WELL · 42-371-32946 · DISTRICT 8
Shaffrath Max D. Etal #4
Pecos County · Coyanosa W. (Delaware 5200) field · Vertical
Shaffrath Max D. Etal #4 (API 42-371-32946) is a plugged well in Pecos County, plugged July 19, 2021, last operated by Sahara Operating Company.
The RRC has issued one drilling permit, issued November 30, 1979, permitted to 7,000 ft.
It was permitted by Atapco and has since transferred to Sahara Operating Company on the wellbore schedule.
Its lease has reported 59.4K barrels of oil and 114 mcf of gas since January 1993, last reporting in July 2026. The lease carries 3 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Atapco; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- Apr 24, 2026
- Permits on file
- 44
- Phone
- (432) 697-0967
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Sahara Operating Company |
| Production reports | Sahara Operating Companythrough Oct 2024 |
| Latest permit | AtapcoNov 30, 1979 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,000
- total depth, ft
- 1
- permits on file
- Nov 30, 1979
- last permit issued
- Mar 15, 1981
- completed
- 59.4K
- cumulative oil, bbl
- 114
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Mar 15, 1981
- Shut in
- —
- Plugged
- Jul 19, 2021
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 3 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Shaffrath, Max D., Etal O-10-16886 | Coyanosa, W. (Delaware 5200) | Sahara Operating Company | 3 | 59.4K | 114 | Jan 1993 – Jul 2026 |
Oil, barrels lease total
Last 12 months 0 · prior 12 5(-100%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Topat Oil CorporationJan 1993 → Oct 1994
- 2Zachry Oil and Gas PropertiesNov 1994 → Jul 2001
- 3Quay Valley, Inc.Aug 2001 → Mar 2004
- 4Sahara Operating CompanyApr 2004 → Oct 2024
Permits
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Mar 15, 1981 | Shaffrath Max D. Etal O-10-16886 | Coyanosa W. (Delaware 5200) | Sahara Operating Company | Plugged | — |
| Mar 15, 1981 | Shaffrath Max D. Etal O-10-16886 | Coyanosa W. (Delaware 5200) | Sahara Operating Company | Plugged | — |
| Jun 18, 1980 | Shaffrath Max.d. et AL O-10-25981 | Coyanosa W. (Castile) | Atapco | Plugged | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 3,699 | 3,784 | Perforated |
| 5,172 | 5,208 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,600 | 12.25 | 600 S |
| 2.375 | 3,802 | — | — |
| 2.375 | 5,005 | — | — |
| 2.375 | 5,081 | — | — |
| 4.5 | 5,330 | 7.875 | 1,000 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 | Jan 12, 1984 | Feb 1, 1983 | — |
| 00 | Jan 12, 1984 | Apr 6, 1981 | — |
| 00 | Jan 12, 1984 | Jun 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 42-371-32946 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-371-32946 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
Beyond the permit record
RRC UIC permits · H-10 reported volumes
Injection
- 0
- bbl, last 12 reported months
- 880K
- bbl, all reported
- May 2021
- reported through
| UIC | Kind | Status | Permitted bbl/d | Max psi | Zone ft |
|---|---|---|---|---|---|
| 000045775 | H-1 Injection | Plugged Sep 29, 2021 | 200 | 800 | 5,172–5,222 |
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/37132946, documented in the API reference.