OPERATORS · RRC 950743 · P-5 STATUS Y

Zilkha Engy Co

Houston, TX

Zilkha Engy CO has filed no drilling permits in the past 12 months; its most recent permit was issued December 3, 1997.

The RRC wellbore file lists 3 wells under its operatorship.

25 drilling permits have been issued to this operator number since 1987; its P-5 organization report was last filed April 3, 1998.

0: permits, last 12 months
—: vs prior 12 months (0)
0: counties, 12 months
0: producing wells, of 3 of record
0: leases it reports
—: horizontal, 12 months

WINDOWS ON THE RRC ISSUE DATE · COMPUTED OCT 29, 2026

From permit to spud

FROM THE DATES ON ITS W-1 PERMITS · ALL TIME

A permit is a plan, not a well. These figures count only permits old enough to have spudded, six months and more, and read the spud, cancel, and expiry dates the RRC records on each one.

40%: spud rate · 10 of 25 mature permits
26: median days permit to spud · middle half 16–54
0: spuds, last 180 days
0%: cancelled · 0 permits
15: expired undrilled
2: permits a year over 11 active years

Where

Counties by permits in the last 12 months, with all-time permits and current wells of record there.

County	12 mo	All time	Wells	Last
High IS-LB county →	—	8	0	Dec 3, 1997
Goliad county →	—	5	2	Apr 5, 1988
Matagorda county →	—	3	0	Jun 1, 1992
Liberty county →	—	2	1	Dec 18, 1990
Cameron county →	—	1	0	Mar 27, 1990
Hidalgo county →	—	1	0	Nov 2, 1990
Jefferson county →	—	1	0	Nov 17, 1997
Karnes county →	—	1	0	Sep 18, 1987
Kleberg county →	—	1	0	Feb 11, 1991
Lavaca county →	—	1	0	Jul 1, 1987
Montgomery county →	—	1	0	Sep 24, 1990

All 25 permits, searchable → · Leases it reports → · On the map →

Formations in its completed wells

Tops reported on completion filings for wells it operates. RRC wellbore file. About tops →

Formation	Wells	Permitted last 3 yrs
Wilcox	2	0
Yegua	2	0
Frio	2	0
Vicksburg	1	0
Miocene (undifferentiated)	1	0

Production by month

PDQ LEASE REPORTS · REPORTED THROUGH APR 2026

Barrels on leases where this operator filed the production report. Lease-level by design; the latest months are revised upward as late reports arrive. How production is reported →

0: bbl oil, last 12 reported months
—: vs the 12 months before
0: mcf gas incl. casinghead, last 12
0: bbl oil since reporting began

No lease production reported under this operator number in the last three years.

Beyond the permit record

RRC wellbore file

Wells of record

3: on the schedule
0: producing
0: shut in
0: injection
0: temp. abandoned
3: plugged

How it got them

1: permitted itself
1: acquired from others
8: permitted, now run by others

Acquired means the well's permit names a different operator than the schedule does today. Transfers and operator numbers →

Permit types

Last 12 months against the prior 12, and all time. A type opens the permit history filtered to it. What the types mean →

Type	12 mo	Prior 12	All time
Drill	0	0	18
Recompletion	0	0	7

Fields

RRC regulatory fields with the most wells of record under this operator. The field opens its page; the count opens this operator's wells in it.

Field	Wells	Producing
Merchant NE (EY-1B)60561750	1	0
Perdido Creek (Yegua)70578500	1	0
Wildcat4001	1	0

P-5 organization report

As registered with the RRC. About the P-5 →

Registration: Status code Y; Last filed Apr 3, 1998

Address: 4 E Greenway PLZ; Houston, TX 77046

Officers and agents: Holmes, John B. Jr. · President; Juneau, J. Bradley · Vice President; Mevs, Tracy P. · Treasurer

Latest permits

NEWEST FIRST BY ISSUE DATE · FILED OR ON WELLS IT NOW OPERATES

Permit	Seen	Issued	Operator	County	Lease / well	Depth	API
470116	Dec 3, 1997	Dec 3, 1997	Zilkha Energy Company	High IS-LB	HI 10-L (TX S/L M-96143) #1	12,550	70830358
470115	Nov 17, 1997	Nov 17, 1997	Zilkha Energy Company	Jefferson	HI 11-L (TX S/L M-97275) #2	12,600	24530350
451827	Aug 22, 1996	Aug 22, 1996	Zilkha Energy Company	High IS-LB	HI 11-L (TX S/L M-97275) #2	15,000	70830350
451827	Aug 22, 1996	Aug 22, 1996	Zilkha Energy Company	High IS-LB	HI 11-L (TX S/L M-97275) #2	13,713	70830350
448926	Jun 5, 1996	Jun 5, 1996	Zilkha Energy Company	High IS-LB	HI 10-L (TX S/L M-96143) #2	11,000	70830345
448925	Jun 5, 1996	Jun 5, 1996	Zilkha Energy Company	High IS-LB	HI 11-L (TX S/L M-97275 #1	11,000	70830344
448925	Jun 5, 1996	Jun 5, 1996	Zilkha Energy Company	High IS-LB	HI 11-L (TX S/L M-97275 #1	12,700	70830344
448118	May 14, 1996	May 14, 1996	Zilkha Energy Company	High IS-LB	HI 10-L (TX S/L M-96142) #1	11,000	70830343
448118	May 14, 1996	May 14, 1996	Zilkha Energy Company	High IS-LB	HI 10-L (TX S/L M-96142) #1	11,000	70830343
399500	Jun 1, 1992	Jun 1, 1992	Zilkha Energy Company	Matagorda	Lewis #1	6,500	32131500
398614	May 27, 1992	May 27, 1992	Zilkha Energy Company	Matagorda	Lewis #4	6,885	32130845
386103	Mar 25, 1991	Mar 25, 1991	Zilkha Energy Company	Matagorda	Lewis, J. C. #5	6,800	32131655
384318	Feb 11, 1991	Feb 11, 1991	Zilkha Energy Company	Kleberg	Fimble #1	12,053	27300805
382540	Dec 18, 1990	Dec 18, 1990	Zilkha Energy Company	Liberty	Richardson, George #1	10,500	29132119
382540	Dec 18, 1990	Dec 18, 1990	Zilkha Energy Company	Liberty	Richardson, George #1	10,500	29132119

Full permit history →

About this data

Registration from the RRC P-5 organization report, refreshed weekly. Permits from the OGA049M master and daily daf420 files; wells of record from the EWA wellbore schedule; production from PDQ lease reports at the last vintage; disposal from UIC permits and H-10 reports. Summary figures are rebuilt nightly.

Developers: this page as JSON is GET /v1/data/operators/tx/950743, documented in the API reference.