TEXAS · WELLS · MIDLAND COUNTY · TXL HOLZGRAF Z2 LEASE · API 42-329-44615 · DISTRICT 6E

TXL Holzgraf Z2 #2306BH

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

Txl Holzgraf Z2 #2306BH (API 42-329-44615) is a horizontal well in Midland County operated by Cog Operating LLC, completed August 28, 2021 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued January 21, 2021, permitted to 9,610 ft.

Completion filings report 10 formation tops, including Santa Rosa, Rustler, Yates, Seven Rivers.

Its lease has reported 541K barrels of oil and 2.79M mcf of gas since August 2021, last reporting volume in April 2026.

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 LLCJan 21, 2021

9,610: total depth, ft
1: permits on file
Jan 21, 2021: last permit issued
Aug 28, 2021: completed
541K: cumulative oil, bbl
2.79M: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Aug 2021 THROUGH Apr 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Aug 28, 2021
Shut in: —
Plugged: —

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

Surface location

31.674886, -102.177435 NAD27, as filed

31.675019, -102.177851 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; this well is the only one on it.Why →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
TXL Holzgraf Z2 O-9-21454	Pegasus (Consolidated)	COG Operating LLC	1	541K	2.79M	Aug 2021 – Apr 2026

Gas, mcf lease total

Last 12 months 463,893 · prior 12 540,027(-14%)

Oil, barrels lease total

Last 12 months 48,010 · prior 12 53,725(-11%)

Chain of custody

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

1COG Operating LLCAug 2021 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
867092-99	Drill	COG Operating LLC	Jan 15, 2021	Jan 21, 2021	Jan 25, 2021	12,000

Completions

Completed	Lease	Field	Operator	Status	Depth
Aug 28, 2021	TXL Holzgraf Z2 O-9-21454	Pegasus (Consolidated)	COG Operating LLC	Producing	9,610

Formation tops

As filed on W-2/G-1. Subsea from 2,888 ft elevation.Download CSV →

Formation	MD ft	Subsea
Santa Rosa	1,140	1,748
Rustler	2,002	886
Yates	3,122	-234
Seven Rivers	3,382	-494
Queen	4,058	-1,170
Grayburg	4,483	-1,595
San AndresSAN ANDRES - HIGH FLOWS, H2S, CO	5,086	-2,198
Glorieta	5,771	-2,883
Clear ForkCLEARFORK	7,293	-4,405
Spraberry	8,070	-5,182

Perforations

Perforated and open-hole intervals.

From	To	Type
9,583	25,121	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
13.375	471	17.5	525 S
9.625	8,900	12.25	2,545 S
5.5	25,209	8.5	3,955 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	Jan 4, 2022	Dec 10, 2021	Yes

Well logs

1 log loaded from the RRC's log index, the latest received Feb 19, 2024. Neutron. 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
Neutron	TIFF	from 9,629	Feb 19, 2024	14.1

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 42-329-44615 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-329-44615 → 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 →

TXL Holzgraf Z142-329-44614

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

Santa Rosa	867	2,021
Rustler	1,722	1,166
Yates	2,816	72
Seven Rivers	3,000	-112
Queen	3,720	-832
Grayburg	4,000	-1,112
San Andres	4,781	-1,893
Glorieta	5,428	-2,540

10 TOPS · FIRST 8

TXL Holzgraf Z342-329-44613

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

Santa Rosa	1,140	1,748
Rustler	2,002	886
Yates	3,122	-234
Seven Rivers	3,382	-494
Queen	4,058	-1,170
Grayburg	4,483	-1,595
San Andres	5,086	-2,198
Glorieta	5,771	-2,883

10 TOPS · FIRST 8

TXL Holzgraf Z442-329-44612

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

Santa Rosa	1,140	1,748
Rustler	2,002	886
Yates	3,122	-234
Seven Rivers	3,382	-494
Queen	4,058	-1,170
Grayburg	4,483	-1,595
San Andres	5,086	-2,198
Glorieta	5,771	-2,883

10 TOPS · FIRST 8

TXL Holzgraf Z542-329-44611

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

Santa Rosa	1,140	1,748
Rustler	2,002	886
Yates	3,122	-234
Seven Rivers	3,382	-494
Queen	4,058	-1,170
Grayburg	4,483	-1,595
San Andres	5,086	-2,198
Glorieta	5,771	-2,883

10 TOPS · FIRST 8

Pegasus Field Unit 342-329-43872

2.0 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

Pegasus Field Unit 342-329-43871

2.0 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

Apache Flats SWD42-329-47379

2.0 KM · Discovery Operating, Inc. · Section with this well →

Santa Rosa	218	2,665
Rustler	1,748	1,135
Yates	2,857	26
Seven Rivers	3,050	-167
Queen	3,857	-974
Grayburg	4,461	-1,578
San Andres	4,629	-1,746
Clear Fork	—

10 TOPS · FIRST 8

TXL State R A142-329-42927

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

Santa Rosa	813	2,064
Yates	2,816	61
Seven Rivers	3,001	-124
Queen	3,765	-888
Grayburg	4,300	-1,423
San Andres	4,774	-1,897
Glorieta	5,259	-2,382
Clear Fork	7,000	-4,123

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/32944615, documented in the API reference.