Petrora

OPERATORS · RRC 123614  · P-5 STATUS Y

Calfas Oil, LLC

San Antonio, TX

Watch this operator

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

The RRC wellbore file lists 107 wells under its operatorship (67 producing).

Lease reports credit it with 3.59K 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
67
producing wells, of 107 of record
19
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
Bexar county →6158
Atascosa county →469

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 →

3.59K
bbl oil, last 12 reported months
-12%
vs the 12 months before
0
mcf gas incl. casinghead, last 12
18.8K
bbl oil since reporting began

Oil, barrels

Last 12 months 3,588 · prior 12 4,077(-12%)

0200400600202420252026

Beyond the permit record

RRC wellbore file

Wells of record

107
on the schedule
67
producing
0
shut in
0
injection
0
temp. abandoned
15
plugged

How it got them

0
permitted itself
94
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
Somerset845600016224
Fairfield300070014543

P-5 organization report

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

Registration
Status code Y
Last filed Dec 4, 2025
Oil operator
Address
110 Broadway Street Ste 190
San Antonio, TX 78205
(210) 244-3337
Officers and agents
Calfas, Neil Adrian · Member

Latest permits

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

PermitSeenIssuedOperatorCountyLease / wellDepthAPI
340486Dec 22, 1987Dec 22, 1987Caltate Energy Corp.BexarGalindo, Fred #91,60002937884
340485Dec 22, 1987Dec 22, 1987Caltate Energy Corp.BexarGalindo, Fred #101,60002937885
329813May 8, 1987May 8, 1987Emerson Oil CompanyAtascosaMcCain, L. W. 'Tract A' #51,55001333816
329812May 8, 1987May 8, 1987Emerson Oil CompanyAtascosaMcCain, L. W. 'Tract A' #71,55001333815
329811May 8, 1987May 8, 1987Emerson Oil CompanyAtascosaMcCain, L W Tract "A" #41,55001333814
289227Nov 5, 1985Nov 5, 1985Colstar Petroleum, Corp.BexarFranger, Henry F. #411,30002936830
289228Nov 5, 1985Nov 5, 1985Colstar Petroleum, Corp.BexarFranger, Henry F. #401,30002936831
289231Nov 5, 1985Nov 5, 1985Colstar Petroleum, Corp.BexarFranger, Henry F. #391,30002936832
289221Nov 5, 1985Nov 5, 1985Colstar Petroleum, Corp.BexarFranger, Henry F. #181,30002936828
267470Feb 22, 1985Feb 22, 1985CG Oil Co.BexarPurvis #91,25002936308
267469Feb 22, 1985Feb 22, 1985CG Oil Co.BexarPurvis #81,25002936307
267463Feb 22, 1985Feb 22, 1985CG Oil Co.BexarPurvis #71,25002936301
267464Feb 22, 1985Feb 22, 1985CG Oil Co.BexarPurvis #61,25002936302
267465Feb 22, 1985Feb 22, 1985CG Oil Co.BexarPurvis #51,25002936303
267466Feb 22, 1985Feb 22, 1985CG Oil Co.BexarPurvis #41,25002936304

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/123614, documented in the API reference.