Petrora

OPERATORS · RRC 780233  · P-5 STATUS Y

Sierra Res, LLC

Houston, TX

Watch this operator

Sierra Res, LLC has filed no drilling permits in the past 12 months; its most recent permit was issued September 13, 2019.

The RRC wellbore file lists 15 wells under its operatorship.

72 drilling permits have been issued to this operator number since 2003; its P-5 organization report was last filed July 2, 2021.

0
permits, last 12 months
—
vs prior 12 months (0)
0
counties, 12 months
0
producing wells, of 15 of record
11
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.

71%
spud rate · 51 of 72 mature permits
24
median days permit to spud · middle half 17–47
0
spuds, last 180 days
0%
cancelled · 0 permits
21
expired undrilled
4
permits a year over 17 active years

Where

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

County12 moAll timeWellsLast
Hidalgo county →—444Jun 28, 2008
LA Salle county →—148Dec 20, 2018
McMullen county →—91Sep 13, 2019
Kenedy county →—42May 3, 2007
Live Oak county →—10Aug 29, 2018

All 72 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
Vicksburg250
Frio220
Wilcox150
Olmos140
Escondido140
Queen City110
Yegua100
Sparta100
Eagle Ford40
Navarro40
Austin Chalk40
Jackson30
Anacacho30
Catahoula20
Miocene (undifferentiated)20

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
4.38K
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

15
on the schedule
0
producing
0
shut in
0
injection
0
temp. abandoned
6
plugged

How it got them

12
permitted itself
2
acquired from others
32
permitted, now run by others

Acquired means the well's permit names a different operator than the schedule does today. Transfers and operator numbers →

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
Drill0066
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
A.W.P. (Olmos)25650080
McMoran (8960)5981885220
Sorillo (Vicksburg 11 600)8467950020
Little Alamo (6200)5393377510
McAllen Ranch (Vksbg P-V S Cons)5874234210
Wildcat800110

P-5 organization report

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

Registration
Status code Y
Last filed Jul 2, 2021
Address
P O Box 130546
Houston, TX 77219
(832) 814-5586
Officers and agents
Eads, John · Ceo
Kelly, John H Jr · Vice President/Manager
Campbell, John T. · Coo/Vice President
Eads, John Carr · President/Cfo

Latest permits

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

PermitSeenIssuedOperatorCountyLease / wellDepthAPI
882404Jul 26, 2022Jul 26, 2022Vermillion Production, Inc.McMullenSTS D #2VI6,00031137004
857029Sep 13, 2019Sep 13, 2019Sierra Resources, LLCMcMullenSTS D #2V7,00031137004
857029Sep 13, 2019Sep 13, 2019Sierra Resources, LLCMcMullenSTS D #2V6,50031137004
847991Dec 20, 2018Dec 20, 2018Sierra Resources, LLCLA SalleSTS 'A' #1S9,55028334432
845888Oct 22, 2018Oct 22, 2018Sierra Resources, LLCLA SalleSr Altuve #27HH9,24428336513
845861Oct 22, 2018Oct 22, 2018Sierra Resources, LLCLA SalleSr Bregman #2HH9,13428336511
845861Oct 22, 2018Oct 22, 2018Sierra Resources, LLCLA SalleSr Bregman #2HH9,28028336511
844023Aug 29, 2018Aug 29, 2018Sierra Resources, LLCLive OakSr Schulz Unit #1HH14,39429735964
835430Jan 29, 2018Jan 29, 2018Sierra Resources, LLCMcMullenSr Ryan Unit #1HH13,79531136809
835430Jan 29, 2018Jan 29, 2018Sierra Resources, LLCMcMullenSr Ryan Unit #1HH13,57631136809
835168Jan 26, 2018Jan 26, 2018Sierra Resources, LLCMcMullenLarry Miles #2HH12,98331136808
835168Jan 26, 2018Jan 26, 2018Sierra Resources, LLCMcMullenLarry Miles #2HH13,07031136808
832086Oct 26, 2017Oct 26, 2017Sierra Resources, LLCMcMullenOtto #1HH12,63831136782
828603Jul 12, 2017Jul 12, 2017Sierra Resources, LLCLA SalleSTS A #2S9,42828334645
828536Jul 11, 2017Jul 11, 2017Sierra Resources, LLCMcMullenSTS 1 EF #1HH12,63831136739

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/780233, documented in the API reference.