WELL · 42-321-31878 · DISTRICT 3
Santos-Lewis GU #1
Matagorda County · Duncan Slough (Frio Cons.) field · Producing · Vertical
Santos-Lewis GU #1 (API 42-321-31878) is a well in Matagorda County operated by Atlas Operating LLC, completed May 6, 2009 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit (amended once), issued April 27, 2001, permitted to 12,800 ft.
It was permitted by Esenjay Exploration, Inc and has since transferred to Atlas Operating LLC on the wellbore schedule.
Completion filings report 2 formation tops, including Frio, Tx Miss 6.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Esenjay Exploration, Inc; 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 | Atlas Operating LLCthrough Mar 2026 |
| Latest permit | Esenjay Exploration, IncApr 27, 2001 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,800
- total depth, ft
- 2
- permits on file
- Apr 27, 2001
- last permit issued
- May 6, 2009
- completed
- 0
- cumulative oil, bbl
- 2.3M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2001 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- May 6, 2009
- 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 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 |
|---|---|---|---|---|---|---|
| Santos-Lewis GU G-3-188995 | Duncan Slough (Frio Cons.) | Atlas Operating LLC | 1 | 0 | 2.3M | Jul 2001 – Jul 2026 |
Gas, mcf lease total
Last 12 months 11,107 · prior 12 9,365(+19%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Esenjay Exploration, IncSep 2001 → Dec 2003
- 2Santos USA Corp.Jan 2004 → Sep 2006
- 3Expro Engineering, Inc.Oct 2006 → Dec 2015
- 4Gaither Petroleum CorporationJan 2016 → Dec 2017
- 5Atlas Operating LLCJan 2018 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 508233-98 | Drill | Esenjay Exploration, Inc | Sep 20, 2001 | Apr 27, 2001 | May 24, 2001 | 12,800 |
| 508233-99 | Drill | Esenjay Exploration, Inc | Apr 26, 2001 | Apr 27, 2001 | — | 12,800 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-3-188995 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 29 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| FrioFRIO TX MISS 6 | 11,045 | -11,016 |
| TX Miss 6 | 11,045 | -11,016 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 10,522 | 10,523 | Perforated |
| 10,528 | 10,532 | Perforated |
| 10,543 | 10,548 | Perforated |
| 10,572 | 10,574 | Perforated |
| 10,582 | 10,584 | Perforated |
| 10,591 | 10,593 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 2,220 | 12.25 | 865 S |
| 7 | 10,259 | 8.75 | 410 S |
| 4.5 | 11,745 | 6.125 | 415 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 26, 2009 | Jun 11, 2009 | — |
| 00 | Jul 10, 2002 | Apr 18, 2002 | Yes |
| 00 | Jun 13, 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 42-321-31878 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-321-31878 → 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/32131878, documented in the API reference.