Petrora

OPERATORS · RRC 433075  · P-5 STATUS Y

JM Cox Res, L.P

Midland, TX

Watch this operator

JM Cox Res, L.P has filed no drilling permits in the past 12 months; its most recent permit was issued May 8, 2017.

The RRC wellbore file lists 164 wells under its operatorship.

180 drilling permits have been issued to this operator number since 2002; its P-5 organization report was last filed December 7, 2018.

0
permits, last 12 months
—
vs prior 12 months (0)
0
counties, 12 months
0
producing wells, of 164 of record
98
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.

96%
spud rate · 173 of 180 mature permits
22
median days permit to spud · middle half 10–41
0
spuds, last 180 days
0%
cancelled · 0 permits
7
expired undrilled
12
permits a year over 15 active years

Where

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

County12 moAll timeWellsLast
Upton county →—6521Apr 7, 2017
Martin county →—6130Jan 12, 2017
Reagan county →—1721Dec 7, 2015
Midland county →—1525May 8, 2017
Glasscock county →—1134Oct 6, 2015
Kent county →—32Dec 4, 2013
Andrews county →—24Nov 8, 2012
Irion county →—223Aug 2, 2013
Yoakum county →—20May 21, 2008
Howard county →—10Jun 10, 2009
Ward county →—10Feb 23, 2005

All 180 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
Spraberry1270
Wolfcamp1120
Dean1060
Strawn540
San Andres350
Clear Fork340
Pennsylvanian280
Grayburg250
Queen230
Yates230
Cline190
Santa Rosa190
Glorieta110
Seven Rivers100
Wichita-Albany70

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
14M
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

164
on the schedule
0
producing
0
shut in
0
injection
0
temp. abandoned
153
plugged

How it got them

4
permitted itself
78
acquired from others
129
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 4
0
permitted bbl/day, active
0
bbl injected, last 12 reported months
Jun 2025
reported through

By county

Midland0 active0 bbl/d
Reagan0 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
Drill00175
Recompletion004
Field transfer001

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
Spraberry (Trend Area)852803001290
Martin (Tubb)5777466440
Parks (Spraberry)6923366440
Parks (Consolidated)6923312540
Ackerly (Dean Sand)44820030
Clyde Reynolds (Wolfcamp)1909760030
Michelle Kay (Cisco)6098920020
Benedum (Fusselman)710950020
Andrew A. (Canyon)271840020
Big Spring W. (Penn)804730020
Benedum (Wolfcamp)710990020
Sulphur Draw (Dean 8790)8707333310

P-5 organization report

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

Registration
Status code Y
Last filed Dec 7, 2018
Address
Box 2217
Midland, TX 79702
(432) 682-9435
Officers and agents
JM Cox Resources Genpar, LLC · General Partner
Cox, James Kelly · Member

Latest permits

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

PermitSeenIssuedOperatorCountyLease / wellDepthAPI
826095May 8, 2017May 8, 2017JM Cox Resources, L.P.MidlandBrooks 'A' #312,00032941678
826095May 8, 2017May 8, 2017JM Cox Resources, L.P.MidlandBrooks 'A' #312,00032941678
826095May 8, 2017May 8, 2017JM Cox Resources, L.P.MidlandBrooks 'A' #312,00032941678
825050Apr 7, 2017Apr 7, 2017JM Cox Resources, L.P.UptonOwens 'J' #612,00046140575
825050Apr 7, 2017Apr 7, 2017JM Cox Resources, L.P.UptonOwens -J- #612,00046140575
824173Mar 14, 2017Mar 14, 2017JM Cox Resources, L.P.UptonMorgan #712,00046140558
822411Jan 31, 2017Jan 31, 2017JM Cox Resources, L.P.UptonAlice #312,00046140526
822411Jan 31, 2017Jan 31, 2017JM Cox Resources, L.P.UptonAlice #312,00046140526
821878Jan 12, 2017Jan 12, 2017JM Cox Resources, L.P.MartinTant Lindsey #59,50031740664
821701Jan 9, 2017Jan 9, 2017JM Cox Resources, L.P.MartinDickenson 'B' #69,50031740662
820901Dec 15, 2016Dec 15, 2016JM Cox Resources, L.P.MidlandCrespi 'B' #612,00032941372
820901Dec 15, 2016Dec 15, 2016JM Cox Resources, L.P.MidlandCrespi 'B' #612,00032941372
820901Dec 15, 2016Dec 15, 2016JM Cox Resources, L.P.MidlandCrespi 'B' #612,00032941372
819422Oct 27, 2016Oct 27, 2016JM Cox Resources, L.P.MartinHouston Woody #512,00031740578
818928Oct 14, 2016Oct 14, 2016JM Cox Resources, L.P.MartinLois Madison #312,00031740562

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/433075, documented in the API reference.