OPERATORS · RRC 569029  · P-5 STATUS Y

Miller, W. C. Oper Co

San Antonio, TX

Watch this operator

Miller, W. C. Oper CO has filed no drilling permits in the past 12 months; its most recent permit was issued May 12, 2010.

The RRC wellbore file lists 33 wells under its operatorship.

123 drilling permits have been issued to this operator number since 1987; its P-5 organization report was last filed July 4, 2026.

0
permits, last 12 months
—
vs prior 12 months (0)
0
counties, 12 months
0
producing wells, of 33 of record
25
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.

59%
spud rate · 73 of 123 mature permits
30
median days permit to spud · middle half 12–66
0
spuds, last 180 days
0%
cancelled · 0 permits
50
expired undrilled
5
permits a year over 23 active years

Where

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

County12 moAll timeWellsLast
Duval county →—479May 12, 2010
Karnes county →—161Mar 7, 2005
Wilson county →—151Dec 21, 2005
Atascosa county →—138Jan 9, 2007
McMullen county →—91Oct 5, 1994
Bee county →—82Oct 26, 1999
Jackson county →—45Dec 13, 2004
Victoria county →—41Jul 9, 1992
Kerr county →—20Dec 13, 1988
Starr county →—20Sep 26, 1989
Bastrop county →—10Jun 27, 1994
Goliad county →—10Jun 15, 1990
Webb county →—10Nov 13, 1995

All 123 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 →

FormationWellsPermitted last 3 yrs
Frio80
Carrizo40
Yegua20
Oakville10
Catahoula10
Miocene (undifferentiated)10

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
1.29M
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

33
on the schedule
0
producing
0
shut in
0
injection
0
temp. abandoned
28
plugged

How it got them

13
permitted itself
7
acquired from others
80
permitted, now run by others

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

RRC UIC permits · H-10 reported volumes

Disposal and injection

0
active UIC permits of 8
0
permitted bbl/day, active
0
bbl injected, last 12 reported months
Jun 2025
reported through

By county

Duval0 active0 bbl/d
Jackson0 active0 bbl/d

Permitted volume is a ceiling, not throughput. How to read it →

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 →

Type12 moPrior 12All time
Drill00110
Recompletion007
Reenter005
Reclass001

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.

P-5 organization report

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

Registration
Status code Y
Last filed Jul 4, 2026
CSGD/PG/PUR
Address
8700 Crownhill Suite 702
San Antonio, TX 78209
(210) 656-4900
Officers and agents
Miller, William C. · President/Vice President
Patten, June S. · Filing Agent

Latest permits

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

PermitSeenIssuedOperatorCountyLease / wellDepthAPI
695595May 12, 2010May 12, 2010Miller, W. C. Operating CompanyDuvalSerna, Refugio A #112,50013100766
651315Jan 25, 2008Jan 25, 2008Miller, W. C. Operating CompanyDuvalSerna, Refugio #62,25013100734
630571Jan 9, 2007Jan 9, 2007Miller, W. C. Operating CompanyAtascosaRollie Thompson Estate #11,80001334231
611198Dec 21, 2005Dec 21, 2005Miller, W. C. Operating CompanyWilsonZidek #23,00049332529
609188Nov 10, 2005Nov 10, 2005Miller, W. C. Operating CompanyWilsonZidek #13,00049332527
609050Nov 8, 2005Nov 8, 2005Miller, W. C. Operating CompanyAtascosaSchorsch #11,80001334210
558268Mar 7, 2005Mar 7, 2005Miller, W. C. Operating CompanyKarnesTurnbull #15,00025531508
553347Dec 13, 2004Dec 13, 2004Miller, W. C. Operating CompanyJacksonFowler, W. B. #64,81223931316
552060Oct 14, 2004Oct 14, 2004Miller, W. C. Operating CompanyKarnesGinther Trust & H. C. Warren #15,80025531503
550385Sep 29, 2004Sep 29, 2004Miller, W. C. Operating CompanyDuvalDuval County Ranch Company #13 F1,15013138739
550384Sep 15, 2004Sep 15, 2004Miller, W. C. Operating CompanyDuvalAdami, Ira Ray #390013138738
542898Mar 9, 2004Mar 9, 2004Miller, W. C. Operating CompanyWilsonFrerich #13,10049332519
539421Dec 12, 2003Dec 12, 2003Miller, W. C. Operating CompanyKarnesKimble #15,20025531485
538578Dec 2, 2003Dec 2, 2003Miller, W. C. Operating CompanyDuvalAdami, Ira Ray #21,40013138670
538576Dec 2, 2003Dec 2, 2003Miller, W. C. Operating CompanyDuvalAdami, Ira Ray #11,40013138669

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/569029, documented in the API reference.