OPERATORS · RRC 142295 · P-5 STATUS Y

Challenge Oper, Inc

Tulsa, OK

Challenge Oper, Inc has filed no drilling permits in the past 12 months; its most recent permit was issued October 23, 1992.

The RRC wellbore file lists 2 wells under its operatorship.

10 drilling permits have been issued to this operator number since 1987; its P-5 organization report was last filed May 5, 2000.

0: permits, last 12 months
—: vs prior 12 months (0)
0: counties, 12 months
0: producing wells, of 2 of record
0: 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.

20%: spud rate · 2 of 10 mature permits
23: median days permit to spud · middle half 23–23
0: spuds, last 180 days
0%: cancelled · 0 permits
8: expired undrilled
2: permits a year over 6 active years

Where

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

County	12 mo	All time	Wells	Last
San Patricio county →	—	4	1	Oct 24, 1991
Bee county →	—	2	1	Jul 5, 1988
Madison county →	—	2	0	Oct 23, 1992
Karnes county →	—	1	0	May 16, 1988
Live Oak county →	—	1	0	Sep 24, 1987

All 10 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 →

Formation	Wells	Permitted last 3 yrs
Austin Chalk	1	0
Woodbine	1	0
Sub-Clarksville	1	0

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
2.69K: 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

2: on the schedule
0: producing
0: shut in
0: injection
0: temp. abandoned
2: plugged

How it got them

2: permitted itself
0: acquired from others
4: permitted, now run by others

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

Type	12 mo	Prior 12	All time
Drill	0	0	6
Reenter	0	0	2
Recompletion	0	0	2

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.

Field	Wells	Producing
Riverside East (5510)77048583	1	0
Singleton NE (3680)83741500	1	0

P-5 organization report

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

Registration: Status code Y; Last filed May 5, 2000

Address: 427 S Boston Suite 803; Tulsa, OK 74103

Officers and agents: Gredell, Mark · Texas Resident Agent; Green, Gary A. · President; Green, Anita Y. · Secretary

Latest permits

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

Permit	Seen	Issued	Operator	County	Lease / well	Depth	API
405145	Oct 23, 1992	Oct 23, 1992	Challenge Operating, Inc.	Madison	Magness, Robert B. #1	9,725	31300093
393035	Oct 24, 1991	Oct 24, 1991	Challenge Operating, Inc.	San Patricio	Williams, J.E. #1	6,900	40932216
381039	Nov 19, 1990	Nov 19, 1990	Challenge Operating, Inc.	Madison	Wiley W. Bryant Unit No. 1 #1	9,681	31330304
352997	Nov 3, 1988	Nov 3, 1988	Challenge Operating, Inc.	San Patricio	Williams, J. E. #1	6,900	40932216
348566	Jul 5, 1988	Jul 5, 1988	Challenge Operating, Inc.	Bee	Bewley #1	3,850	02532476
346472	May 16, 1988	May 16, 1988	Challenge Operating, Inc.	Karnes	Willbern #1	4,150	25531199
340627	Dec 23, 1987	Dec 23, 1987	Challenge Operating, Inc.	San Patricio	Williams, J.E. #1	6,900	40932216
340627	Dec 23, 1987	Dec 23, 1987	Challenge Operating, Inc.	San Patricio	Williams, J.E. #1	6,900	40932216
339657	Dec 3, 1987	Dec 3, 1987	Challenge Operating, Inc.	Bee	Kearns #1	4,000	02532439
336436	Sep 24, 1987	Sep 24, 1987	Challenge Operating, Inc.	Live Oak	Roberthon #1	5,000	29733787

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/142295, documented in the API reference.