WELL · 42-079-31814 · DISTRICT 8
Bonanza (San Andres) Unit #4
Cochran County · Bonanza (San Andres) field · Vertical
Bonanza (San Andres) Unit #4 (API 42-079-31814) is a plugged well in Cochran County, plugged February 5, 1998, last operated by Cornerstone Petroleum LLC.
The RRC has issued one drilling permit, issued September 21, 1983, permitted to 5,000 ft.
It was permitted by American Petrofina CO. Of Tex. and has since transferred to Cornerstone Petroleum LLC on the wellbore schedule.
Completion filings report 2 formation tops, including San Andres, T. San Andres.
Its lease has reported 593K barrels of oil and 105K mcf of gas since January 1993, last reporting in July 2026. The lease carries 52 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by American Petrofina Co. of Tex.; the EWA schedule now lists a different operator.
- Based in
- Post, TX
- P-5 status
- Active (A)
- P-5 last filed
- Jan 27, 2026
- Phone
- (806) 549-1619
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Texland-Rector & Schumacher |
| Production reports | Manzano, LLCthrough Apr 2026 |
| Latest permit | American Petrofina Co. of Tex.Sep 21, 1983 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 5,000
- total depth, ft
- 1
- permits on file
- Sep 21, 1983
- last permit issued
- Sep 30, 1991
- completed
- 593K
- cumulative oil, bbl
- 105K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Sep 30, 1991
- Shut in
- —
- Plugged
- Feb 5, 1998
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 52 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Bonanza (San Andres) Unit O-11-66221 | Bonanza (San Andres) | Manzano, LLC | 52 | 593K | 105K | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 189 · prior 12 297(-36%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Texland-Rector & SchumacherJan 1993 → May 1993
- 2Meridian Exploration Corp.Jun 1993 → May 1998
- 3Desana Development CorporationJun 1998 → Oct 1999
- 4Steller Energy & Investment CorpNov 1999 → Aug 2009
- 5Redmon Oil Company, Inc., TheSep 2009 → Aug 2016
- 6Channa Operating, LLCSep 2016 → Jul 2021
- 7Silver Creek Permian OP Co, LLCAug 2021 → Apr 2023
- 8Manzano, LLCMay 2023 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 213642-99 | Drill | American Petrofina Co. of Tex. | Sep 16, 1983 | Sep 21, 1983 | May 7, 1984 | 5,000 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Sep 30, 1991 | Bonanza (San Andres) Unit O-11-66221 | Bonanza (San Andres) | Cornerstone Petroleum LLC | Plugged | — |
| Jan 19, 1984 | Nichols A O-11-64697 | Bonanza (San Andres) | Texland-Rector & Schumacher | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 3,944 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| San AndresSAN ANDRES ZONE 1 | 4,803 | -859 |
| San AndresSAN ANDRES ZONA 1-A | 4,864 | -920 |
| T. San Andres | 5,499 | -1,555 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,811 | 4,882 | Perforated |
| 4,925 | 4,957 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 367 | 12.25 | 275 S |
| 5.5 | 5,001 | 7.875 | 925 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 25, 1991 | Nov 4, 1991 | — |
| 00 | Nov 29, 1988 | Oct 31, 1988 | — |
| 00 | Aug 25, 1988 | May 1, 1984 | — |
| 00 | Aug 18, 1988 | — | — |
| 00 | May 16, 1984 | May 1, 1984 | — |
| 00 | May 8, 1984 | May 1, 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 42-079-31814 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-079-31814 → 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
- 0
- bbl, last 12 reported months
- 147K
- bbl, all reported
- Jan 1998
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000065899 | H-1 Injection | Plugged Feb 19, 1998 | 1,000 | 2,000 | 4,804–5,002 |
MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS
Last 12 months 0 · prior 12 0
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/07931814, documented in the API reference.