WELL · 42-505-34549 · DISTRICT 4
Cassin E. W. et AL #2
Zapata County · Los Mogotes (Wilcox Cons.) field · SWR-10-Well · Vertical
Cassin E. W. ET AL #2 (API 42-505-34549) is a well in Zapata County operated by Merit Energy Company, completed July 13, 2004 and listed as swr-10-well on the RRC schedule.
The RRC has issued 2 drilling permits between 2002 and 2004, permitted to 12,500 ft.
It was permitted by North Central Oil Corp. and has since transferred to Merit Energy Company on the wellbore schedule.
Completion filings report 5 formation tops, including Upper Asche Marker, Top Of Lower Asche, Lobo Unconformity, Lobo Consolidated.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by North Central Oil Corp.; the EWA schedule now lists a different operator.
- Based in
- Dallas, TX
- P-5 status
- Active (A)
- P-5 last filed
- Nov 7, 2025
- Permits on file
- 1,049
- Phone
- (972) 701-8377
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Merit Energy Company |
| Production reports | Merit Energy Companythrough Apr 2026 |
| Latest permit | North Central Oil Corp.Jun 22, 2004 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 12,500
- total depth, ft
- 2
- permits on file
- Jun 22, 2004
- last permit issued
- Jul 13, 2004
- completed
- 0
- cumulative oil, bbl
- 1.19M
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Oct 2002 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jul 13, 2004
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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 |
|---|---|---|---|---|---|---|
| Cassin, E. W. et AL G-4-192326 | Los Mogotes (Lobo 1) | Merit Energy Company | 1 | 0 | 1.09M | Oct 2002 – Jul 2026 |
| Cassin, E. W. et AL G-4-202386 | Los Mogotes (Wilcox Cons.) | Merit Energy Company | 1 | 0 | 106K | Jul 2004 – Jul 2026 |
Gas, mcf lease total
Last 12 months 911 · prior 12 1,042(-13%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1North Central Oil Corp.Oct 2002 → Dec 2005
- 2Pogo Producing CompanyJan 2006 → Jan 2008
- 3Pogo Producing Company LLCFeb 2008 → Aug 2011
- 4Plains Exploration & Prod. Co.Sep 2011 → Feb 2012
- 5OXY USA Inc.Mar 2012 → Apr 2017
- 6Merit Energy CompanyMay 2017 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 547173-99 | Recompletion | North Central Oil Corp. | Jun 18, 2004 | Jun 22, 2004 | Jun 25, 2004 | 12,500 |
| 520494-99 | Drill | North Central Oil Corp. | May 30, 2002 | May 30, 2002 | Jul 10, 2002 | 12,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-4-192326 | — | — | — | — |
| — | — G-4-202386 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 499 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Upper Asche Marker | 7,365 | -6,866 |
| Top of Lower Asche | 8,255 | -7,756 |
| Lobo Unconformity | 10,445 | -9,946 |
| Lobo Consolidated | 10,954 | -10,455 |
| Note:no Log Above 5,071' | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,582 | 7,595 | Perforated |
| 8,300 | 8,310 | Perforated |
| 10,976 | 11,000 | Perforated |
| 12,114 | 12,136 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 16 | 167 | 20 | 265 S |
| 9.625 | 5,070 | 13.5 | 875 S |
| 4.5 | 12,350 | 6.125 | 460 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 | Mar 14, 2005 | Oct 1, 2004 | — |
| 00 | Sep 2, 2004 | Jul 19, 2004 | Yes |
| 00 | Jul 23, 2004 | — | — |
| 00 | Mar 6, 2003 | Dec 2, 2002 | — |
| 00 | Feb 20, 2003 | Oct 24, 2002 | Yes |
| 00 | Jan 24, 2003 | — | — |
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 42-505-34549 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-505-34549 → 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/50534549, documented in the API reference.