Petrora

OPERATORS · RRC 486710  · P-5 STATUS Y

Lario Oil & Gas Co

Odessa, TX

Watch this operator

Lario Oil & Gas CO has filed no drilling permits in the past 12 months; its most recent permit was issued December 12, 2022.

The RRC wellbore file lists 82 wells under its operatorship (13 producing, 4 shut in).

Lease reports credit it with 42.6K barrels of oil and 153K mcf of gas in the 12 months reported through April 2026, down 18% on the year before.

It holds 2 active disposal or injection permits, injecting 516K barrels in the 12 months reported through June 2025.

448 drilling permits have been issued to this operator number since 1977; its P-5 organization report was last filed April 4, 2026.

0
permits, last 12 months
—
vs prior 12 months (0)
0
counties, 12 months
13
producing wells, of 82 of record
51
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.

73%
spud rate · 326 of 448 mature permits
47
median days permit to spud · middle half 20–97
0
spuds, last 180 days
0%
cancelled · 0 permits
122
expired undrilled
10
permits a year over 46 active years

Permits issued by month

LAST 11 MONTHS · BY ISSUE DATE

Last 12 months 62

0510152022

Where

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

County12 moAll timeWellsLast
Martin county →—24613Dec 12, 2022
Crane county →—5911Oct 2, 2014
Midland county →—500Dec 12, 2022
Ector county →—2225Dec 10, 2021
Scurry county →—138Dec 17, 2009
Winkler county →—92Jul 16, 2008
Pecos county →—80Sep 2, 1997
Borden county →—65May 11, 1983
Mitchell county →—61Feb 4, 1985
Howard county →—57Nov 12, 1981
Glasscock county →—42Jan 24, 1985
Jim Wells county →—40Aug 29, 2001
Gaines county →—30Mar 4, 1986
DE Witt county →—21Aug 7, 1980
Kent county →—22Jul 9, 1984
Crockett county →—10Nov 30, 1993
Duval county →—10Aug 29, 2001
Fisher county →—11Jan 24, 1978
Lamb county →—10Aug 31, 1990
Lubbock county →—10Jun 17, 1977
Matagorda county →—10Sep 16, 1977
Newton county →—10Jul 31, 1979
Reeves county →—10Mar 4, 1997
Yoakum county →—10Jul 1, 1982

All 448 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 Andres1690
Yates1650
Queen1640
Grayburg1640
Spraberry1530
Santa Rosa1460
Dean990
Wolfcamp930
Clear Fork650
Glorieta410
Seven Rivers380
Tubb250
Rustler140
San Angelo100
Holt90

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 →

42.6K
bbl oil, last 12 reported months
-18%
vs the 12 months before
153K
mcf gas incl. casinghead, last 12
33.1M
bbl oil since reporting began

Oil, barrels

Last 12 months 42,594 · prior 12 52,204(-18%)

02K4K6K202420252026

Gas, mcf

Last 12 months 152,586 · prior 12 232,839(-34%)

010K20K30K202420252026

Beyond the permit record

RRC wellbore file

Wells of record

82
on the schedule
13
producing
4
shut in
0
injection
0
temp. abandoned
43
plugged

How it got them

34
permitted itself
5
acquired from others
167
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

2
active UIC permits of 12
7.8K
permitted bbl/day, active
516K
bbl injected, last 12 reported months
Jun 2025
reported through

By county

Crane1 active6K bbl/d
Ector1 active1.8K bbl/d
Scurry0 active0 bbl/d
Ward0 active0 bbl/d
Howard0 active0 bbl/d
Borden0 active0 bbl/d
Midland0 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
Drill00380
Recompletion0048
Field transfer0012
Other004
Reenter004

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
Goldsmith (Clear Fork)35652062227
Sand Hills (Tubb)8047368284
Spraberry (Trend Area)8528030070
Sulphur Draw (Dean 8790)8707333350
Hobo (Pennsylvanian)4181633350
Goldsmith East (Queen)3565383230
Vealmoor NE. (Wolfcamp)9331250030
Diamond -M- (Wolfcamp)2456271030
Tonto N. (Strawn)9069680020
Vealmoor East9331000120
Brooking SE (Penn Reef)1221650020
Sand Hills (San Angelo Upper)8047362022

P-5 organization report

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

Registration
Status code Y
Last filed Apr 4, 2026
Gas operatorOil operator
Address
5013 Andrews Hwy
Odessa, TX 79762
(432) 803-9139
Officers and agents
Corporation Service Company · Texas Resident Agent
O'Shaughnessy, Michael W. · Director,chairman/Ceo
O'Shaughnessy, Daniel J. · Director
O'Shaughnessy, Ryan P. · Director,president
O'Shaughnessy, Stephen M. · Director
Blundell, Lori · Secretary,general Counsel
Walker, Thad · Vice President,other

Latest permits

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

PermitSeenIssuedOperatorCountyLease / wellDepthAPI
884974Dec 12, 2022Dec 12, 2022Lario Oil & Gas CompanyMartinHalsey 8 #403H10,60531744796
884907Dec 12, 2022Dec 12, 2022Lario Oil & Gas CompanyMidlandPatton 2 #106H10,60032945986
884848Dec 12, 2022Dec 12, 2022Lario Oil & Gas CompanyMartinHalsey 7 #306H11,01831744792
884847Dec 12, 2022Dec 12, 2022Lario Oil & Gas CompanyMartinHalsey 11 #305H11,01831744791
884845Dec 12, 2022Dec 12, 2022Lario Oil & Gas CompanyMartinHalsey 11 #304H11,01831744790
884843Dec 12, 2022Dec 12, 2022Lario Oil & Gas CompanyMartinHalsey 12 #303H11,01831744789
884840Dec 12, 2022Dec 12, 2022Lario Oil & Gas CompanyMartinHalsey 7 #302H11,01831744788
884833Dec 12, 2022Dec 12, 2022Lario Oil & Gas CompanyMartinHalsey 11 #301H11,01831744787
884975Nov 18, 2022Nov 18, 2022Lario Oil & Gas CompanyMartinHalsey 4 #404H10,60531744797
883733Oct 13, 2022Oct 13, 2022Lario Oil & Gas CompanyMartinSteuben 3 #305H10,60531744681
883731Oct 13, 2022Oct 13, 2022Lario Oil & Gas CompanyMartinSteuben 6 #304H10,60531744680
883726Oct 13, 2022Oct 13, 2022Lario Oil & Gas CompanyMartinSteuben #105H10,60531744679
882917Sep 20, 2022Sep 20, 2022Lario Oil & Gas CompanyMartinBradley 2 #103H10,20031744607
881023Jul 15, 2022Jul 15, 2022Lario Oil & Gas CompanyMartinWashington 4 #105H10,60531744444
881060Jul 14, 2022Jul 14, 2022Lario Oil & Gas CompanyMartinMott 8 #208H10,60531744451

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/486710, documented in the API reference.