WELL · 42-055-34953 · DISTRICT 1
Kozlow Caroline #1
Caldwell County · Luling-Branyon field · Vertical
Kozlow Caroline #1 (API 42-055-34953) is a well in Caldwell County operated by R & S Oil Production CO., completed April 30, 2011.
The RRC has issued one drilling permit, issued March 4, 2011, permitted to 3,000 ft.
It was permitted by Left Behind Recovery, LLC and has since transferred to R & S Oil Production CO. on the wellbore schedule.
Completion filings report 2 formation tops, including Dale Lime, Austin Chalk.
Its 2 leases have reported 42.1K barrels of oil and 48.6K mcf of gas since January 1993, last reporting in July 2026. The leases carry 13 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Left Behind Recovery, LLC; the EWA schedule now lists a different operator.
Luling, TX · P-5 Y, filed Jun 4, 2026 · 24 permits on file · (830) 263-0532
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | R & S Oil Production Co. |
| Production reports | R & S Oil Production Co.through Apr 2026 |
| Latest permit | Left Behind Recovery, LLCMar 4, 2011 |
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
- Mar 4, 2011
- last permit issued
- Apr 30, 2011
- completed
- 42.1K
- cumulative oil, bbl
- 48.6K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Apr 30, 2011
- 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 2 leases this well is completed on; they carry 13 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Lay, Leon O-1-3603 | Luling-Branyon | R & S Oil Production Co. | 12 | 41.2K | 48.6K | Jan 1993 – Jul 2026 |
| Kozlow, Caroline O-1-15730 | Luling-Branyon | R & S Oil Production Co. | 1 | 879 | 0 | Apr 2011 – Jan 2025 |
Oil, barrels lease total
Last 12 months 1,413 · prior 12 1,076(+31%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Lay, Warren LeonJan 1993 → Apr 2023
- 2Left Behind Recovery, LLCMay 2011 → Sep 2012
- 3R & S Oil Production Co.Oct 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 710331-99 | Drill | Left Behind Recovery, LLC | Feb 15, 2011 | Mar 4, 2011 | Mar 29, 2011 | 3,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-1-3603 | — | — | — | — |
| — | — O-1-15730 | — | — | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 1,915 | 1,948 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 5.5 | 2,327 | 7.875 | 500 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 | Nov 12, 2024 | Sep 24, 2024 | — |
| 00 | Oct 8, 2024 | Sep 24, 2024 | — |
| 00 | May 2, 2012 | Jun 14, 2011 | — |
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 42-055-34953 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-055-34953 → 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/05534953, documented in the API reference.