TEXAS · WELLS · MIDLAND COUNTY · PEGASUS SPRABERRY UNIT LEASE · API 42-329-43864 · DISTRICT 6E

Pegasus Spraberry Unit #1004MH

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

Pegasus Spraberry Unit #1004MH (API 42-329-43864) is a horizontal well in Midland County operated by Cog Operating LLC, completed April 17, 2020 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued November 18, 2019, permitted to 8,130 ft.

Completion filings report 9 formation tops, including Santa Rosa, Yates, Seven Rivers, Queen.

Its lease has reported 12.2M barrels of oil and 20.4M mcf of gas since May 2010, last reporting volume in April 2026. The lease carries 97 wells, so these are lease totals, not this well alone.

Operator of record

COG Operating LLC

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 operator Watch Midland County

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	COG Operating LLC
Production reports	COG Operating LLCthrough Apr 2026
Latest permit	COG Operating LLCNov 18, 2019

8,130: total depth, ft
1: permits on file
Nov 18, 2019: last permit issued
Apr 17, 2020: completed
12.2M: cumulative oil, bbl
20.4M: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2010 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Apr 17, 2020
Shut in: —
Plugged: —

Operator's P-5 on the schedule: Active (A)

Surface location

31.680693, -102.134636 NAD27, as filed

31.680826, -102.135051 WGS84

Google Maps ↗

Permit surface location from the RRC GIS record, referenced to NAD27 as the RRC files it; the WGS84 pair is the same point through NOAA's NADCON grid, and the map link uses it, in Midland County.

Wells nearby

Withinmiles

Every well with a location on file around this one, in any state, nearest first.

Open the full map →

Texas locations come from drilling permits, so most older Texas wells have none and are not listed.

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

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Pegasus Spraberry Unit O-9-17147	Pegasus (Consolidated)	COG Operating LLC	97	12.2M	20.4M	May 2010 – Apr 2026

Oil, barrels lease total

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

Gas, mcf lease total

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

Chain of custody

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

1COG Operating LLCMay 2010 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
859058-99	Drill	COG Operating LLC	Nov 12, 2019	Nov 18, 2019	Nov 28, 2019	12,000

Completions

Completed	Lease	Field	Operator	Status	Depth
Apr 17, 2020	Pegasus Spraberry Unit O-9-17147	Pegasus (Consolidated)	COG Operating LLC	Producing	8,130

Formation tops

As filed on W-2/G-1. Subsea from 2,868 ft elevation.Download CSV →

Formation	MD ft	Subsea
Santa Rosa	815	2,053
Yates	2,779	89
Seven Rivers	2,900	-32
Queen	3,000	-132
Grayburg	3,851	-983
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO	4,605	-1,737
Glorieta	5,298	-2,430
Clear ForkCLEARFORK	6,816	-3,948
Spraberry	7,763	-4,895
SpraberrySPRABERRY UPPER-DEAN	7,950	-5,082

Perforations

Perforated and open-hole intervals.

From	To	Type
8,369	17,412	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
13.375	500	17.5	508 S
9.625	7,437	12.25	630 S
5.5	17,530	8.5	1,940 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 →

Suffix	RRC record date	W-2 / G-1 date	Logs referenced
00	Nov 9, 2020	Oct 12, 2020	Yes

Well logs

1 log loaded from the RRC's log index, the latest received Jan 27, 2023. Gamma ray. These are the logs loaded into Petrora from the Railroad Commission's inventories, not necessarily every log run on the well. The RRC holds the files; each opens from its log search for the well. The kind is the RRC's description of the log; the interval is the one filed for it.

Open the RRC's log search for this well ↗

Logas described	Files	Intervalft, as filed	Datereceived	SizeMB
Gamma Ray	TIFF	from 8,405	Jan 27, 2023	16.6

Find logs withinmiles of this well:List →Map →

Search the well logs loaded into Petrora →

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.

Wellbore filings for 42-329-43864 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-329-43864 → scanned completion filings

The logs loaded for this well are under Well logs, with the RRC's log search for it.

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 neighbors, subsea-aligned so they line up regardless of surface terrain.

Open the cross-section →

Pegasus Spraberry Unit42-329-43869

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

Santa Rosa	815	2,053
Yates	2,779	89
Seven Rivers	3,000	-132
Queen	3,687	-819
Grayburg	4,000	-1,132
San Andres	4,605	-1,737
Glorieta	5,298	-2,430
Clear Fork	6,814	-3,946

10 TOPS · FIRST 8

Pegasus Spraberry Unit42-329-43870

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

Santa Rosa	815	2,053
Yates	2,779	89
Seven Rivers	3,000	-132
Queen	3,687	-819
Grayburg	4,000	-1,132
San Andres	4,605	-1,737
Glorieta	5,267	-2,399
Clear Fork	6,815	-3,947

10 TOPS · FIRST 8

Yellow Belly42-329-40378

2.0 KM · Apache Corporation · Section with this well →

Santa Rosa	1,140	1,714
Yates	2,532	322
Seven Rivers	3,100	-246
Queen	3,922	-1,068
Grayburg	4,638	-1,784
San Andres	4,834	-1,980
Glorieta	6,035	-3,181
Clear Fork	6,904	-4,050

10 TOPS · FIRST 8

Pegasus Field Unit 342-329-43871

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

Santa Rosa	933	1,948
Yates	2,899	-18
Seven Rivers	3,200	-319
Queen	3,667	-786
Grayburg	4,297	-1,416
San Andres	4,807	-1,926
Glorieta	5,421	-2,540
Clear Fork	6,903	-4,022

10 TOPS · FIRST 8

Pegasus Field Unit 342-329-43872

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

Santa Rosa	933	1,948
Yates	2,735	146
Seven Rivers	3,000	-119
Queen	4,002	-1,121
Grayburg	4,294	-1,413
San Andres	4,712	-1,831
Glorieta	5,378	-2,497
Clear Fork	6,945	-4,064

10 TOPS · FIRST 8

Yellow Belly42-329-40367

2.1 KM · Apache Corporation · Section with this well →

Santa Rosa	1,150	1,706
Yates	2,551	305
Seven Rivers	3,123	-267
Queen	3,928	-1,072
Grayburg	4,668	-1,812
San Andres	4,832	-1,976
Glorieta	6,022	-3,166
Clear Fork	6,905	-4,049

10 TOPS · FIRST 8

Yellow Belly42-329-40353

2.2 KM · Apache Corporation · Section with this well →

Santa Rosa	1,138	1,720
Yates	2,539	319
Seven Rivers	3,100	-242
Queen	3,922	-1,064
Grayburg	4,638	-1,780
San Andres	4,834	-1,976
Glorieta	6,035	-3,177
Clear Fork	6,920	-4,062

10 TOPS · FIRST 8

Windham TXL C842-329-42088

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

Santa Rosa	903	1,934
Yates	1,325	1,512
Seven Rivers	2,022	815
Queen	4,044	-1,207
Grayburg	4,382	-1,545
San Andres	4,692	-1,855
Glorieta	5,391	-2,554
Clear Fork	6,944	-4,107

10 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/32943864, documented in the API reference.