WELL · 42-353-31661 · DISTRICT 7
Collins #4
Nolan County · Westwind (Strawn) field · Vertical
Collins #4 (API 42-353-31661) is a plugged well in Nolan County, plugged December 22, 1994, last operated by Calbro Oil & Gas Inc..
The RRC has issued one drilling permit, issued August 10, 1984, permitted to 6,500 ft.
It was permitted by Westwind Exploration, Inc. and has since transferred to Calbro Oil & Gas Inc. on the wellbore schedule.
Completion filings report 3 formation tops, including Strawn, Odom, Caddo.
Its lease has reported 2.85K barrels of oil and 1.78K mcf of gas since January 1993, last reporting in August 2003. The lease carries 5 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Westwind Exploration, Inc.; the EWA schedule now lists a different operator.
Abilene, TX · P-5 Y, filed Mar 4, 2011 · 3 permits on file
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Calbro Oil & Gas Inc. |
| Production reports | M.R.M. Operating, Inc.through Jun 1994 |
| Latest permit | Westwind Exploration, Inc.Aug 10, 1984 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 6,500
- total depth, ft
- 1
- permits on file
- Aug 10, 1984
- last permit issued
- Oct 1, 1984
- completed
- 2.85K
- cumulative oil, bbl
- 1.78K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Aug 2003
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Oct 1, 1984
- Shut in
- —
- Plugged
- Dec 22, 1994
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 5 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Collins O-8-20045 | Westwind (Strawn) | Calbro Oil & Gas Inc. | 5 | 2.85K | 1.78K | Jan 1993 – Aug 2003 |
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.
- 1Western Sky Oil & GasJan 1993 → Dec 1993
- 2M.R.M. Operating, Inc.Jan 1994 → Jun 1994
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 248014-99 | Drill | Westwind Exploration, Inc. | Aug 9, 1984 | Aug 10, 1984 | — | 6,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-8-20045 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,080 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 5,424 | 5,429 | Perforated |
| 5,439 | 5,444 | Perforated |
| 5,447 | 5,453 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 4.5 | 5,600 | 7.875 | 400 S |
| 8.625 | — | 12.25 | 125 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 | Dec 10, 1984 | Oct 5, 1984 | — |
| 00 | Dec 5, 1984 | — | — |
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 42-353-31661 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-353-31661 → 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/35331661, documented in the API reference.