WELL · 42-355-33980 · DISTRICT 4
London Ollie #12
Nueces County · London Gin (Mass. Catahoula) field · Vertical
London Ollie #12 (API 42-355-33980) is a plugged well in Nueces County, plugged April 29, 2025, last operated by CG Technical Operating CO LLC.
The RRC has issued one drilling permit (amended once), issued March 26, 2010, permitted to 5,000 ft.
It was permitted by Extex Operating Company and has since transferred to CG Technical Operating CO LLC on the wellbore schedule.
Completion filings report one formation top, including Masscatahoula.
Its lease has reported 210K barrels of oil and 70 mcf of gas since January 1993, last reporting in July 2026. The lease carries 6 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Extex Operating Company; the EWA schedule now lists a different operator.
Stamford, TX · P-5 Y, filed Dec 4, 2025 · (940) 642-0936
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | CG Technical Operating Co LLC |
| Production reports | CG Technical Operating Co, LLCthrough May 2025 |
| Latest permit | Extex Operating CompanyMar 26, 2010 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,000
- total depth, ft
- 2
- permits on file
- Mar 26, 2010
- last permit issued
- Oct 26, 2010
- completed
- 210K
- cumulative oil, bbl
- 70
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 26, 2010
- Shut in
- —
- Plugged
- Apr 29, 2025
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; they carry 6 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| London, Ollie O-4-1603 | London Gin (Mass. Catahoula) | CG Technical Operating Co, LLC | 6 | 210K | 70 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 25 · prior 12 1,507(-98%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Abi Management Group, Inc.Jan 1993 → Mar 1997
- 2Cliffwood Production Co.Apr 1997 → Nov 1998
- 3Whitfield EnergyDec 1998 → Jan 1999
- 4Extex Operating CompanyFeb 1999 → Mar 2016
- 5CG Technical Operating Co, LLCApr 2016 → May 2025
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 693081-98 | Drill | Extex Operating Company | Sep 14, 2010 | Mar 26, 2010 | Aug 31, 2010 | 5,000 |
| 693081-99 | Drill | Extex Operating Company | Mar 17, 2010 | Mar 26, 2010 | — | 4,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-4-1603 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 40 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Masscatahoula | 4,512 | -4,472 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,480 | 4,496 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,015 | 12.25 | 372 S |
| 5.5 | 4,995 | 7.875 | 475 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 | Jan 6, 2011 | Nov 8, 2010 | Yes |
| 00 | Dec 29, 2010 | — | — |
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 42-355-33980 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-355-33980 → 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.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 6.93M
- bbl, all reported
- Feb 2025
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000102181 | H-1 Injection | Plugged Aug 11, 2025 | 6,000 | 1,400 | 4,400–5,000 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
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/35533980, documented in the API reference.