WELL · 42-059-35791 · DISTRICT 7
Caldwell A #2
Callahan County · J. R. G. Canyon field · Vertical
Caldwell A #2 (API 42-059-35791) is a plugged well in Callahan County, plugged July 18, 2017, last operated by Kollao Properties LLC.
The RRC has issued one drilling permit, issued August 27, 1987, permitted to 2,300 ft.
It was permitted by Hopi, Inc. and has since transferred to Kollao Properties LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Cisco, Home Creek (Lime), Canyon.
Operator of record
Permitted by Hopi, Inc.; the EWA schedule now lists a different operator.
Midland, TX · P-5 Y, filed Jan 5, 2026
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Kollao Properties LLC |
| Production reports | Kollao Properties LLCthrough Aug 2010 |
| Latest permit | Hopi, Inc.Aug 27, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 2,300
- total depth, ft
- 1
- permits on file
- Aug 27, 1987
- last permit issued
- Sep 30, 1987
- completed
- 0
- cumulative oil, bbl
- 299K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2017
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 30, 1987
- Shut in
- —
- Plugged
- Jul 18, 2017
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Caldwell "A" G-8-125508 | J. R. G. Canyon | Kollao Properties LLC | 1 | 0 | 299K | Jan 1993 – Jul 2017 |
No volumes reported on these leases in the last three years.
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Four C Oil & Gas Corp.Jan 1993 → Dec 1995
- 2Simpson Oil & Land Co.Jan 1996 → May 1999
- 3Dabb Energy CompanyJun 1999 → Jan 2000
- 4St. Johns Operating #1 L.P.Feb 2000 → Dec 2000
- 5Hughes, Bob Oil CompanyJan 2001 → Feb 2006
- 6Kollao Properties LLCMar 2006 → Aug 2010
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 335056-99 | Drill | Hopi, Inc. | Aug 25, 1987 | Aug 27, 1987 | — | 2,300 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — G-8-125508 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,016 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 2,214 | 2,218 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 185 | 11 | 120 S |
| 4.5 | 2,292 | 7.875 | 175 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 16, 1987 | Oct 26, 1987 | Yes |
| 00 | Nov 9, 1987 | — | — |
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 42-059-35791 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-059-35791 → 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/05935791, documented in the API reference.