TEXAS · WELLS · CALDWELL COUNTY · ROCHESTER, J. UNIT LEASE · API 42-055-31479 · DISTRICT 01
Rochester J. Unit #1
Caldwell County · Salt Flat field · Vertical
Rochester J. Unit #1 (API 42-055-31479) is a plugged well in Caldwell County, plugged September 9, 2025, last operated by Petrosaurus Inc..
The RRC has issued one drilling permit, issued June 23, 1980, permitted to 2,850 ft.
It was permitted by Lincoln Drilling CO. and has since transferred to Petrosaurus Inc. on the wellbore schedule.
Its lease has reported 528 barrels of oil and 618 mcf of gas since the record begins in January 1993, with no volume in the three years through August 2026.
Operator of record
Permitted by Lincoln Drilling Co.; the EWA schedule now lists a different operator.
- Based in
- Somerset, TX
- P-5 status
- Delinquent (D)
- P-5 last filed
- Oct 26, 2020
- Phone
- (210) 624-2750
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Petrosaurus Inc. |
| Production reports | Petrosaurus, Inc.through Dec 2018 |
| Latest permit | Lincoln Drilling Co.Jun 23, 1980 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,850
- total depth, ft
- 1
- permits on file
- Jun 23, 1980
- last permit issued
- Oct 8, 1980
- completed
- 528
- cumulative oil, bbl
- 618
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH, THROUGH DEC 2018
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 8, 1980
- Shut in
- —
- Plugged
- Sep 9, 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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH AUG 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Rochester, J. Unit O-1-6467 | Salt Flat | Petrosaurus, Inc. | 1 | 528 | 618 | by Jan 1993 – Dec 2018 |
No volumes reported on these leases in the last three years.
Wells named Rochester J. Unit
Petrosaurus Inc.'s other wells filed under this lease name in Caldwell County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Clements Operating Company, Inc.Jan 1993 → Mar 1997
- 2Oilex Int'l Investments, Inc.Apr 1997 → Oct 1998
- 3Caltex Energy Co.Oct 1999 → Mar 2011
- 4CCR Operating, LLCApr 2011 → Jul 2011
- 5Luling O&G LLCAug 2011 → Oct 2013
- 6Iao Energy, LLCSep 2018 → Dec 2018
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 84643-99 | Drill | Lincoln Drilling Co. | Jun 23, 1980 | Jun 23, 1980 | — | 2,850 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 8, 1980 | Rochester J. Unit O-1-6467 | Salt Flat | Petrosaurus Inc. | Plugged | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,374 | 2,507 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 2.375 | 2,400 | — | — |
| 5 | 2,701 | 7.875 | 506 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. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jan 12, 1984 | Oct 20, 1980 | — |
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 42-055-31479 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-055-31479 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it.
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/05531479, documented in the API reference.