WELL · 42-503-39455 · DISTRICT 9

Willis #21

Willis #21 (API 42-503-39455) is a permitted well in Young County filed by Gibson, Lee Oil Company; no completion report is on file yet.

The RRC has issued 2 drilling permits between 1987 and 1988, permitted to 5,000 ft.

Completion filings report 3 formation tops, including Caddo, Marble Falls, Mississippian.

Its lease has reported 230 barrels of oil since January 1993, last reporting in July 2026.

Operator of record

Gibson, Lee Oil Company

Riverdale, CA · P-5 Y, filed Oct 8, 1993 · 5 permits on file

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	none
Production reports	Willis Operating Company, Inc.through Oct 2018
Latest permit	Gibson, Lee Oil CompanyNov 22, 1988

5,000: total depth, ft
2: permits on file
Nov 22, 1988: last permit issued
—: completed
230: cumulative oil, bbl
0: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: —
Shut in: —
Plugged: —

Surface location

No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.

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
Willis O-13-25370	Graham, East (Mississippian)	Willis Operating Company, Inc.	1	230	0	Jan 1993 – Jul 2026

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

Chain of custody

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

1Willis Operating Company, Inc.May 2012 → Oct 2018

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
353577-99	Recompletion	Gibson, Lee Oil Company	Nov 22, 1988	Nov 22, 1988	—	4,720
327469-99	Drill	Gibson, Lee Oil Company	Mar 6, 1987	Mar 6, 1987	—	5,000

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— O-13-25370	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 1,290 ft elevation.Download CSV →

Formation	MD ft	Subsea
Caddo	3,917	-2,627
Marble Falls	4,333	-3,043
MississippianMISSISSIPPI BARNETT	4,621	-3,331
MississippianMISSISSIPPI CHAPPEL	4,683	-3,393

Perforations

Perforated and open-hole intervals.

From	To	Type
4,644	4,720	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
8.625	400	12.25	250 S
4.5	4,889	7.875	200 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	Jul 10, 1987	Jun 4, 1987	Yes
00	Jun 11, 1987	—	—

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 42-503-39455 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-503-39455 → 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.

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/50339455, documented in the API reference.