Petrora

OPERATORS · RRC 253275  · P-5 STATUS Y

EP Oper Co

Dallas, TX

Watch this operator

EP Oper CO has filed no drilling permits in the past 12 months; its most recent permit was issued February 24, 1993.

The RRC wellbore file lists 147 wells under its operatorship.

568 drilling permits have been issued to this operator number since 1977; its P-5 organization report was last filed January 5, 1993.

0
permits, last 12 months
—
vs prior 12 months (0)
0
counties, 12 months
0
producing wells, of 147 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.

39%
spud rate · 219 of 568 mature permits
20
median days permit to spud · middle half 9–46
0
spuds, last 180 days
0%
cancelled · 0 permits
344
expired undrilled
36
permits a year over 16 active years

Where

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

County12 moAll timeWellsLast
Henderson county →—12517Nov 13, 1992
Harrison county →—7011Dec 1, 1992
Wise county →—489Jan 11, 1993
Hardeman county →—3213Jan 24, 1992
Borden county →—283Nov 16, 1990
Gregg county →—221Feb 8, 1993
Wharton county →—222Dec 4, 1991
Glasscock county →—163May 4, 1990
Freestone county →—152Oct 16, 1992
Yoakum county →—150Aug 10, 1992
Colorado county →—132Feb 24, 1993
Montague county →—121Apr 8, 1991
Howard county →—110May 23, 1990
Webb county →—103Nov 13, 1990
Atascosa county →—91Dec 1, 1992
Midland county →—92Dec 12, 1990
Edwards county →—80Aug 27, 1985
Grayson county →—81Mar 20, 1991
Callahan county →—65Mar 8, 1988
Eastland county →—69Nov 9, 1990
Smith county →—60Oct 3, 1991
Ward county →—62Feb 18, 1988
Jack county →—57Nov 30, 1992
Stephens county →—55Oct 16, 1992
Throckmorton county →—52Oct 6, 1988
Upton county →—53Feb 23, 1990
Jackson county →—40Dec 1, 1992
Baylor county →—30Aug 28, 1987
Karnes county →—30Jul 12, 1991
Reagan county →—30Oct 16, 1987
Foard county →—20Apr 21, 1988
Goliad county →—23Oct 24, 1989
Haskell county →—20Apr 22, 1986
Houston county →—20Nov 16, 1987
Lavaca county →—22Dec 28, 1988
Leon county →—22Jul 5, 1990
Martin county →—20Jul 29, 1985
Maverick county →—20Nov 18, 1992
Oldham county →—20May 14, 1987
Victoria county →—20Jan 7, 1988
Anderson county →—12Feb 13, 1992
Concho county →—10Oct 23, 1985
Cooke county →—10Nov 21, 1985
Cottle county →—10Jun 29, 1982
Duval county →—10Jun 1, 1987
Galveston county →—10Feb 5, 1986
Jim Hogg county →—10Jan 17, 1986
Lipscomb county →—10Nov 17, 1987
Lynn county →—10Oct 24, 1985
Palo Pinto county →—16Aug 5, 1991
Parker county →—14Sep 13, 1988
Randall county →—10Apr 15, 1985
Reeves county →—10Mar 15, 1988
Roberts county →—10Dec 14, 1989
Sterling county →—11Aug 12, 1987
Tom Green county →—10Jan 14, 1986
Van Zandt county →—10Jul 17, 1986
Wilbarger county →—10Dec 4, 1985

All 568 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
Pettit1570
Travis Peak1570
Rodessa910
Caddo520
BMA490
Cotton Valley490
Atoka390
Massive Anhydrite (marker)350
James Lime320
Spraberry310
Wolfcamp270
Yates260
San Andres260
Mississippian230
Yegua230

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

147
on the schedule
0
producing
0
shut in
0
injection
0
temp. abandoned
90
plugged

How it got them

35
permitted itself
55
acquired from others
297
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 18
0
permitted bbl/day, active
0
bbl injected, last 12 reported months
Jun 2025
reported through

By county

Howard0 active0 bbl/d
Sutton0 active0 bbl/d
Haskell0 active0 bbl/d
DE Witt0 active0 bbl/d
Shackelford0 active0 bbl/d
Stephens0 active0 bbl/d
Midland0 active0 bbl/d
Eastland0 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
Drill00471
Recompletion0082
Other008
Field transfer004
Reenter003

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.

FieldWellsProducing
Whelan (Travis Peak Prorated)9678975070
Eastland County Regular2735800160
Ivadell (Miss)4483450050
Tecumseh (Gray Sand)8865630050
Opelika (Rodessa)6741649840
Pottsville (Marble Falls)7272133340
Boonsville (Bend Congl. Gas)1057452040
Opelika (Cotton Valley)6741616640
Tri-Cities (Travis Peak Lower)9110175030
Cheneyboro (Cotton Valley)1742750030
Deaton (Conglomerate)2376850030
Spraberry (Trend Area)8528030030

P-5 organization report

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

Registration
Status code Y
Last filed Jan 5, 1993
Address
1817 Wood Street
Dallas, TX 75201
Officers and agents
Fraley, F. W. III · Texas Resident Agent
Enserch Exploration, Inc. · Managing General Partner
Enserch Corporation · General Partner (W.c.mcord-Presi
Enserch Exploration Partners,ltd · Partner

Latest permits

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

PermitSeenIssuedOperatorCountyLease / wellDepthAPI
841346Jun 21, 2018Jun 21, 2018XTO Energy Inc.HarrisonAllen, W. H. Estate #39,20020331344
701847Nov 2, 2010Nov 2, 2010Cimarex Energy Co.HardemanGilliam, C. J. #38,98119730278
525311Nov 8, 2002Nov 8, 2002Key Energy of Colorado, Inc.HardemanOwens Unit #1HH9,00019730836
523528Sep 11, 2002Sep 11, 2002XTO Energy Inc.GreggWSGU7 (Horton-Dickson-14) #1410,51018330389
496781Jun 30, 2000Jun 30, 2000Canyon Oil & Gas Exploration LLCLavacaKupka, A. J. #114,05628531500
496781Jun 30, 2000Jun 30, 2000Canyon Oil & Gas Exploration LLCLavacaKupka, A. J. #1H14,05628531500
496781Jun 30, 2000Jun 30, 2000Canyon Oil & Gas Exploration LLCLavacaKupka, A. J. #1H14,10028531500
489539Nov 17, 1999Nov 17, 1999Cross Timbers Operating CompanyHendersonOgu (Saylors, M. A-5) #12912,27721330538
433230Feb 27, 1995Feb 27, 1995Enserch Exploration, IncFreestoneThompson, C.C. #112,85816130143
428064Oct 4, 1994Oct 4, 1994EP Operating Limited PartnershipWardEdwards, J. H. Est. -B- #17,18047530251
408856Feb 24, 1993Feb 24, 1993EP Operating CompanyColoradoHash McCreary #27,50008931870
406663Feb 8, 1993Feb 8, 1993EP Operating CompanyGreggWSGU3 (Kelly-3) #59,00018330998
407358Jan 11, 1993Jan 11, 1993EP Operating CompanyWiseDaggett -B- #26,50049701660
405701Dec 1, 1992Dec 1, 1992EP Operating CompanyJacksonHancock #15,10023932670
405697Dec 1, 1992Dec 1, 1992EP Operating CompanyAtascosaH.A. Schumann "a" Unit #611,00001333982

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/253275, documented in the API reference.