TEXAS · WELLS · SUTTON COUNTY · SHURLEY 123 LEASE · API 42-435-39040 · DISTRICT 6E

Shurley 123 #27

Shut in

Sutton County · Sawyer (Canyon) field · Producing  · Vertical

Shurley 123 #27 (API 42-435-39040) is a well in Sutton County operated by Upp Operating LLC, completed October 12, 2008 and listed as producing on the RRC schedule, shut in April 1, 2026.

The RRC has issued one drilling permit (amended once), issued July 21, 2008, permitted to 6,653 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.

Its lease has reported 489 barrels of oil and 104K mcf of gas since October 2008, last reporting volume in March 2026.

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 Mar 2026
Latest permitHighmount Expl & Prod Texas LLCJul 21, 2008

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

6,653
total depth, ft
2
permits on file
Jul 21, 2008
last permit issued
Oct 12, 2008
completed
489
cumulative oil, bbl
104K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Oct 2008 THROUGH Mar 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 12, 2008
Shut in
Apr 1, 2026
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 →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Shurley 123 G-9-242251Sawyer (Canyon)Upp Operating, LLC1489104KOct 2008 – Mar 2026

Gas, mcf lease total

Last 12 months 712 · prior 12 933(-24%)

0100200202420252026

Chain of custody

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

  1. 1Highmount Expl & Prod Texas LLCOct 2008 → Sep 2014
  2. 2Enervest Operating, L.L.C.Oct 2014 → Mar 2019
  3. 3Upp Operating, LLCApr 2019 → Mar 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
665664-98DrillHighmount Expl & Prod Texas LLCAug 14, 2008Jul 21, 2008Sep 3, 20086,900
665664-99DrillHighmount Expl & Prod Texas LLCJun 30, 2008Jul 21, 2008Sep 2, 20086,900

Completions

CompletedLeaseFieldOperatorStatusDepth
Oct 12, 2008Shurley 123 G-9-242251Sawyer (Canyon)Upp Operating LLCProducing · shut in Apr 1, 20266,653

Formation tops

As filed on W-2/G-1. Subsea from 2,096 ft elevation.Download CSV →

FormationMD ftSubsea
Base Cretaceous (marker)BASE CRETACEOUS7131,383
Wolfcamp2,558-462
Canyon5,133-3,037

Perforations

Perforated and open-hole intervals.

FromToType
5,1346,458Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6251,07211430 S
4.56,5847.875550 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 →

SuffixRRC record dateW-2 / G-1 dateLogs referenced
00Dec 8, 2008Oct 31, 2008Yes
00Nov 20, 2008——

Well logs

2 logs loaded from the RRC's log index, the latest received Oct 3, 2011. 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 describedFiles Intervalft, as filedDatereceivedSizeMB
NEUTRON/DENSITY POROSITYSpans Wolfcamp, CanyonTIFF4,500 to 6,588Oct 3, 2011run Sep 6, 20081.99
RESISTIVITYSpans Wolfcamp, CanyonTIFF4,500 to 6,598Oct 3, 2011run Sep 6, 20082.79

"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.

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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.

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/43539040, documented in the API reference.