TEXAS · WELLS · SUTTON COUNTY · MAYFIELD 33 LEASE · API 42-435-38901 · DISTRICT 6E
Mayfield 33 #25H
Sutton County · Sawyer (Canyon) field · Temp Abandoned · Horizontal
Mayfield 33 #25H (API 42-435-38901) is a horizontal well in Sutton County operated by Upp Operating LLC, completed August 25, 2008 and listed as temp abandoned on the RRC schedule, shut in February 1, 2010.
The RRC has issued one drilling permit, issued March 5, 2008, permitted to 7,115 ft.
It was permitted by Highmount Expl & Prod Texas LLC and has since transferred to Upp Operating LLC on the wellbore schedule.
Completion filings report 3 formation tops, including Base Cretaceous (marker), Wolfcamp, Canyon.
No lease production has been reported under this well’s leases.
Operator of record
Permitted by Highmount Expl & Prod Texas LLC; the EWA schedule now lists a different operator.
- Based in
- Houston, TX
- P-5 status
- Active (A)
- P-5 last filed
- Mar 6, 2026
- Permits on file
- 33
- Phone
- (713) 495-5300
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Upp Operating LLC |
| Production reports | none |
| Latest permit | Highmount Expl & Prod Texas LLCMar 5, 2008 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 7,115
- total depth, ft
- 1
- permits on file
- Mar 5, 2008
- last permit issued
- Aug 25, 2008
- completed
- 0
- cumulative oil, bbl
- 0
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 2010 THROUGH —
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Aug 25, 2008
- Shut in
- Feb 1, 2010
- 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.
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; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mayfield 33 G-9-262090 | Sawyer (Canyon) | Upp Operating, LLC | 1 | 0 | 0 | Jan 2010 – — |
No volumes reported on these leases in the last three years.
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 655794-99 | Drill | Highmount Expl & Prod Texas LLC | Feb 21, 2008 | Mar 5, 2008 | May 2, 2008 | 7,200 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Aug 25, 2008 | Mayfield 33 G-9-262090 | Sawyer (Canyon) | Upp Operating LLC | Temp Abandoned · shut in Feb 1, 2010 | 7,115 |
Formation tops
As filed on W-2/G-1. Subsea from 2,251 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Base Cretaceous (marker)BASE CRETACEOUS | 772 | 1,479 |
| Wolfcamp | 3,465 | -1,214 |
| Canyon | 6,296 | -4,045 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,605 | 7,611 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 347 | 17.5 | 400 S |
| 9.625 | 2,420 | 12.25 | 735 S |
| 7 | 6,180 | 8.75 | 450 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 | Apr 11, 2016 | Jan 4, 2016 | — |
| 00 | Feb 9, 2012 | Jun 16, 2010 | Yes |
Well logs
1 log loaded from the RRC's log index, the latest received Dec 1, 2017. Density, Neutron, Resistivity. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.
Open the RRC's log search for this well ↗| Logas described | Files | Intervalft, as filed | Datereceived | SizeMB |
|---|---|---|---|---|
| COMBINATION: RESISTIVITY/NEUTRON/DENSITY POROSITYSpans Base Cretaceous (marker), Wolfcamp, Canyon | TIFF | 2,416 to 6,405 | Dec 1, 2017run May 8, 2008 | 3.21 |
"Spans" is by this well's own filed formation tops: a formation runs from its top to the next deeper top filed, and the deepest runs to the bottom of the log. Depths are measured along the wellbore, so on a horizontal the lateral counts in the formation it was landed in.
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 42-435-38901 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-435-38901 → scanned completion filings
The logs loaded for this well are under Well logs, with the RRC's log search for it.
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/43538901, documented in the API reference.