OPERATORS · RRC 875642 · P-5 STATUS Y

Ultramar Petro Ltd

Houston, TX

Ultramar Petro Ltd has filed no drilling permits in the past 12 months; its most recent permit was issued August 19, 1992.

The RRC wellbore file lists 11 wells under its operatorship.

88 drilling permits have been issued to this operator number since 1983; its P-5 organization report was last filed June 10, 1993.

0: permits, last 12 months
—: vs prior 12 months (0)
0: counties, 12 months
0: producing wells, of 11 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.

38%: spud rate · 33 of 88 mature permits
23: median days permit to spud · middle half 8–39
0: spuds, last 180 days
0%: cancelled · 0 permits
55: expired undrilled
10: permits a year over 9 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
Victoria county →	—	18	4	Nov 8, 1991
Brazos county →	—	13	0	Aug 19, 1992
Brazoria county →	—	10	0	Nov 27, 1991
Sterling county →	—	6	0	Apr 3, 1992
Atascosa county →	—	4	1	Mar 13, 1984
Burleson county →	—	4	0	Jan 31, 1991
Montgomery county →	—	4	0	Oct 17, 1990
Duval county →	—	3	0	Dec 12, 1985
Fayette county →	—	3	0	Apr 27, 1992
Gaines county →	—	3	0	Oct 28, 1987
Galveston-LB county →	—	3	0	Apr 22, 1987
Matagorda county →	—	2	0	May 22, 1991
Panola county →	—	2	2	Apr 22, 1987
Anderson county →	—	1	0	Jan 2, 1990
Galveston county →	—	1	0	Sep 23, 1986
Goliad county →	—	1	0	Mar 12, 1992
Grimes county →	—	1	1	Jan 29, 1990
Harris county →	—	1	0	Jun 25, 1984
Jim Hogg county →	—	1	1	Mar 26, 1991
Lynn county →	—	1	0	Oct 28, 1985
Madison county →	—	1	0	Feb 8, 1989
Midland county →	—	1	0	Apr 16, 1985
Milam county →	—	1	0	Aug 19, 1985
San Patricio county →	—	1	1	Nov 6, 1984
Shelby county →	—	1	0	May 7, 1984
Travis county →	—	1	0	Nov 25, 1985

All 88 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
Austin Chalk	14	1
Yegua	6	0
Canyon	5	0
Cisco	5	0
Wilcox	4	0
Miocene (undifferentiated)	3	0
Frio	3	0
Vicksburg	2	0
Sub-Clarksville	2	0
Queen City	2	0
Buda	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

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

How it got them

8: permitted itself
3: acquired from others
33: 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	71
Recompletion	0	0	15
Other	0	0	2

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
Bullock S Church S. (11400)13276675	1	0
Crown E. (Navarro)22011500	1	0
Fishers Reef (Frio 14)31028685	1	0
Helen Gohlke N. E. (Frio 3500)40234350	1	0
Helen Gohlke NE. (Miocene 1081)40234440	1	0
J. G. S. (Rodessa -C-)45034412	1	0
J. G. S. (Travis Peak 7140)45034850	1	0
Madisonville SW (Sub-Clksville)56597750	1	0
Mary Iris (Sinton)57918500	1	0
Mestena Grande (Pettus)60823425	1	0
Schroeder (3700)81559840	1	0

P-5 organization report

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

Registration: Status code Y; Last filed Jun 10, 1993

Address: 616 FM 1960 RD W #280; Houston, TX 77090

Officers and agents: C. T. Corporation Systems · Texas Resident Agent; Pickerill, Jerry L. · President; Bush, Robert G. · Vice President; Fisher, John Bradley · Vice President

Latest permits

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

Permit	Seen	Issued	Operator	County	Lease / well	Depth	API
467263	Sep 8, 1997	Sep 8, 1997	Tepee Petroleum Co., Inc.	Victoria	Dentler, Mary et AL #1	10,200	46932690
401200	Aug 19, 1992	Aug 19, 1992	Ultramar Oil and Gas Limited	Brazos	Riverside Campus #6H	10,000	04131656
398742	Apr 27, 1992	Apr 27, 1992	Ultramar Oil and Gas Limited	Fayette	Hoskins, Bobby #1H	10,000	14932619
398244	Apr 9, 1992	Apr 9, 1992	Ultramar Oil and Gas Limited	Brazos	Luza, Vince et AL #1H	9,500	04131613
397996	Apr 3, 1992	Apr 3, 1992	Ultramar Oil and Gas Limited	Sterling	Foster "34" #10	9,500	43132387
398001	Apr 2, 1992	Apr 2, 1992	Ultramar Oil and Gas Limited	Sterling	Gunter "35" #8	9,500	43132390
398000	Apr 2, 1992	Apr 2, 1992	Ultramar Oil and Gas Limited	Sterling	Gunter "35" #7	9,500	43132389
397999	Apr 2, 1992	Apr 2, 1992	Ultramar Oil and Gas Limited	Sterling	Gunter "25" #5	9,500	43132388
397998	Apr 2, 1992	Apr 2, 1992	Ultramar Oil and Gas Limited	Sterling	Glass "26" #4	9,500	43132385
397997	Apr 2, 1992	Apr 2, 1992	Ultramar Oil and Gas Limited	Sterling	Foster "34" #9	9,500	43132386
397461	Mar 12, 1992	Mar 12, 1992	Ultramar Oil and Gas Limited	Goliad	Perdido Land & Cattle Co. #1	6,000	17532647
396639	Feb 20, 1992	Feb 20, 1992	Ultramar Oil and Gas Limited	Brazos	Kuder, Willie #2H	10,000	04131464
396487	Feb 10, 1992	Feb 10, 1992	Ultramar Oil and Gas Limited	Brazos	Riverside Campus #5H	9,500	04131584
395347	Dec 23, 1991	Dec 23, 1991	Ultramar Oil and Gas Limited	Fayette	Keilers Company, Inc. #1H	10,000	14932566
395347	Dec 23, 1991	Dec 23, 1991	Ultramar Oil and Gas Limited	Fayette	Keilers Company, Inc. #1H	10,000	14932566

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/875642, documented in the API reference.