WELL · 42-435-38771 · DISTRICT 7

Stewart #306

Y

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

Stewart #306 (API 42-435-38771) is a well in Sutton County operated by Upp Operating LLC, completed May 8, 2008 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued November 16, 2007, permitted to 5,950 ft.

It was permitted by Dominion Oklahoma Texas E&P, Inc 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.

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

Operator of record

Upp Operating LLC

Permitted by Dominion Oklahoma Texas E&P, Inc; the EWA schedule now lists a different operator.

Houston, TX · P-5 Y, filed Dec 4, 2025 · 33 permits on file · (817) 389-2729

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleUpp Operating LLC
Production reportsUpp Operating, LLCthrough Jun 2025
Latest permitDominion Oklahoma Texas E&P, IncNov 16, 2007

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

5,950
total depth, ft
2
permits on file
Nov 16, 2007
last permit issued
May 8, 2008
completed
0
cumulative oil, bbl
74K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2008 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
May 8, 2008
Shut in
—
Plugged
—

Operator's P-5 on the schedule: Active

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
Stewart G-9-239934Sawyer (Canyon)Upp Operating, LLC1074KMay 2008 – Jul 2026

Gas, mcf lease total

Last 12 months 17 · prior 12 22(-23%)

050100150202420252026

Chain of custody

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

  1. 1Highmount Expl & Prod Texas LLCMay 2008 → Sep 2014
  2. 2Enervest Operating, L.L.C.Oct 2014 → Mar 2019
  3. 3Upp Operating, LLCApr 2019 → Jun 2025

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
649476-98DrillDominion Oklahoma Texas E&P, IncNov 21, 2007Nov 16, 2007Dec 15, 20075,950
649476-99DrillDominion Oklahoma Texas E&P, IncNov 12, 2007Nov 16, 2007Dec 14, 20075,950

Completions

CompletedLeaseFieldOperatorStatusDepth
—— G-9-239934————

Formation tops

As filed on W-2/G-1. Subsea from 2,318 ft elevation.Download CSV →

FormationMD ftSubsea
Base Cretaceous (marker)BASE CRETACEOUS9541,364
Wolfcamp9761,342
Canyon2,368-50
Strawn5,322-3,004

Perforations

Perforated and open-hole intervals.

FromToType
3,6344,950Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
8.6251,12311350 S
4.55,2667.875600 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
00Oct 13, 2008May 22, 2008Yes
00Oct 8, 2008——

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). 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/43538771, documented in the API reference.