Petrora

OPERATORS · RRC 486640  · P-5 STATUS Y

Largo Oil Co

Longview, TX

Watch this operator

Largo Oil CO has filed no drilling permits in the past 12 months; its most recent permit was issued November 15, 2002.

The RRC wellbore file lists 46 wells under its operatorship (14 producing).

Lease reports credit it with 2.48K barrels of oil and 139K mcf of gas in the 12 months reported through April 2026, down 40% on the year before.

6 drilling permits have been issued to this operator number since 1983; its P-5 organization report was last filed December 4, 2025.

0
permits, last 12 months
—
vs prior 12 months (0)
0
counties, 12 months
14
producing wells, of 46 of record
47
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.

50%
spud rate · 3 of 6 mature permits
83
median days permit to spud · middle half 48–118
0
spuds, last 180 days
0%
cancelled · 0 permits
3
expired undrilled
0
permits a year over 20 active years

Where

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

County12 moAll timeWellsLast
Rusk county →—321Nov 15, 2002
Crockett county →—10May 11, 1984
Irion county →—10Jun 20, 1983
Panola county →—12Dec 22, 1983

All 6 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
Rodessa10
James Lime10
Pettit10
Travis Peak10

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 →

2.48K
bbl oil, last 12 reported months
-40%
vs the 12 months before
139K
mcf gas incl. casinghead, last 12
173K
bbl oil since reporting began

Gas, mcf

Last 12 months 138,683 · prior 12 142,941(-3%)

010K20K202420252026

Oil, barrels

Last 12 months 2,484 · prior 12 4,146(-40%)

0200400600202420252026

Beyond the permit record

RRC wellbore file

Wells of record

46
on the schedule
14
producing
0
shut in
0
injection
0
temp. abandoned
27
plugged

How it got them

1
permitted itself
25
acquired from others
2
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 1
0
permitted bbl/day, active
0
bbl injected, last 12 reported months
Jun 2025
reported through

By county

Callahan0 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
Drill003
Recompletion003

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
Callahan County Regular1482000190
Minden (Cotton Valley Cons.)6179211199
Interstate (Canyon)4463433330
Stephens County Regular (Gas)8594810030
Sym-Jac West (Hosston)8783050022
Henderson (Rusk Co. Pettit)4035342621
J. G. S. (Pettit Lower)4503420020
Minden (Travis Peak Cons.)6179238020
Danville East (Pettit Lower)2309080010
Itex (Pettet)4482730010
CA (Penn Lime)1418060010
Church Hill (Travis Peak)1818250010

P-5 organization report

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

Registration
Status code Y
Last filed Dec 4, 2025
CSGD/GCSGD/PG/PURGas gatheringGas operatorOil operator
Address
P O Box 3403
Longview, TX 75606
(903) 753-3441
Officers and agents
Hennigan, Don C Jr · President
Hennigan, Tracie · Vice President

Latest permits

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

PermitSeenIssuedOperatorCountyLease / wellDepthAPI
633938Feb 26, 2007Feb 26, 2007Goodrich Petroleum CompanyRuskD Cates #111,00040134240
618079Apr 24, 2006Apr 24, 2006Ascent Operating, LPRuskCuba Alexander Gas Unit No. 1 #610,95040133920
614428Feb 21, 2006Feb 21, 2006Ascent Operating, LPRuskCuba Alexander Gas Unit No. 1 #710,95040133857
605281Aug 23, 2005Aug 23, 2005Ascent Operating, LPRuskCuba Alexander Gas Unit No. 1 #310,95040133659
605281Aug 23, 2005Aug 23, 2005Ascent Operating, LPRuskCuba Alexander Gas Unit No. 1 #310,95040133659
605280Aug 23, 2005Aug 23, 2005Ascent Operating, LPRuskCuba Alexander Gas Unit No. 1 #210,95040133658
605280Aug 23, 2005Aug 23, 2005Ascent Operating, LPRuskCuba Alexander Gas Unit No. 1 #210,95040133658
605280Aug 23, 2005Aug 23, 2005Ascent Operating, LPRuskCuba Alexander Gas Unit No. 1 #210,95040133658
605276Aug 23, 2005Aug 23, 2005Ascent Operating, LPRuskCuba Alexander Gas Unit No. 1 #1A10,95040133657
605276Aug 23, 2005Aug 23, 2005Ascent Operating, LPRuskCuba Alexander Gas Unit No. 1 #1A10,95040133657
605274Aug 23, 2005Aug 23, 2005Ascent Operating, LPRuskCagle-Harris Gas Unit No. 1 #1A11,15040133656
605274Aug 23, 2005Aug 23, 2005Ascent Operating, LPRuskCagle-Harris Gas Unit No. 1 #1A11,15040133656
517574Nov 15, 2002Nov 15, 2002Largo Oil CompanyRuskSears #110,79440131920
518127Mar 6, 2002Mar 6, 2002Largo Oil CompanyRuskRives #110,85040131788
478079Jul 17, 1998Jul 17, 1998Largo Oil CompanyRuskWilkerson, Bill #111,87140131128

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/486640, documented in the API reference.