TEXAS · WELLS · SUTTON COUNTY · API 42-435-34897 · DISTRICT 6E
Mayer Edwin S. Jr. #303
Sutton County · Sawyer (Canyon) field · Producing · Vertical
Mayer Edwin S. JR. #303 (API 42-435-34897) is a well in Sutton County operated by Upp Operating LLC, completed April 16, 2001 and listed as producing on the RRC schedule.
The RRC has issued 2 drilling permits between 1998 and 2001, permitted to 8,033 ft.
It was permitted by Dreyfus, Louis Natural Gas Corp and has since transferred to Upp Operating LLC on the wellbore schedule.
Completion filings report 4 formation tops, including Base Cretaceous (marker), Wolfcamp, Canyon, Strawn.
Its 2 leases have reported 2.02K barrels of oil and 665K mcf of gas since September 1998, last reporting volume in April 2026. The leases carry 2 wells, so these are lease totals, not this well alone.
Operator of record
Permitted by Dreyfus, Louis Natural Gas Corp; 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 | Dreyfus, Louis Natural Gas CorpMar 29, 2001 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 8,033
- total depth, ft
- 2
- permits on file
- Mar 29, 2001
- last permit issued
- Apr 16, 2001
- completed
- 2.02K
- cumulative oil, bbl
- 665K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Sep 1998 THROUGH Apr 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Apr 16, 2001
- 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; they carry 2 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Mayer, Edwin S. Jr. G-9-182689 | Sawyer (Canyon) | Upp Operating, LLC | 1 | 58 | 453K | Apr 2001 – Apr 2026 |
| Mayer, Edwin S. Jr. G-9-170520 | Sawyer (Strawn, North) | Upp Operating, LLC | 1 | 1.96K | 211K | Sep 1998 – Apr 2001 |
Gas, mcf lease total
Last 12 months 1,784 · prior 12 2,258(-21%)
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Dreyfus, Louis Natural Gas CorpSep 1998 → Nov 2001
- 2Dominion Oklahoma Texas E&P, IncDec 2001 → Dec 2007
- 3Highmount Expl & Prod Texas LLCJan 2008 → Sep 2014
- 4Enervest Operating, L.L.C.Oct 2014 → Mar 2019
- 5Upp Operating, LLCApr 2019 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 507175-99 | Recompletion | Dreyfus, Louis Natural Gas Corp | Mar 29, 2001 | Mar 29, 2001 | Apr 10, 2001 | 8,050 |
| 479166-99 | Drill | Dreyfus, Louis Natural Gas Corp | Aug 31, 1998 | Aug 31, 1998 | Sep 4, 1998 | 8,050 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Apr 16, 2001 | Mayer Edwin S. Jr. G-9-182689 | Sawyer (Canyon) | Upp Operating LLC | Producing | 8,033 |
| Sep 17, 1998 | Mayer Edwin S. Jr. G-9-170520 | Sawyer (Strawn North) | Upp Operating LLC | SWR-10-Well · shut in Aug 1, 2001 | 8,033 |
Formation tops
As filed on W-2/G-1. Subsea from 2,351 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Base Cretaceous (marker)BASE CRETACEOUS | 890 | 1,461 |
| Wolfcamp | 3,849 | -1,498 |
| Canyon | 6,975 | -4,624 |
| Strawn | 7,479 | -5,128 |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 6,443 | 6,883 | Perforated |
| 7,535 | 7,614 | Perforated |
| 7,742 | 7,771 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 8.625 | 1,126 | 11 | 290 S |
| 4.5 | 8,030 | 7.875 | 600 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 | Jul 20, 2001 | May 4, 2001 | — |
| 00 | Jun 7, 2001 | — | — |
| 00 | Dec 2, 1998 | Oct 22, 1998 | Yes |
| 00 | Nov 3, 1998 | — | — |
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 42-435-34897 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-435-34897 → 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/43534897, documented in the API reference.