WELL · 42-461-40772 · DISTRICT 7

Pegasus Spraberry Unit #5908D

Y

Upton County · Pegasus (Ellenburger) field · Injection  · Vertical

Pegasus Spraberry Unit #5908D (API 42-461-40772) is a well in Upton County operated by Cog Operating LLC, completed February 20, 2019 and listed as injection on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued March 2, 2018, permitted to 15,500 ft.

Completion filings report 9 formation tops, including Yates, Grayburg, San Andres, Spraberry.

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

It holds an active disposal or injection permit, with 2.71M barrels injected in the 12 months reported through August 2025; TexNet located 1 M2+ earthquakes within 10 km over the last two years.

Operator of record

COG Operating LLC

Midland, TX · P-5 Y, filed May 4, 2026 · 4,568 permits on file · (432) 853-2355

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore scheduleCOG Operating LLC
Production reportsnone
Latest permitCOG Operating LLCMar 2, 2018
15,500
total depth, ft
2
permits on file
Mar 2, 2018
last permit issued
Feb 20, 2019
completed
0
cumulative oil, bbl
0
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Nov 2018 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Feb 20, 2019
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

31.594197, -102.115092

OpenStreetMap → ·  Google Maps →

Permit surface location from the RRC GIS record, in Upton County.

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 2 wells in total, so volumes are shared.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Pegasus Spraberry Unit O-9-20239Pegasus (Ellenburger)COG Operating LLC200Nov 2018 – Jul 2026

No volumes reported on these leases in the last three years.

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
837008-98DrillCOG Operating LLCMay 10, 2018Mar 2, 2018Dec 11, 201815,500
837008-99DrillCOG Operating LLCMar 1, 2018Mar 2, 2018Dec 11, 201815,500

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-20239————

Formation tops

As filed on W-2/G-1. Subsea from 2,842 ft elevation.Download CSV →

FormationMD ftSubsea
Yates2,685157
Grayburg4,066-1,224
San AndresSAN ANDRES - SALTWATER FLOW4,785-1,943
Spraberry7,679-4,837
Wolfcamp9,121-6,279
Strawn10,426-7,584
Devonian11,763-8,921
Fusselman12,485-9,643
Ellenburger13,103-10,261

Perforations

Perforated and open-hole intervals.

FromToType
13,29014,325Open hole

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,80017.51,450 S
9.6258,92212.25905 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 29, 2019May 28, 2019Yes

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.

Nearby wells and their tops

NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM

Draw a cross-section

This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Sinclair 57 H742-461-42589

0.3 KM · COG Operating LLC · Section with this well →

Yates2,690155
Grayburg4,741-1,896
San Andres4,767-1,922
Spraberry6,877-4,032
Fusselman—
Devonian—
Ellenburger—
Strawn—

9 TOPS · FIRST 8

Sinclair 57 H1342-461-42591

0.3 KM · COG Operating LLC · Section with this well →

Yates2,691154
Grayburg4,742-1,897
San Andres4,781-1,936
Spraberry6,881-4,036
Wolfcamp9,115-6,270
Ellenburger—
Strawn—
Fusselman—

9 TOPS · FIRST 8

Sinclair 57 H1242-461-42590

0.3 KM · COG Operating LLC · Section with this well →

Yates2,694151
Grayburg4,745-1,900
San Andres4,800-1,955
Spraberry6,887-4,042
Wolfcamp9,115-6,270
Fusselman—
Strawn—
Devonian—

9 TOPS · FIRST 8

Pegasus Spraberry Unit42-461-42579

0.3 KM · COG Operating LLC · Section with this well →

Yates2,689156
Grayburg4,742-1,897
San Andres4,772-1,927
Spraberry6,881-4,036
Devonian—
Fusselman—
Strawn—
Wolfcamp—

9 TOPS · FIRST 8

Sinclair 57 H642-461-42588

0.3 KM · COG Operating LLC · Section with this well →

Yates2,692153
Grayburg4,744-1,899
San Andres4,790-1,945
Spraberry6,885-4,040
Devonian—
Ellenburger—
Fusselman—
Strawn—

9 TOPS · FIRST 8

Pegasus Spraberry Unit42-461-42578

0.3 KM · COG Operating LLC · Section with this well →

Yates2,694151
Grayburg4,745-1,900
San Andres4,797-1,952
Spraberry6,887-4,042
Strawn—
Fusselman—
Ellenburger—
Devonian—

9 TOPS · FIRST 8

Sinclair 57 H542-461-42586

0.7 KM · COG Operating LLC · Section with this well →

Yates2,694150
Grayburg4,741-1,897
San Andres4,801-1,957
Spraberry6,882-4,038
Wolfcamp—
Strawn—
Fusselman—
Ellenburger—

9 TOPS · FIRST 8

Pegasus Spraberry Unit42-461-42577

0.7 KM · COG Operating LLC · Section with this well →

Yates2,695149
Grayburg4,742-1,898
San Andres4,799-1,955
Spraberry6,883-4,039
Ellenburger—
Wolfcamp—
Strawn—
Fusselman—

9 TOPS · FIRST 8

Beyond the permit record

RRC UIC permits · H-10 reported volumes

Injection

2.71M
bbl, last 12 reported months
20.1M
bbl, all reported
Aug 2025
reported through
UICKindStatusPermitted bbl/dMax psiZone ft
000116317H-1 InjectionActive30,0006,55013,100–14,600

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

Last 12 months 2,708,495 · prior 12 3,667,205(-26%)

0200K400K600K20242025

TexNet catalog via USGS

Seismicity near this well

1
M2+ events within 10 km, last 2 years
M2.0
largest

A proximity count, not an attribution. How to read 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/46140772, documented in the API reference.