Petrora

OPERATORS · RRC 278846  · P-5 STATUS Y

Fossil Oper, Inc

Dallas, TX

Watch this operator

Fossil Oper, Inc has filed no drilling permits in the past 12 months; its most recent permit was issued March 13, 2015.

The RRC wellbore file lists 24 wells under its operatorship.

92 drilling permits have been issued to this operator number since 1994; its P-5 organization report was last filed October 5, 2018.

0
permits, last 12 months
—
vs prior 12 months (0)
0
counties, 12 months
0
producing wells, of 24 of record
28
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.

87%
spud rate · 80 of 92 mature permits
7
median days permit to spud · middle half 3–18
0
spuds, last 180 days
0%
cancelled · 0 permits
12
expired undrilled
4
permits a year over 22 active years

Where

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

County12 moAll timeWellsLast
Parker county →—455Aug 15, 2001
Palo Pinto county →—133Jan 25, 2002
Callahan county →—113May 22, 2001
Eastland county →—114Jun 30, 2000
Taylor county →—30Sep 24, 1999
Henderson county →—20Nov 22, 2002
Leon county →—28Mar 13, 2015
Navarro county →—21Apr 27, 2010
Concho county →—10Jan 26, 1999
Fisher county →—10Dec 8, 1997
Stonewall county →—10Aug 21, 1997

All 92 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
Caddo80
Strawn30
Atoka20
Smackover10
Palo Pinto10
Marble Falls10
Massive Anhydrite (marker)10
Pettit10

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
43.2K
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

24
on the schedule
0
producing
0
shut in
0
injection
0
temp. abandoned
22
plugged

How it got them

13
permitted itself
10
acquired from others
57
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 2
0
permitted bbl/day, active
0
bbl injected, last 12 reported months
Jun 2025
reported through

By county

Leon0 active0 bbl/d
Parker0 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
Drill0078
Reenter006
Recompletion005
Field transfer003

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
Hilltop Resort (Austin Chalk)4151510060
Wildcat1400160
Coleen (Strawn)1947669030
Tauren (Caddo Upper)8846207530
H. & R. (Bend Congl)3776250010
Lokey (Atoka 1250)5444366610
Moe (3800)6234850010
Nicholas (Duffer)6543350010
Costello NW. (Big Saline)2091030010
Hilltop Resort (Bossier)4151525010

P-5 organization report

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

Registration
Status code Y
Last filed Oct 5, 2018
Address
10455 Markison Road
Dallas, TX 75238
(972) 681-8047
Officers and agents
Wallen, Calvin A. III · President/Vice President

Latest permits

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

PermitSeenIssuedOperatorCountyLease / wellDepthAPI
804500Mar 13, 2015Mar 13, 2015Fossil Operating, Inc.LeonFossil Wildman Trust Unit No. 4 #9HH7,10028932158
787111Jun 18, 2014Jun 18, 2014Fossil Operating, Inc.LeonBelin #2HH7,00028931909
694825Apr 27, 2010Apr 27, 2010Fossil Operating, Inc.NavarroW.A. Howard #29,00034934919
690830Feb 11, 2010Feb 11, 2010Fossil Operating, Inc.NavarroW.A. Howard #18,00034934912
656025Mar 4, 2008Mar 4, 2008Gastar Exploration Texas, LPLeonGastar-Lone Oak Ranch #5HH15,00028931729
557284Feb 4, 2005Feb 4, 2005First Texas Gas, LPLeonKaufman, Gastar Fridkin, Ltd. #220,00028931455
557284Feb 4, 2005Feb 4, 2005First Source Gas, LPLeonKaufman, Gastar Fridkin, Ltd. #220,00028931455
525829Nov 22, 2002Nov 22, 2002Fossil Operating, Inc.HendersonCarver #17,60021330623
523198Aug 28, 2002Aug 28, 2002Fossil Operating, Inc.HendersonHarrison #1A7,60021330852
517084Jan 25, 2002Jan 25, 2002Fossil Operating, Inc.Palo PintoYeats #53,00036335059
516530Dec 31, 2001Dec 31, 2001Fossil Operating, Inc.Palo PintoYeats #74,20036335065
515866Dec 6, 2001Dec 6, 2001Fossil Operating, Inc.Palo PintoYeats #54,20036335059
512581Aug 15, 2001Aug 15, 2001Fossil Operating, Inc.ParkerBozzell #33,05036733384
509263May 22, 2001May 22, 2001Fossil Operating, Inc.CallahanHutchins #14,10005936569
505967Mar 1, 2001Mar 1, 2001Fossil Operating, Inc.Palo PintoYeats #44,20036334897

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/278846, documented in the API reference.