TEXAS · WELLS · UPTON COUNTY · UPTON 'Z' FEE LEASE · API 42-461-33531 · DISTRICT 7B
Upton Z Fee #5
Upton County · Concho Bluff North (Queen) field · Shut In · Vertical
Upton Z Fee #5 (API 42-461-33531) is a well in Upton County operated by Diamondback E&P LLC, completed October 23, 1995 and listed as shut in on the RRC schedule, shut in January 1, 2020.
The RRC has issued one drilling permit, issued January 26, 1995, permitted to 4,655 ft.
It was permitted by Texaco E & P Inc. and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report one formation top, including Queen.
Its lease has reported 2.8M barrels of oil and 2.8K mcf of gas since November 1994, last reporting volume in April 2026. The lease carries 28 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Texaco E & P Inc.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,254
- Phone
- (432) 221-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Apr 2026 |
| Latest permit | Texaco E & P Inc.Jan 26, 1995 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 4,655
- total depth, ft
- 1
- permits on file
- Jan 26, 1995
- last permit issued
- Oct 23, 1995
- completed
- 2.8M
- cumulative oil, bbl
- 2.8K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Nov 1994 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Oct 23, 1995
- Shut in
- Jan 1, 2020
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
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.
Wells nearby
Every well with a location on file around this well, in any state, nearest first.
Texas locations come from drilling permits, so most older Texas wells have none and are not listed.
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 28 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Upton 'Z' Fee O-10-34334 | Concho Bluff, North (Queen) | Diamondback E&P LLC | 28 | 2.8M | 2.8K | Nov 1994 – Apr 2026 |
Oil, barrels lease total
Last 12 months 8,607 · prior 12 11,380(-24%)
Gas, mcf lease total
Last 12 months 0 · prior 12 0
Wells named Upton Z Fee
Diamondback E&P LLC's other wells filed under this lease name in Upton County, newest permit first. The RRC gives a gas well its own lease number, so the name is what joins the wells of a unit.
Loading the lease's wellsChain of custody
Every operator that reported production on this well's lease, in order.
- 1Texaco E & P Inc.Nov 1994 → May 2002
- 2Chevron U. S. A. Inc.Jun 2002 → Jan 2022
- 3Firebird Energy LLCFeb 2022 → Nov 2022
- 4Diamondback E&P LLCDec 2022 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 432115-99 | Drill | Texaco E & P Inc. | Jan 23, 1995 | Jan 26, 1995 | Feb 27, 1995 | 4,700 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Oct 23, 1995 | Upton Z Fee O-10-34334 | Concho Bluff North (Queen) | Diamondback E&P LLC | Shut In · shut in Jan 1, 2020 | 4,655 |
Formation tops
As filed on W-2/G-1. Subsea from 2,899 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen | 4,449 | -1,550 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 4,210 | 4,221 | Perforated |
| 4,449 | 4,481 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,750 | 11 | 750 S |
| 5.5 | 4,655 | 7.875 | 1,100 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 | Dec 18, 1995 | Nov 6, 1995 | — |
| 00 | Apr 27, 1995 | Mar 27, 1995 | Yes |
| 00 | Apr 7, 1995 | — | — |
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 42-461-33531 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-461-33531 → 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/46133531, documented in the API reference.