Petrora

OPERATORS · RRC 460860  · P-5 STATUS Y

Killingsworth Oil Co

Longview, TX

Watch this operator

Killingsworth Oil CO has filed no drilling permits in the past 12 months; its most recent permit was issued July 21, 1994.

The RRC wellbore file lists 54 wells under its operatorship.

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

0
permits, last 12 months
—
vs prior 12 months (0)
0
counties, 12 months
0
producing wells, of 54 of record
6
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.

56%
spud rate · 10 of 18 mature permits
64
median days permit to spud · middle half 45–84
0
spuds, last 180 days
0%
cancelled · 0 permits
8
expired undrilled
2
permits a year over 8 active years

Where

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

County12 moAll timeWellsLast
Cass county →—1245Nov 22, 1991
Marion county →—58May 8, 1991
Freestone county →—11Jul 21, 1994

All 18 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
Massive Anhydrite (marker)30

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
126K
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

54
on the schedule
0
producing
0
shut in
0
injection
0
temp. abandoned
28
plugged

How it got them

2
permitted itself
17
acquired from others
12
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 42
0
permitted bbl/day, active
0
bbl injected, last 12 reported months
Jun 2025
reported through

By county

Cass0 active0 bbl/d
Marion0 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
Drill0012
Recompletion006

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
Kildare (Pettit)49204800280
Kildare49204001110
Rodessa-Jeff. Area (Dees Young)7782525030
Rodessa N. (Hill)7780933320
Rodessa (Anhydrite Lower)7780707020
Rodessa (Travis Peak)7780787510
Skeeters (Hill)8388750010
Haynes (Mitchell)3982966410
Winkler S.(cotton Valley Lime)9804230010
Kildare (Cotton Valley)4920420010
Kildare (Hill)4920460010
Rodessa (Gloyd North)7780735010

P-5 organization report

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

Registration
Status code Y
Last filed Mar 4, 2026
Oil operator
Address
Box 351
Longview, TX 75606
Officers and agents
Darby, John N. · President
Darby, Leah K. · Secretary/Treasurer

Latest permits

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

PermitSeenIssuedOperatorCountyLease / wellDepthAPI
486782Aug 20, 1999Aug 20, 1999Seagull Energy E&P Inc.FreestoneFerguson, J. R. Estate #110,25816130673
426062Jul 21, 1994Jul 21, 1994Killingsworth Oil Co.FreestoneFerguson, J. R. Estate #110,25816130673
393313Nov 22, 1991Nov 22, 1991Killingsworth Oil Co.CassOakland Corp Waterflood Unit #1146,20006730650
387471May 8, 1991May 8, 1991Killingsworth Oil Co.MarionKildare West Gloyd Unit #31016,09331580217
376694Aug 28, 1990Aug 28, 1990Killingsworth Oil Co.MarionBush Heirs #46,16331500432
368373Jan 17, 1990Jan 17, 1990Killingsworth Oil Co.CassPrice-Rosser Unit #16,05706780171
364961Nov 27, 1989Nov 27, 1989Killingsworth Oil Co.MarionHicks "A" #16,30031530765
364961Nov 27, 1989Nov 27, 1989Killingsworth Oil Co.MarionHicks "A" #16,40031530765
366578Nov 21, 1989Nov 21, 1989Killingsworth Oil Co.CassOakland Corp. Waterflood Unit #11510,20006730332
358058Apr 13, 1989Apr 13, 1989Killingsworth Oil Co.MarionMoncrief #26,20031530761
357558Mar 31, 1989Mar 31, 1989Killingsworth Oil Co.CassBivins #16,20006730607
347782Jun 17, 1988Jun 17, 1988Killingsworth Oil Co.CassPrice #16,20006730587
347781Jun 16, 1988Jun 16, 1988Killingsworth Oil Co.CassWilliams, F. P. #26,20006730586
346643Jun 15, 1988Jun 15, 1988Killingsworth Oil Co.CassWilliams, F. P. #16,13706730550
343256Mar 2, 1988Mar 2, 1988Killingsworth Oil Co.CassOakland Corporation Wfu #1WS90006730576

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/460860, documented in the API reference.