OPERATORS · RRC 348530  · P-5 STATUS Y

Hamilton Brothers Oil Co

Hamilton Brothers Oil CO has filed no drilling permits in the past 12 months; its most recent permit was issued March 30, 1989.

The RRC wellbore file lists 9 wells under its operatorship.

70 drilling permits have been issued to this operator number since 1978; its P-5 organization report was last filed February 6, 1998.

0
permits, last 12 months
—
vs prior 12 months (0)
0
counties, 12 months
0
producing wells, of 9 of record
1
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.

33%
spud rate · 23 of 70 mature permits
15
median days permit to spud · middle half 11–38
0
spuds, last 180 days
0%
cancelled · 0 permits
47
expired undrilled
6
permits a year over 12 active years

Where

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

County12 moAll timeWellsLast
Bee county →—170Jun 13, 1980
DE Witt county →—60Nov 3, 1988
Gonzales county →—61Mar 17, 1982
Hemphill county →—60Nov 10, 1982
Cooke county →—52Apr 11, 1988
Hidalgo county →—50Oct 16, 1985
Duval county →—41Feb 11, 1982
Goliad county →—30Dec 31, 1982
Jim Wells county →—31Feb 7, 1983
Ochiltree county →—30Mar 30, 1989
Kent county →—20Feb 26, 1979
Matagorda county →—20May 1, 1980
Atascosa county →—10Nov 19, 1979
Brooks county →—10Dec 17, 1982
Crockett county →—10Jul 16, 1982
Howard county →—10Jun 16, 1978
Montgomery county →—12Nov 23, 1987
Nolan county →—10Jan 6, 1978
Roberts county →—11Oct 28, 1980
Zapata county →—10Sep 2, 1980

All 70 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
Morrow10
Chester10
Cleveland10
Wilcox10
Yegua10
Vicksburg10
Frio10
Oswego10

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
1.95K
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

9
on the schedule
0
producing
0
shut in
0
injection
0
temp. abandoned
8
plugged

How it got them

6
permitted itself
1
acquired from others
15
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

Jim Wells0 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
Drill0058
Recompletion0012

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.

P-5 organization report

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

Registration
Status code Y
Last filed Feb 6, 1998
Address
5847 San Felipe #3600 %reg Dept
Houston, TX 77057
Officers and agents
Parker, Edwin W. II · Texas Resident Agent
Hamilton, Frederic C. · Director/Ceo/President
Miller, AJ · Director/Vice President/Treasure
Haskell, Russell K. · Director/Gen Counsel/Secretary
Cunningham, Scott A. · Vice President
Justus, Dennis E. · Vice President/Treasurer
Catlett, David B. · Vice President
Stevens, Ralph W. · Vice President
All 13 on the P-5 →

Latest permits

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

PermitSeenIssuedOperatorCountyLease / wellDepthAPI
356810Mar 30, 1989Mar 30, 1989Hamilton Brothers Oil Co.OchiltreeGarnett, B.J. #51358,25035731927
352671Nov 3, 1988Nov 3, 1988Hamilton Brothers Oil Co.DE WittSyma, Joe G. et AL #27,90012331592
352671Nov 3, 1988Nov 3, 1988Hamilton Brothers Oil Co.DE WittSyma, Joe G. et AL #27,90012331592
344914Apr 11, 1988Apr 11, 1988Hamilton Brothers Oil Co.CookeMcMahon, Marjorie #35,88009731849
340852Jan 4, 1988Jan 4, 1988Hamilton Brothers Oil Co.CookeBurrell #26,95009732595
338827Nov 23, 1987Nov 23, 1987Hamilton Brothers Oil Co.MontgomeryFriendswood Development #111,16033930501
332059Jul 13, 1987Jul 13, 1987Hamilton Brothers Oil Co.CookeBurrell #26,95009732595
287553Oct 16, 1985Oct 16, 1985Hamilton Brothers Oil Co.HidalgoGarcia, J. A. et AL #44,20021531661
285101Sep 19, 1985Sep 19, 1985Hamilton Brothers Oil Co.CookeBurrell #17,20009732370
271207Apr 2, 1985Apr 2, 1985Hamilton Brothers Oil Co.HidalgoGarcia, J. A. et AL #311,00021531595
243342Jun 27, 1984Jun 27, 1984Volvo Petroleum, IncCookeBurrell #27,20009732595
221092Nov 21, 1983Nov 21, 1983Hamilton Brothers Oil Co.HidalgoGarcia, J. A. et AL #27,25021531378
218128Oct 21, 1983Oct 21, 1983Hamilton Brothers Oil Co.HidalgoGarcia, J. A. et AL #1A4,50021531393
212518Sep 14, 1983Sep 14, 1983Volvo Petroleum, IncCookeBurrell #17,20009732370
185775Feb 7, 1983Feb 7, 1983Hamilton Brothers Oil Co.Jim WellsLA Rose, L. H. #15,55024931007

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/348530, documented in the API reference.