TEXAS · WELLS · MIDLAND COUNTY · API 42-329-32724 · DISTRICT 6E

Pegasus Spraberry Unit #161

Shut in

Midland County · Pegasus (Consolidated) field · Shut In  · Directional · Sidetrack

Pegasus Spraberry Unit #161 (API 42-329-32724) is a well in Midland County operated by Cog Operating LLC, completed October 5, 1993 and listed as shut in on the RRC schedule, shut in November 1, 2017.

The RRC has issued 2 drilling permits (amended once) between 1992 and 1993, permitted to 10,859 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 4 formation tops, including San Andres, Spraberry, Strawn, Pennsylvanian.

Its 3 leases have reported 15.2M barrels of oil and 23.2M mcf of gas since January 1993, last reporting volume in April 2026. The leases carry 205 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

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.Aug 9, 1993

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

10,859
total depth, ft
3
permits on file
Aug 9, 1993
last permit issued
Oct 5, 1993
completed
15.2M
cumulative oil, bbl
23.2M
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Oct 5, 1993
Shut in
Nov 1, 2017
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 205 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 Spraberry Unit O-9-4116Pegasus (Spraberry)COG Operating LLC1072.96M2.76MJan 1993 – Apr 2010
Windham, John "A" O-9-13484Pegasus (Pennsylvanian)Mobil Producing TX. & N.M. Inc.100Jul 1993 – —

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
414651-99RecompletionMobil Producing TX. & N.M. Inc.Aug 5, 1993Aug 9, 1993Sep 18, 19939,030
407277-98Drill · sidetrackMobil Producing TX. & N.M. Inc.Feb 8, 1993Dec 15, 1992—11,000
407277-99DrillMobil Producing TX. & N.M. Inc.Dec 15, 1992Dec 15, 1992Dec 29, 199211,000

Completions

CompletedLeaseFieldOperatorStatusDepth
Oct 5, 1993Pegasus Spraberry Unit O-9-17147Pegasus (Consolidated)COG Operating LLCShut In · shut in Nov 1, 201710,859
Oct 5, 1993Pegasus Spraberry Unit O-9-4116Pegasus (Spraberry)COG Operating LLCNot on Schedule—
Jul 27, 1993Windham John A O-9-13484Pegasus (Pennsylvanian)Mobil Producing TX. & N.M. Inc.Not on Schedule—

Formation tops

As filed on W-2/G-1. Subsea from 2,839 ft elevation.Download CSV →

FormationMD ftSubsea
San Andres4,674-1,835
Spraberry7,686-4,847
Strawn10,318-7,479
Pennsylvanian10,644-7,805

Perforations

Perforated and open-hole intervals.

FromToType
7,6868,575Perforated
10,68410,752Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.37540017.5500 S
8.6254,842111,215 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, 2010Nov 5, 1993Yes
00Dec 27, 1993Nov 5, 1993Yes
00Nov 22, 1993Aug 2, 1993Yes
00Oct 6, 1993Aug 2, 1993Yes
00Aug 17, 1993——

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.

Find logs withinmiles of this well:List →Map →

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

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