OPERATORS · TEXAS · P-5 NUMBER 139611

Cass Energy Corp

P-5 status
Inactive (I)
P-5 last filed
Jan 10, 1995
Based in
Dallas, TX

Cass Energy Corp has filed no drilling permits in the past 12 months; its most recent permit was issued July 8, 1994.

The RRC wellbore file lists 4 wells under its operatorship.

24 drilling permits have been issued to this operator number since 1991; its P-5 organization report was last filed January 10, 1995.

0
permits, last 12 months
—
vs prior 12 months (0)
0
counties, 12 months
0
producing wells, of 4 of record
59
leases reported on · 2 today
—
horizontal, 12 months

WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 9, 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.

71%
spud rate · 17 of 24 mature permits
8
median days permit to spud · middle half 4–16
0
spuds, last 180 days
4%
canceled · 1 permits
6
expired undrilled
6
permits a year over 4 active years

Permits issued by month

LAST 60 MONTHS · BY ISSUE DATE

Last 12 months 0 · prior 12 0

0120222023202420252026

Counties

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

County12 moAll timeWellsLast
Irion county →—100Sep 28, 1992
Concho county →—92Mar 30, 1993
Garza county →—10Nov 15, 1991
Kent county →—10Oct 16, 1991
Lipscomb county →—10Nov 19, 1993
Schleicher county →—10Jul 8, 1994
Stonewall county →—10May 2, 1991

All 24 permits, searchable → · Leases it reported on → · On the map →

Formations in wells it permitted

Tops reported on completion filings for wells permitted under this operator number, including wells others run today. RRC wellbore file. About tops →

FormationWellsPermitted last 3 yrs
Canyon30
Clear Fork20
Wolfcamp20
San Angelo20

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. From 59 leases it reported on; 57 are reported by other operators today.How production is reported →

0
bbl oil, last 12 reported months
—
vs the 12 months before
0
mcf gas incl. casinghead, last 12
152K
bbl oil since reporting began

No lease production reported under this operator number in the last ten years.

Beyond the permit record

RRC wellbore file

Wells of record

4
wells of recordas the RRC's wellbore query lists them, a well per wellbore and lease
0
producing
0
shut in
0
injection
0
temp. abandoned
4
plugged

Operator of record and permit operator

4 wellbores of record

2
it permitted itself
1
acquired: another operator's permit
1
no permit on file

18 wellbores it permitted

3
run by other operators today
0
live permits, no operator of record yet
13
RRC lists no operator of record

A well's operator of record is the RRC's, and its permit operator is the one on its latest drilling permit; neither fills in for the other. Its wellbores of record are counted as its wells, with its live permits; a well it permitted that another operator runs, or that the RRC lists with no operator at all, is not. Each count opens the wells it counts. Transfers and operator numbers →

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
Drill0018
Reenter003
Recompletion002
Other001

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
Arena (Goen)350240020
Spraberry (Trend Area)8527920010
Spraberry (Trend Area CL. Fk.)8527940010

P-5 organization report

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

Registration
Status Inactive (I)
Last filed Jan 10, 1995
Address
5950 Berkshire LN Ste 530
Dallas, TX 75225
(214) 871-6000
Officers and agents
Cass, William G. · President
Minczewski, James R · Vice President/Treasurer
Wimberly, Gayle · Secretary/Treasurer

Latest permits

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

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 by the operator that filed them, through the statewide reported-through month; disposal from UIC permits and H-10 reports. Oil includes condensate from gas leases and gas includes casinghead gas from oil leases, as the RRC totals them. Summary figures are rebuilt nightly. Nothing is estimated.

Developers: this page as JSON is GET /v1/data/operators/tx/139611, documented in the API reference.