WELL · 42-489-31198 · DISTRICT 4

Cox B F #4

Willacy County · LA Sal Vieja (Frio Cons) field · Producing · Vertical

Cox B F #4 (API 42-489-31198) is a well in Willacy County operated by Wagner Oil Company, completed July 14, 2009 and listed as producing on the RRC schedule.

The RRC has issued one drilling permit, issued March 11, 2008, permitted to 11,700 ft.

Completion filings report 3 formation tops, including Oberg, 10800 Sand, 10900 Sand.

No lease production has been reported under this well’s leases.

Operator of record

Wagner Oil Company

Fort Worth, TX · P-5 Y, filed Sep 4, 2025 · 278 permits on file · (800) 457-5332

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Wagner Oil Company
Production reports	Wagner Oil Companythrough Apr 2026
Latest permit	Wagner Oil CompanyMar 11, 2008

11,700: total depth, ft
1: permits on file
Mar 11, 2008: last permit issued
Jul 14, 2009: completed
0: cumulative oil, bbl
4.32M: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jul 2008 THROUGH Jul 2026

Regulatory status · RRC wellbore file

Schedule: ON SCHEDULE
Completed: Jul 14, 2009
Shut in: —
Plugged: —

Operator's P-5 on the schedule: Active

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
Cox, B F G-4-238711	LA Sal Vieja (Frio Cons)	Wagner Oil Company	1	0	4.32M	Jul 2008 – Jul 2026

Gas, mcf lease total

Last 12 months 49,093 · prior 12 39,161(+25%)

Chain of custody

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

1Wagner Oil CompanyJul 2008 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
656452-99	Drill	Wagner Oil Company	Feb 29, 2008	Mar 11, 2008	Apr 14, 2008	11,700

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— G-4-238711	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 38 ft elevation.Download CSV →

Formation	MD ft	Subsea
Oberg	10,720	-10,682
10800 Sand	10,890	-10,852
10900 Sand	11,078	-11,040

Perforations

Perforated and open-hole intervals.

From	To	Type
10,790	10,820	Perforated
10,790	11,158	Perforated
10,860	10,905	Perforated
10,920	10,990	Perforated
11,042	11,070	Perforated
11,130	11,158	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
9.625	2,485	12.25	700 S
7	10,523	8.75	200 S
4.5	11,590	6.125	145 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 →

Filed	W-2 / G-1 date	Logs referenced
Jul 31, 2013	Dec 4, 2012	—
Dec 12, 2008	Aug 22, 2008	—
Oct 4, 2008	Jul 24, 2008	Yes
Sep 11, 2008	—	—

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 42-489-31198 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-489-31198 → 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/48931198, documented in the API reference.