TEXAS · WELLS · SUTTON COUNTY · API 42-435-33276 · DISTRICT 6E
Mayer Ranch T #18
Sutton County · Sawyer (Canyon) field · Producing · Vertical
Mayer Ranch T #18 (API 42-435-33276) is a well in Sutton County operated by Upp Operating LLC, completed June 23, 1991 and listed as producing on the RRC schedule.
The RRC has issued 3 drilling permits between 1985 and 1990, permitted to 8,450 ft.
It was permitted by Graham Royalty, Ltd. and has since transferred to Upp Operating LLC on the wellbore schedule.
Completion filings report 2 formation tops, including Canyon, Strawn.
Its 2 leases have reported 1 barrels of oil and 322K mcf of gas since January 1993, last reporting volume in April 2026.
Operator of record
Permitted by Graham Royalty, Ltd.; 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 | Upp Operating, LLCthrough Apr 2026 |
| Latest permit | Graham Royalty, Ltd.Dec 3, 1990 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,450
- total depth, ft
- 3
- permits on file
- Dec 3, 1990
- last permit issued
- Jun 23, 1991
- completed
- 1
- cumulative oil, bbl
- 322K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Jun 23, 1991
- Shut in
- —
- 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 2 leases this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mayer Ranch "T" G-9-137202 | Sawyer (Canyon) | Upp Operating, LLC | 1 | 1 | 322K | Jan 1993 – Apr 2026 |
| — G-9-119086 | — | — | 0 | 0 | 0 | — |
Gas, mcf lease total
Last 12 months 734 · prior 12 739(-1%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Graham Royalty, Ltd.Jan 1993 → Oct 1993
- 2Dreyfus, Louis Natural Gas CorpNov 1993 → Nov 2001
- 3Dominion Oklahoma Texas E&P, IncDec 2001 → Dec 2007
- 4Highmount Expl & Prod Texas LLCJan 2008 → Sep 2014
- 5Enervest Operating, L.L.C.Oct 2014 → Mar 2019
- 6Upp Operating, LLCApr 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 381235-99 | Recompletion | Graham Royalty, Ltd. | Nov 19, 1990 | Dec 3, 1990 | Oct 2, 1990 | 8,450 |
| 286175-99 | Drill | Statex Petroleum Inc. | Sep 27, 1985 | Sep 27, 1985 | — | 8,450 |
| 264905-99 | Drill | Statex Petroleum Inc. | Jan 21, 1985 | Jan 23, 1985 | — | 8,250 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Jun 23, 1991 | Mayer Ranch T G-9-137202 | Sawyer (Canyon) | Upp Operating LLC | Producing | 8,450 |
| Nov 5, 1985 | Mayer Ranch T G-9-119086 | Sawyer (Strawn North) | Graham Royalty Ltd. | Not on Schedule | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,358 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| CanyonCANYON MARKER | 6,317 | -3,959 |
| CanyonTOP CANYON MARKER | 6,317 | -3,959 |
| CanyonCANYON SD SEC | 6,573 | -4,215 |
| CanyonTOP CANYON SAND SEC | 6,573 | -4,215 |
| CanyonTOP CANYON SD MARKER | 6,573 | -4,215 |
| CanyonBASE CANYON SD MARKER | 7,760 | -5,402 |
| CanyonBASE CANYON SD SEC | 7,760 | -5,402 |
| StrawnSTRAWN LS | 7,847 | -5,489 |
| StrawnTOP STRAWN LS | 7,847 | -5,489 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,580 | 7,757 | Perforated |
| 7,854 | 8,282 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,319 | 12.25 | 520 S |
| 4.5 | 8,435 | 7.875 | 550 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 | Oct 8, 1991 | Aug 5, 1991 | Yes |
| 00 | Oct 7, 1991 | Feb 11, 1991 | — |
| 00 | Mar 15, 1991 | — | Yes |
| 00 | Oct 22, 1987 | Oct 13, 1987 | Yes |
| 00 | Dec 13, 1985 | Nov 25, 1985 | Yes |
| 00 | Dec 11, 1985 | — | — |
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 42-435-33276 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-435-33276 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here 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/43533276, documented in the API reference.