WELL · 42-461-42415 · DISTRICT 7

Blaze M8 #503BH

Y

Upton County · Pegasus (Consolidated) field · Producing  · Horizontal

Blaze M8 #503BH (API 42-461-42415) is a horizontal well in Upton County operated by Cog Operating LLC, completed June 3, 2024 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit (amended once), issued March 7, 2023, permitted to 12,000 ft.

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

Its lease has reported 143K barrels of oil and 374K mcf of gas since February 2024, last reporting in July 2026.

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 reportsCOG Operating LLCthrough Apr 2026
Latest permitCOG Operating LLCMar 7, 2023
12,000
total depth, ft
2
permits on file
Mar 7, 2023
last permit issued
Jun 3, 2024
completed
143K
cumulative oil, bbl
374K
cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Feb 2024 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule
ON SCHEDULE
Completed
Jun 3, 2024
Shut in
—
Plugged
—

Operator's P-5 on the schedule: X

Surface location

31.600323, -102.100932

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; this well is the only one on it.Why →

LeaseFieldReporting operatorWellsOil, bblGas, mcfReported
Blaze M8 O-9-22488Pegasus (Consolidated)COG Operating LLC1143K374KFeb 2024 – Jul 2026

Oil, barrels lease total

Last 12 months 41,061 · prior 12 101,607(-60%)

010K20K30K202420252026

Gas, mcf lease total

Last 12 months 189,083 · prior 12 185,294(+2%)

020K40K60K202420252026

Chain of custody

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

  1. 1COG Operating LLCJun 2024 → Apr 2026

Permits

PermitTypeOperatorReceivedIssuedSpudDepth
888582-98DrillCOG Operating LLCMar 14, 2023Mar 7, 2023Sep 16, 202312,000
888582-99DrillCOG Operating LLCFeb 27, 2023Mar 7, 2023Sep 13, 202312,000

Completions

CompletedLeaseFieldOperatorStatusDepth
—— O-9-22488————

Formation tops

As filed on W-2/G-1. Subsea from 2,843 ft elevation.Download CSV →

FormationMD ftSubsea
Yates3,061-218
Grayburg4,680-1,837
San AndresSAN ANDRES - SALTWATER FLOW4,717-1,874
Spraberry7,689-4,846
Wolfcamp9,144-6,301
Devonian——
Ellenburger——
Fusselman——
Strawn——

Perforations

Perforated and open-hole intervals.

FromToType
9,96715,039Perforated

Casing

Strings as reported, shallowest first.

Casing inSet atHole inCement
13.3751,04417.5850 S
9.6258,88012.251,500 S
5.515,1328.52,280 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
00Nov 24, 2025Sep 3, 2024—
00Apr 23, 2024Apr 9, 2024Yes

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 →

Blaze M742-461-42414

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

Yates3,066-193
Grayburg4,690-1,817
San Andres4,724-1,851
Spraberry7,683-4,810
Strawn—
Devonian—
Ellenburger—
Fusselman—

9 TOPS · FIRST 8

Blaze M942-461-42416

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

Yates3,059-216
Grayburg4,678-1,835
San Andres4,716-1,873
Spraberry7,684-4,841
Wolfcamp9,144-6,301
Ellenburger—
Fusselman—
Strawn—

9 TOPS · FIRST 8

Blaze M642-461-42413

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

Yates3,068-195
Grayburg4,700-1,827
San Andres4,730-1,857
Spraberry7,693-4,820
Devonian—
Wolfcamp—
Strawn—
Fusselman—

9 TOPS · FIRST 8

Blaze M542-461-42412

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

Yates3,070-229
Grayburg4,709-1,868
Grayberg4,721-1,880
San Andres4,740-1,899
San Andres4,755-1,914
Spraberry7,696-4,855
Ellenburger—
Devonian—

11 TOPS · FIRST 8

Blaze M442-461-42411

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

Yates2,687154
Grayburg4,706-1,865
San Andres4,739-1,898
Spraberry7,702-4,861
Wolfcamp9,145-6,304
Fusselman—
Strawn—
Ellenburger—

9 TOPS · FIRST 8

Blaze M342-461-42410

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

Yates2,686155
Grayburg4,721-1,880
San Andres4,755-1,914
Spraberry6,772-3,931
Wolfcamp—
Strawn—
Fusselman—
Ellenburger—

9 TOPS · FIRST 8

Blaze M242-461-42409

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

Yates2,686155
Grayburg4,723-1,882
San Andres4,755-1,914
Spraberry7,710-4,869
Devonian—
Wolfcamp—
Strawn—
Fusselman—

9 TOPS · FIRST 8

Blaze M142-461-42408

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

Yates2,686155
Grayburg4,730-1,889
San Andres4,763-1,922
Spraberry7,711-4,870
Wolfcamp9,119-6,278
Devonian—
Ellenburger—
Strawn—

9 TOPS · FIRST 8

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/46142415, documented in the API reference.