Petrora

OPERATORS · RRC 697952  · P-5 STATUS Y

Reef Expl, L.P

Richardson, TX

Watch this operator

Reef Expl, L.P has filed no drilling permits in the past 12 months; its most recent permit was issued May 5, 2011.

The RRC wellbore file lists 24 wells under its operatorship.

69 drilling permits have been issued to this operator number since 2006; its P-5 organization report was last filed January 5, 2026.

0
permits, last 12 months
—
vs prior 12 months (0)
0
counties, 12 months
0
producing wells, of 24 of record
44
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.

78%
spud rate · 54 of 69 mature permits
54
median days permit to spud · middle half 28–112
0
spuds, last 180 days
0%
cancelled · 0 permits
15
expired undrilled
12
permits a year over 6 active years

Where

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

County12 moAll timeWellsLast
Cochran county →—440Jan 21, 2009
Glasscock county →—170Mar 26, 2007
Galveston county →—317May 5, 2011
Nueces county →—21Aug 10, 2006
Andrews county →—10Feb 23, 2009
Dawson county →—10Oct 30, 2006
Reeves county →—13Oct 24, 2006

All 69 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
San Andres340
Wolfcamp90
Spraberry80
Clear Fork50
Dean50
Jo Mill40
Frio10
Devonian10
Lamar10
Mississippian10
Vicksburg10

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
705K
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
21
plugged

How it got them

2
permitted itself
22
acquired from others
47
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 13
0
permitted bbl/day, active
0
bbl injected, last 12 reported months
Jun 2025
reported through

By county

Cochran0 active0 bbl/d
Loving0 active0 bbl/d
Webb0 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
Drill0068
Recompletion001

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
Treasure Isle (Big Gas Sand)9101605060
Wildcat600130
Matthews (Lower Cherry Canyon)5832750020
Treasure Isle (Alibel)9101602520
Longhorn Ranch (Stephanie Sand)5477237520
Tunstill East (Delaware)9181850020
Treasure Isle ( S Sand)9101630010
Matthews (Canyon Cons.)5832720010
Alta Loma East (Andrau)197916610
Cow Gully (Lower Weiting)2125124010
Hope (Wilcox Massive)4252842510
Longhorn Ranch (Kenbel Sand)5477223510

P-5 organization report

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

Registration
Status code Y
Last filed Jan 5, 2026
Address
1901 N Central Expwy Suite 300
Richardson, TX 75080
(214) 244-5339
Officers and agents
Reef Exploration, GP, LLC · General Partner
Mauceli, Michael Joseph · Manager

Latest permits

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

PermitSeenIssuedOperatorCountyLease / wellDepthAPI
715470May 5, 2011May 5, 2011Reef Exploration, L.P.GalvestonHalls Bayou Ranch #912,70016731489
678400Feb 23, 2009Feb 23, 2009Reef Exploration, L.P.AndrewsReef University 7 #114,00000340983
677526Jan 21, 2009Jan 21, 2009Reef Exploration, L.P.CochranDean Unit "B" #3R6,00007933189
674865Nov 18, 2008Nov 18, 2008Reef Exploration, L.P.CochranDean Unit "B" #32R6,00007933188
674864Nov 18, 2008Nov 18, 2008Reef Exploration, L.P.CochranDean Unit "B" #27R6,00007933187
674863Nov 17, 2008Nov 17, 2008Reef Exploration, L.P.CochranDean Unit "B" #18R6,00007933186
674862Nov 17, 2008Nov 17, 2008Reef Exploration, L.P.CochranDean Unit "B" #8R6,00007933185
674859Nov 17, 2008Nov 17, 2008Reef Exploration, L.P.CochranDean Unit "B" #2R6,00007933184
671878Oct 6, 2008Oct 6, 2008Reef Exploration, L.P.CochranDean Unit "B" #1906,00007933179
670256Sep 16, 2008Sep 16, 2008Reef Exploration, L.P.CochranDean Unit "B" #1996,00007933177
670254Sep 16, 2008Sep 16, 2008Reef Exploration, L.P.CochranDean Unit "B" #1986,00007933176
670253Sep 16, 2008Sep 16, 2008Reef Exploration, L.P.CochranDean Unit "B" #1976,00007933175
670250Sep 16, 2008Sep 16, 2008Reef Exploration, L.P.CochranDean Unit "B" #1966,00007933174
670249Sep 16, 2008Sep 16, 2008Reef Exploration, L.P.CochranDean Unit "B" #1946,00007933173
670247Sep 16, 2008Sep 16, 2008Reef Exploration, L.P.CochranDean Unit "B" #1936,00007933172

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/697952, documented in the API reference.