Petrora

TEXAS · WELLS · UPTON COUNTY · API 42-461-33191 · DISTRICT 6E

Pegasus Spraberry Unit #1723

Y

Upton County · Pegasus (Consolidated) field · Shut In  · Vertical

Pegasus Spraberry Unit #1723 (API 42-461-33191) is a well in Upton County operated by Cog Operating LLC, completed February 3, 1998 and listed as shut in on the RRC schedule.

The RRC has issued 2 drilling permits between 1991 and 1997, permitted to 10,584 ft.

It was permitted by Mobil Producing TX. & N.M. Inc. and has since transferred to Cog Operating LLC on the wellbore schedule.

Completion filings report 6 formation tops, including San Andres, Spraberry, Wolfcamp, Strawn.

Its 3 leases have reported 17.1M barrels of oil and 41.9M mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 303 wells, so these are lease totals, not this well alone.

Operator of record

COG Operating LLC

Permitted by Mobil Producing TX. & N.M. Inc.; 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
Watch this operatorWatch Upton County

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleCOG Operating LLC
Production reportsCOG Operating LLCthrough Apr 2026
Latest permitMobil Producing TX. & N.M. Inc.Dec 10, 1997

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

10,584
total depth, ft
2
permits on file
Dec 10, 1997
last permit issued
Feb 3, 1998
completed
17.1M
cumulative oil, bbl
41.9M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Feb 3, 1998
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 3 leases this well is completed on; they carry 303 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Pegasus Spraberry Unit O-9-17147Pegasus (Consolidated)COG Operating LLC9712.2M20.4MMay 2010 – Apr 2026
Pegasus Pennsylvanian Unit O-9-1178Pegasus (Pennsylvanian)COG Operating LLC991.9M18.7MJan 1993 – Apr 2010
Pegasus Spraberry Unit O-9-4116Pegasus (Spraberry)COG Operating LLC1072.96M2.76MJan 1993 – Apr 2010

Oil, barrels lease total

Last 12 months 1,476,452 · prior 12 2,808,942(-47%)

0200K400K600K202420252026

Gas, mcf lease total

Last 12 months 4,272,339 · prior 12 4,462,482(-4%)

0200K400K600K202420252026

Chain of custody

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

  1. 1Mobil Producing TX. & N.M. Inc.Jan 1993 → Mar 1998
  2. 2Henry Petroleum Corp.Apr 1998 → Mar 2001
  3. 3Henry Petroleum LPApr 2001 → Dec 2008
  4. 4COG Operating LLCJan 2009 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
470414-99RecompletionMobil Producing TX. & N.M. Inc.Nov 21, 1997Dec 10, 1997Jan 6, 199810,584
393355-99DrillMobil Producing TX. & N.M. Inc.Oct 28, 1991Oct 30, 1991Dec 13, 199111,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Feb 3, 1998Pegasus Spraberry Unit O-9-17147Pegasus (Consolidated)COG Operating LLCShut In10,584
Feb 3, 1998Pegasus Spraberry Unit O-9-4116Pegasus (Spraberry)COG Operating LLCNot on Schedule—
Apr 13, 1992Pegasus Pennsylvanian Unit O-9-1178Pegasus (Pennsylvanian)COG Operating LLCNot on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 2,870 ft elevation.Download CSV →

FormationMD ftSubsea
San Andres4,857-1,987
Spraberry7,651-4,781
Wolfcamp9,108-6,238
Strawn10,116-7,246
Atoka10,242-7,372
Pennsylvanian10,314-7,444

Perforations

Perforated and open-hole intervals.

FromToType
7,6537,837Perforated
8,4578,526Perforated
10,32610,396Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37539417.5500 S
8.6254,872111,400 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
00Jun 2, 2010Feb 13, 1998Yes
00Mar 20, 1998Feb 13, 1998Yes
00Mar 12, 1998May 5, 1992Yes
00May 29, 1992May 5, 1992Yes
00May 13, 1992——

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 filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its search.

Find logs withinmiles of this well:List →Map →

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

0
bbl, last 12 reported months
497K
bbl, all reported
Aug 1998
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000076179H-1 InjectionCanceled Jun 9, 20031,0005,00010,326–10,396

MONTHLY INJECTED, BBL · H-10 · LAST 24 REPORTED MONTHS

Last 12 months 0 · prior 12 0

0119971998

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/46133191, documented in the API reference.