TEXAS · WELLS · UPTON COUNTY · STUMHOFFER "A" LEASE · API 42-461-32636 · DISTRICT 6E
Stumhoffer A #2
Upton County · Spraberry (Trend Area) field · Vertical
Stumhoffer A #2 (API 42-461-32636) is a plugged well in Upton County, plugged March 31, 2022, last operated by Apache Corporation.
The RRC has issued one drilling permit, issued May 6, 1987, permitted to 9,200 ft.
It was permitted by Tamarack Petroleum Company, Inc. and has since transferred to Apache Corporation on the wellbore schedule.
Completion filings report 5 formation tops, including Clear Fork, Upper Sparberry, Spraberry, Jo Mill.
Its lease has reported 48.5K barrels of oil and 389K mcf of gas since January 1993, with no volume in the three years through April 2026. The lease carries 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Tamarack Petroleum Company, Inc.; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Dec 3, 2025
- Permits on file
- 9,758
- Phone
- (713) 954-5500
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Apache Corporation |
| Production reports | Apache Corporationthrough Mar 2019 |
| Latest permit | Tamarack Petroleum Company, Inc.May 6, 1987 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,200
- total depth, ft
- 1
- permits on file
- May 6, 1987
- last permit issued
- Jul 7, 1987
- completed
- 48.5K
- cumulative oil, bbl
- 389K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Mar 2019
Regulatory status · RRC wellbore file
- Schedule
- OFF SCHEDULE
- Completed
- Jul 7, 1987
- Shut in
- —
- Plugged
- Mar 31, 2022
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 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Stumhoffer "A" O-9-12226 | Spraberry (Trend Area) | Apache Corporation | 2 | 48.5K | 389K | Jan 1993 – Mar 2019 |
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.
- 1Tamarack Petroleum Company, Inc.Jan 1993 → Nov 2007
- 2Mariner Energy, Inc.Dec 2007 → Nov 2010
- 3Apache CorporationDec 2010 → Mar 2019
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 329742-99 | Drill | Tamarack Petroleum Company, Inc. | May 4, 1987 | May 6, 1987 | — | 9,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jul 7, 1987 | Stumhoffer A O-9-12226 | Spraberry (Trend Area) | Apache Corporation | Plugged | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,785 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Clear ForkCLEARFORK | 7,100 | -4,315 |
| Upper Sparberry | 7,484 | -4,699 |
| SpraberryLOWER SPRABERRY | 8,070 | -5,285 |
| Jo Mill | 8,365 | -5,580 |
| Dean | 8,876 | -6,091 |
| DeanBASE-DEAN | 9,070 | -6,285 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,488 | 7,593 | Perforated |
| 8,091 | 8,299 | Perforated |
| 8,378 | 8,431 | Perforated |
| 8,896 | 9,068 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 400 | 17.5 | 400 S |
| 8.625 | 4,375 | 11 | 2,350 S |
| 4.5 | 9,178 | 7.875 | 1,400 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 | Aug 6, 1987 | Jul 23, 1987 | Yes |
| 00 | Jul 28, 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 42-461-32636 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-32636 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its 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/46132636, documented in the API reference.