WELL · 42-399-35616 · DISTRICT 7

Briggs #1

Runnels County · Cockatoo (Gardner) field · Producing · Vertical

Briggs #1 (API 42-399-35616) is a well in Runnels County operated by Window Operating CO. The, completed May 15, 2023 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued March 16, 2023, permitted to 4,900 ft.

Completion filings report 10 formation tops, including Mcmillian Sand, Palo Pinto, Morris Sand, Gardner Lime.

Its lease has reported 4.55K barrels of oil since May 2023, last reporting in July 2026.

Operator of record

Window Operating Co. The

Coleman, TX · P-5 Y, filed Jul 4, 2026 · 114 permits on file · (325) 636-3608

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Window Operating Co. The
Production reports	Window Operating Co., Thethrough Apr 2026
Latest permit	Window Operating Co., TheMar 16, 2023

4,900: total depth, ft
1: permits on file
Mar 16, 2023: last permit issued
May 15, 2023: completed
4.55K: cumulative oil, bbl
0: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · May 2023 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: May 15, 2023
Shut in: —
Plugged: —

Operator's P-5 on the schedule: Active

Surface location

32.017068, -99.937534

OpenStreetMap → · Google Maps →

Permit surface location from the RRC GIS record, in Runnels 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 →

Lease	Field	Reporting operator	Wells	Oil, bbl	Gas, mcf	Reported
Briggs O-9-22100	Cockatoo (Gardner)	Window Operating Co., The	1	4.55K	0	May 2023 – Jul 2026

Oil, barrels lease total

Last 12 months 1,327 · prior 12 1,717(-23%)

Chain of custody

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

1Window Operating Co., TheMay 2023 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
889022-99	Drill	Window Operating Co., The	Mar 14, 2023	Mar 16, 2023	Mar 30, 2023	4,900

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-9-22100	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 1,856 ft elevation.Download CSV →

Formation	MD ft	Subsea
McMillian Sand	2,920	-1,064
Palo PintoPALO PINTO LIME	3,664	-1,808
Morris Sand	3,894	-2,038
Gardner Lime	4,286	-2,430
Gardener Sand	4,325	-2,469
Canyon	—	—
Cisco	—	—
Coleman JunctionCOLEMAN JUNCTION - POSSIBLE WATE	—	—
King	—	—
Problem Zone - 5 Mile Radius Aro	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
4,325	4,330	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
8.625	174	12.25	125 S
4.5	4,652	7.875	325 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 →

Suffix	Filed	W-2 / G-1 date	Logs referenced
00	Jun 15, 2023	May 23, 2023	Yes

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 42-399-35616 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-399-35616 → scanned completion filings

Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward). 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 →

Lee42-399-35556

2.5 KM · Window Operating Co., The · Section with this well →

Coleman Junction	1,550	341
Palo Pinto	3,740	-1,849
Goen	4,200	-2,309
Gardner	4,382	-2,491
Cisco	—
Cambrian	—
Canyon	—
Strawn	—

10 TOPS · FIRST 8

Chambliss42-399-35529

3.0 KM · Window Operating Co., The · Section with this well →

Coleman Junction	1,120	792
Palo Pinto	3,786	-1,874
Canyon	3,796	-1,884
Strawn	3,940	-2,028
Gardner Sand	4,484	-2,572
Cisco	—
Cambrian	—
King	—

9 TOPS · FIRST 8

Colburn42-399-35544

3.3 KM · Window Operating Co., The · Section with this well →

Coleman Junction	1,120	798
Canyon	3,796	-1,878
Strawn	3,940	-2,022
Gardner Sand	4,456	-2,538
Problem Zone - 5 Mile Radius Aro	—
King	—
Cisco	—
Cambrian	—

Colburn42-399-35528

3.4 KM · Window Operating Co., The · Section with this well →

Coleman Junction	1,120	796
Canyon	3,796	-1,880
Strawn	3,940	-2,024
Gardner Sand	4,483	-2,567
Problem Zone - 5 Mile Radius Aro	—
Cisco	—
King	—
Cambrian	—

Harris42-399-35534

7.2 KM · Bridwell Oil Co. · Section with this well →

Coleman Junction	866	991
King	2,748	-891
Canyon	3,544	-1,687
Strawn	3,800	-1,943
Cambrian	—
Cisco	—
Problem Zone - 5 Mile Radius Aro	—

Ernst42-399-34763

9.3 KM · Lone Star Production · Section with this well →

King	2,838	-921
Palo Pinto	3,740	-1,823
Goen Lime	4,350	-2,433
Gardner SD	4,615	-2,698

Yates42-399-35605

10.1 KM · Cedar Oil Company · Section with this well →

King	2,859	-901
Cisco	3,010	-1,052
Canyon	3,290	-1,332
Strawn	—
Cambrian	—
Coleman Junction	—
Problem Zone - 5 Mile Radius Aro	—

Gray42-399-35590

10.5 KM · Cedar Oil Company · Section with this well →

King	2,050	-94
Canyon	3,465	-1,509
Cisco	3,670	-1,714
Strawn	4,220	-2,264
Cambrian	—
Coleman Junction	—
Problem Zone - 5 Mile Radius Aro	—

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/39935616, documented in the API reference.