2004 | Yes |
| 00 | Nov 10, 2004 | — | — |
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 42-047-32143 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-047-32143 → 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/04732143, documented in the API reference.