WELL · 42-479-35875 · DISTRICT 4

Welhausen, J.R. #2

Welhausen, J.R. #2 (API 42-479-35875) is a permitted well in Webb County filed by Chroma Operating, Inc.; no completion report is on file yet.

The RRC has issued 2 drilling permits between 1993 and 2009, permitted to 10,700 ft.

Completion filings report 4 formation tops, including Lobo Unconformity, Lobo 1, Lobo 6, Wills Point.

Operator of record

Chroma Operating, Inc.

Washington, DC · P-5 Y, filed Jun 3, 2016 · 42 permits on file · (202) 454-1135

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	none
Production reports	Arete Operating Company, LLCthrough Apr 2026
Latest permit	Chroma Operating, Inc.Dec 17, 2009

10,700: total depth, ft
2: permits on file
Dec 17, 2009: last permit issued
—: completed
0: cumulative oil, bbl
431K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Sep 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
Welhausen, J.R. G-4-146609	Vaquillas Ranch (Lobo Cons.)	Arete Operating Company, LLC	1	0	431K	Sep 1993 – Jul 2026

Gas, mcf lease total

Last 12 months 6,305 · prior 12 8,978(-30%)

Chain of custody

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

1Conoco Inc.Sep 1993 → Oct 1998
2North Central Oil Corp.Nov 1998 → Dec 2005
3Pogo Producing CompanyJan 2006 → Feb 2007
4White Oak Operating Company LLCApr 2007 → Sep 2019
5Chroma Operating, Inc.May 2008 → Nov 2014
6Arete Operating Company, LLCOct 2019 → Apr 2026

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
688010-99	Recompletion	Chroma Operating, Inc.	Nov 30, 2009	Dec 17, 2009	—	9,605
414058-99	Drill	Conoco Inc.	Jul 20, 1993	Jul 21, 1993	Jul 31, 1993	10,700

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— G-4-146609	—	—	—	—

Formation tops

As filed on W-2/G-1. Subsea from 504 ft elevation.Download CSV →

Formation	MD ft	Subsea
Lobo Unconformity	8,930	-8,426
Lobo 1	8,960	-8,456
Lobo 6	9,350	-8,846
Wills Point	9,590	-9,086

Perforations

Perforated and open-hole intervals.

From	To	Type
8,972	8,992	Perforated
9,366	9,376	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
9.625	532	12.25	250 S
8.75	8,046	8.75	240 S
2.875	9,668	6.125	365 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 27, 2010	May 21, 2010	—
Nov 5, 1993	Sep 29, 1993	Yes
Oct 4, 1993	—	—

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 42-479-35875 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-479-35875 → 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/47935875, documented in the API reference.