WELL · 42-349-34810 · DISTRICT 5
Cerf-A #5
Navarro County · Corsicana (Shallow) field · Vertical
Cerf-A #5 (API 42-349-34810) is a well in Navarro County operated by KO Operating LLC, completed September 27, 2007.
The RRC has issued one drilling permit, issued June 15, 2007, permitted to 3,000 ft.
It was permitted by Activa Resources, Ltd. and has since transferred to KO Operating LLC on the wellbore schedule.
Completion filings report one formation top, including Austin Chalk.
Its lease has reported 63.1K barrels of oil and 22.6K mcf of gas since September 2007, last reporting in July 2026. The lease carries 19 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Activa Resources, Ltd.; the EWA schedule now lists a different operator.
Austin, TX · P-5 Y, filed Oct 4, 2025 · (740) 506-0854
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | KO Operating LLC |
| Production reports | KO Operating LLCthrough Mar 2026 |
| Latest permit | Activa Resources, Ltd.Jun 15, 2007 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 3,000
- total depth, ft
- 1
- permits on file
- Jun 15, 2007
- last permit issued
- Sep 27, 2007
- completed
- 63.1K
- cumulative oil, bbl
- 22.6K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 2007 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 27, 2007
- Shut in
- —
- Plugged
- —
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 19 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Cerf-A O-5-3856 | Corsicana (Shallow) | KO Operating LLC | 19 | 63.1K | 22.6K | Sep 2007 – Jul 2026 |
Oil, barrels lease total
Last 12 months 561 · prior 12 369(+52%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Activa Resources, Ltd.Oct 2007 → Mar 2008
- 2Activa Resources, LLCApr 2008 → Dec 2012
- 3Thurston Texas Operating Co LLCJan 2013 → Jul 2016
- 4Iskandia Energy Operating, Inc.Aug 2016 → Sep 2024
- 5KO Operating LLCOct 2024 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 640413-99 | Drill | Activa Resources, Ltd. | Jun 7, 2007 | Jun 15, 2007 | Jun 25, 2007 | 3,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-5-3856 | — | — | — | — |
| — | — O-5-3856 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 443 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 2,240 | -1,797 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,340 | 2,490 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 152 | 11 | 55 S |
| 5.5 | 2,774 | 7.875 | 501 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 29, 2016 | Oct 31, 2007 | Yes |
| 00 | Dec 4, 2007 | Oct 31, 2007 | Yes |
| 00 | Nov 26, 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 42-349-34810 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-349-34810 → 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/34934810, documented in the API reference.