WELL · 42-285-31600 · DISTRICT 2

Walter Koehn Gas Unit #1

Plugged

Lavaca County · Kinkler (5700) field · Vertical

Walter Koehn Gas Unit #1 (API 42-285-31600) is a plugged well in Lavaca County, plugged November 29, 2007, last operated by Petra Oleum Corp..

The RRC has issued one drilling permit, issued August 13, 1981, permitted to 9,016 ft.

It was permitted by Howell Drilling, Inc. and has since transferred to Petra Oleum Corp. on the wellbore schedule.

Operator of record

Petra Oleum Corp.

Permitted by Howell Drilling, Inc.; the EWA schedule now lists a different operator.

Based in: Midland, TX
P-5 status: Active (A)
P-5 last filed: Apr 9, 2026
Permits on file: 55
Phone: (432) 687-1033

SOURCE · RRC EWA WELLBORE SCHEDULE

What each RRC source says

Wellbore schedule	Petra Oleum Corp.
Production reports	Petra Oleum Corp.through Nov 2007
Latest permit	Howell Drilling, Inc.Aug 13, 1981

The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.

9,016: total depth, ft
1: permits on file
Aug 13, 1981: last permit issued
Oct 22, 1981: completed
0: cumulative oil, bbl
216K: cumulative gas, mcf

PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH May 2008

Regulatory status · RRC wellbore file

Schedule: OFF SCHEDULE
Completed: Oct 22, 1981
Shut in: —
Plugged: Nov 29, 2007

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
Walter Koehn Gas Unit G-2-96479	Kinkler (5700)	Petra Oleum Corp.	1	0	216K	Jan 1993 – May 2008

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.

1Howell Drilling, Inc.Jan 1993 → Dec 1993
2Parker & Parsley Development Co.Jan 1994 → Feb 1995
3Parker & Parsley Development L.PMar 1995 → May 1996
4Costilla Petroleum CorporationJun 1996 → Jan 1997
5Costilla Energy, Inc.Feb 1997 → Apr 1997
6Petra Oleum Corp.May 1997 → Nov 2007

Permits

Permit	Type	Operator	Received	Issued	Spud	Depth
130103-99	Drill	Howell Drilling, Inc.	Aug 13, 1981	Aug 13, 1981	—	9,016

Completions

Completed	Lease	Field	Operator	Status	Depth
—	— G-2-96479	—	—	—	—

Perforations

Perforated and open-hole intervals.

From	To	Type
5,691	5,695	Perforated

Casing

Strings as reported, shallowest first.

Casing in	Set at	Hole in	Cement
10.75	513	14.5	370 S
2.375	5,608	—	—
5.5	5,810	8.75	1,225 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	Jan 12, 1984	Nov 6, 1981	—

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 42-285-31600 → W-2, G-1, plugging reports, as PDFs
Completion packets for 42-285-31600 → 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/28531600, documented in the API reference.