WELL · 42-349-31852 · DISTRICT 5
James H. Cerf #1
Navarro County · Vertical
James H. Cerf #1 (API 42-349-31852) is a former disposal or injection well in Navarro County, last operated by Thurston Texas Operating CO LLC; its UIC permit is no longer active.
The RRC has issued 3 drilling permits between 1981 and 2015, permitted to 3,500 ft.
Completion filings report 2 formation tops, including Austin Chalk, Woodbine.
Its 3 leases have reported 66.8K barrels of oil and 22.6K mcf of gas since January 1993, last reporting in July 2026. The leases carry 22 wells, so these are lease totals, not this well alone.
Operator of record
Thurston Texas Operating Co LLC
Dallas, TX · P-5 Y, filed Dec 6, 2024 · 10 permits on file · (214) 669-8655
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | none |
| Production reports | KO Operating LLCthrough Mar 2026 |
| Latest permit | Thurston Texas Operating Co LLCNov 9, 2015 |
- 3,500
- total depth, ft
- 3
- permits on file
- Nov 9, 2015
- last permit issued
- —
- completed
- 66.8K
- cumulative oil, bbl
- 22.6K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- —
- 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 3 leases this well is completed on; they carry 22 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 |
| James H. Cerf O-5-4214 | Corsicana (Shallow) | Thurston Texas Operating Co LLC | 1 | 0 | 0 | Nov 2015 – Jun 2016 |
| Cerf, James H. O-5-3293 | Powell | Thurston Texas Operating Co LLC | 2 | 3.7K | 23 | Jan 1993 – Mar 2016 |
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.
- 1Miller, Mike / Miller Prod. Co.Jul 1994 → Jul 1995
- 2Miller, MikeAug 1995 → Jun 1996
- 3Activa Resources, Ltd.Oct 2007 → Mar 2008
- 4Activa Resources, LLCApr 2008 → Dec 2012
- 5Thurston Texas Operating Co LLCJan 2013 → Jul 2016
- 6Iskandia Energy Operating, Inc.Aug 2016 → Sep 2024
- 7KO Operating LLCOct 2024 → Mar 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 811486-99 | Field transfer | Thurston Texas Operating Co LLC | Oct 23, 2015 | Nov 9, 2015 | — | 3,500 |
| 241604-99 | Recompletion | Sabio Oil & Gas Inc. | May 7, 1984 | May 31, 1984 | — | 3,500 |
| 126973-99 | Drill | Sabio Oil & Gas Inc. | Jul 23, 1981 | Jul 23, 1981 | — | 3,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-5-3293 | — | — | — | — |
| — | — O-5-3293 | — | — | — | — |
| — | — O-5-3856 | — | — | — | — |
| — | — O-5-4214 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 432 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Austin Chalk | 2,310 | -1,878 |
| Austin Chalk | 2,770 | -2,338 |
| Woodbine | 2,908 | -2,476 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,330 | 2,500 | Perforated |
| 2,897 | 2,899 | Perforated |
| 2,897 | 3,010 | Perforated |
| 2,904 | 2,906 | Perforated |
| 2,906 | 2,908 | Perforated |
| 2,910 | 2,912 | Perforated |
| 3,008 | 3,010 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 9.625 | 109 | 12.25 | 60 S |
| 9.625 | 120 | 12.25 | 60 S |
| 2.875 | 2,880 | — | — |
| 5.5 | 3,299 | 7.875 | 400 S |
| 5.5 | 3,330 | 7.875 | 400 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 | Apr 7, 2016 | Nov 11, 2015 | — |
| 00 | Mar 29, 2016 | May 18, 2007 | — |
| 00 | Jan 15, 2016 | May 18, 2007 | — |
| 00 | Aug 6, 2007 | May 18, 2007 | — |
| 00 | Oct 6, 1994 | Jul 12, 1994 | — |
| 00 | Sep 15, 1994 | Dec 8, 1988 | — |
| 00 | Aug 3, 1989 | Dec 8, 1988 | — |
| 00 | Mar 21, 1989 | — | — |
| 00 | Oct 26, 1984 | Oct 1, 1984 | — |
| 00 | Jan 12, 1984 | Feb 26, 1982 | — |
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 42-349-31852 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-349-31852 → 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
- 70K
- bbl, last 12 reported months
- 1.81M
- bbl, all reported
- Mar 1994
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000044827 | W-14 Disposal | Canceled Aug 4, 1994 | 3,000 | 800 | 3,170–3,318 |
MONTHLY INJECTED, BBL · H-10 · LAST 13 REPORTED MONTHS
Last 12 months 70,000
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/34931852, documented in the API reference.