TEXAS · WELLS · UPTON COUNTY · VAUGHAN LEASE · API 42-461-37568 · DISTRICT 6E

Vaughan #5503

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Upton County · Spraberry (Trend Area) field · Producing  · Vertical

Vaughan #5503 (API 42-461-37568) is a well in Upton County operated by Cog Operating LLC, completed May 23, 2012 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued July 29, 2011, permitted to 10,932 ft.

It was permitted by Midenergy Operating, LLC and has since transferred to Cog Operating LLC on the wellbore schedule.

Completion filings report 3 formation tops, including Spraberry, Dean, Wolfcamp.

Its lease has reported 162K barrels of oil and 1.2M mcf of gas since November 2011, last reporting in July 2026. The lease carries 4 wells, so these are lease totals, not this well alone.

Operator of record

COG Operating LLC

Permitted by Midenergy Operating, LLC; the EWA schedule now lists a different operator.

Based in
Midland, TX
P-5 status
Active – Extension (X)
P-5 last filed
Jun 2, 2026
Permits on file
4,568
Phone
(432) 683-7443

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleCOG Operating LLC
Production reportsCOG Operating LLCthrough Apr 2026
Latest permitMidenergy Operating, LLCJul 29, 2011

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

10,932
total depth, ft
1
permits on file
Jul 29, 2011
last permit issued
May 23, 2012
completed
162K
cumulative oil, bbl
1.2M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2011 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
May 23, 2012
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 lease this well is completed on; they carry 4 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Vaughan O-9-17758Spraberry (Trend Area)COG Operating LLC4162K1.2MNov 2011 – Jul 2026

Oil, barrels lease total

Last 12 months 6,997 · prior 12 8,233(-15%)

05001K1.5K202420252026

Gas, mcf lease total

Last 12 months 13,040 · prior 12 7,924(+65%)

05001K1.5K202420252026

Chain of custody

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

  1. 1Midenergy Operating, LLCNov 2011 → Jan 2014
  2. 2Athlon Holdings LPFeb 2014 → Jan 2015
  3. 3Encana Oil & Gas(usa) Inc.Feb 2015 → Sep 2019
  4. 4COG Operating LLCOct 2019 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
720825-99DrillMidenergy Operating, LLCJul 22, 2011Jul 29, 2011Mar 9, 201211,500

Completions

CompletedLeaseFieldOperatorStatusDepth
May 23, 2012Vaughan O-9-17758Spraberry (Trend Area)COG Operating LLCProducing10,932

Formation tops

As filed on W-2/G-1. Subsea from 2,787 ft elevation.Download CSV →

FormationMD ftSubsea
Spraberry7,460-4,673
Dean8,850-6,063
Wolfcamp9,040-6,253

Perforations

Perforated and open-hole intervals.

FromToType
8,54210,730Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
9.6251,22512.25500 S
5.510,9327.8751,500 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
00Jul 30, 2013Sep 6, 2012Yes

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/46137568, documented in the API reference.