TEXAS · WELLS · SCHLEICHER COUNTY · API 42-413-32623 · DISTRICT 6E

Mayer Edwin S. Jr. E #13

Shut in

Schleicher County · Sawyer (Strawn North) field · SWR-10-Well  · Vertical

Mayer Edwin S. JR. E #13 (API 42-413-32623) is a well in Schleicher County operated by Upp Operating LLC, completed May 13, 2010 and listed as swr-10-well on the RRC schedule, shut in September 1, 2024.

The RRC has issued one drilling permit, issued January 15, 2010, permitted to 8,400 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 5 formation tops, including Base Cretaceous (marker), Wolfcamp, Canyon, Strawn.

No lease production has been reported under this well’s leases.

Operator of record

Upp Operating LLC

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 scheduleUpp Operating LLC
Production reportsUpp Operating, LLCthrough Aug 2024
Latest permitHighmount Expl & Prod Texas LLCJan 15, 2010

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

8,400
total depth, ft
1
permits on file
Jan 15, 2010
last permit issued
May 13, 2010
completed
0
cumulative oil, bbl
25.9K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2010 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
May 13, 2010
Shut in
Sep 1, 2024
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 3 leases this well is completed on; they carry 3 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Mayer, Edwin S. Jr. "E" G-1-258467Kelley (Ellenburger)Upp Operating, LLC100May 2010 – Jul 2026
Mayer, Edwin S. Jr. "E" G-9-258465Sawyer (Canyon)Upp Operating, LLC1025.9KMay 2010 – Jul 2026
Mayer, Edwin S. Jr. "E" G-9-258466Sawyer (Strawn, North)Upp Operating, LLC100May 2010 – Jul 2026

Gas, mcf lease total

Last 12 months 0 · prior 12 87(-100%)

0102030202420252026

Chain of custody

Every operator that reported production on this well's lease, in order.

  1. 1Highmount Expl & Prod Texas LLCMay 2010 → Sep 2014
  2. 2Enervest Operating, L.L.C.Oct 2014 → Mar 2019
  3. 3Upp Operating, LLCApr 2019 → Aug 2024

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
689752-99DrillHighmount Expl & Prod Texas LLCJan 14, 2010Jan 15, 2010Mar 18, 20108,650

Completions

CompletedLeaseFieldOperatorStatusDepth
May 13, 2010Mayer Edwin S. Jr. E G-9-258466Sawyer (Strawn North)Upp Operating LLCSWR-10-Well · shut in May 1, 20108,400
May 13, 2010Mayer Edwin S. Jr. E G-9-258465Sawyer (Canyon)Upp Operating LLCProducing · shut in Sep 1, 20248,400
May 13, 2010Mayer Edwin S. Jr. E G-1-258467Kelley (Ellenburger)Upp Operating LLCSWR-10-Well · shut in May 1, 20108,400

Formation tops

As filed on W-2/G-1. Subsea from 2,425 ft elevation.Download CSV →

FormationMD ftSubsea
Base Cretaceous (marker)BASE CRETACEOUS2,36362
Wolfcamp4,445-2,020
Canyon6,856-4,431
Strawn8,014-5,589
Ellenburger8,189-5,764

Perforations

Perforated and open-hole intervals.

FromToType
7,0707,282Perforated
8,0668,126Perforated
8,2368,296Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6252,36411625 S
4.58,3587.875520 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. About these reports →

SuffixFiledW-2 / G-1 dateLogs referenced
00Jan 20, 2011Oct 4, 2010Yes
00Jan 10, 2011——

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.

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their 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/41332623, documented in the API reference.