OPERATORS · RRC 100709  · P-5 STATUS Y

Calfas Cattle & Oil, LLC

San Antonio, TX

Watch this operator

Calfas Cattle & Oil, LLC has filed no drilling permits in the past 12 months.

The RRC wellbore file lists 116 wells under its operatorship (73 producing).

Lease reports credit it with 2.98K barrels of oil and 0 mcf of gas in the 12 months reported through April 2026, down 12% on the year before.

0
permits, last 12 months
—
vs prior 12 months (0)
0
counties, 12 months
73
producing wells, of 116 of record
15
leases it reports
—
horizontal, 12 months

WINDOWS ON THE RRC ISSUE DATE · COMPUTED OCT 29, 2026

Where

No permits on file under this operator number. Counties of its wells of record, from the RRC wellbore file.

CountyWellsProducing
Medina county →10366
Bexar county →105
Atascosa county →32

All 0 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
No completion tops on file.

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 →

2.98K
bbl oil, last 12 reported months
-12%
vs the 12 months before
0
mcf gas incl. casinghead, last 12
10.2K
bbl oil since reporting began

Oil, barrels

Last 12 months 2,980 · prior 12 3,382(-12%)

0200400600202420252026

Beyond the permit record

RRC wellbore file

Wells of record

116
on the schedule
73
producing
0
shut in
0
injection
0
temp. abandoned
39
plugged

How it got them

0
permitted itself
101
acquired from others
0
permitted, now run by others

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

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
Taylor-Ina885340015931
Chicon Lake176680013122
Fairfield300070011313
Somerset84560001137

P-5 organization report

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

Registration
Status code Y
Last filed Jul 4, 2026
Oil operator
Address
110 Broadway Street Suite 190
San Antonio, TX 78205
(210) 244-3337
Officers and agents
Calfas, Neil · Texas Resident Agent
Calfas, Neil · Member,owner

Latest permits

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

PermitSeenIssuedOperatorCountyLease / wellDepthAPI
859138Nov 20, 2019Nov 20, 2019Civron Petroleum Res., LLCMedinaYoung #61,60032534249
853399May 24, 2019May 24, 2019Civron Petroleum Res., LLCMedinaTom Chaney Fee #71,55032534241
847772Dec 31, 2018Dec 31, 2018Civron Petroleum Res., LLCMedinaTom Chaney Fee #61,55032534235
787195Jun 13, 2014Jun 13, 2014Proex Energy Management, L.L.C.MedinaYoung #41,60032534083
787192Jun 13, 2014Jun 13, 2014Proex Energy Management, L.L.C.MedinaYoung #31,60032534086
787183Jun 13, 2014Jun 13, 2014Proex Energy Management, L.L.C.MedinaYoung #21,60032534081
787053Jun 13, 2014Jun 13, 2014Proex Energy Management, L.L.C.MedinaYoung #11,60032534082
382764Dec 28, 1990Dec 28, 1990Chaney, TomMedinaChaney, Tom Fee #51,50032533544
376174Aug 8, 1990Aug 8, 1990Chaney, TomMedinaChaney, Tom Fee #41,50032533538
376150Aug 1, 1990Aug 1, 1990Chaney, TomMedinaChaney, Tom Fee #31,50032533537
375379Jul 11, 1990Jul 11, 1990Chaney, TomMedinaChaney, Tom Fee #21,50032533536
361102Jul 7, 1989Jul 7, 1989Jay-Dee Operating CompanyMedinaBailey, James Jr. #3954532533519
361101Jul 7, 1989Jul 7, 1989Jay-Dee Operating CompanyMedinaBailey, James Jr. #4055032533520
304211Jul 17, 1986Jul 17, 1986Dorris Petroleum, Inc.BexarSpears #21,50002937605
304209Jul 17, 1986Jul 17, 1986Dorris Petroleum, Inc.BexarSpears #31,50002937604

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/100709, documented in the API reference.