OPERATORS · RRC 506500 · P-5 STATUS Y
Lomax, Thornton Jr
Dallas, TX
Watch this operatorLomax, Thornton JR has filed no drilling permits in the past 12 months; its most recent permit was issued March 19, 1982.
The RRC wellbore file lists 8 wells under its operatorship.
8 drilling permits have been issued to this operator number since 1978; its P-5 organization report was last filed May 15, 1987.
- 0
- permits, last 12 months
- —
- vs prior 12 months (0)
- 0
- counties, 12 months
- 0
- producing wells, of 8 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.
- 75%
- spud rate · 6 of 8 mature permits
- 24
- median days permit to spud · middle half 10–40
- 0
- spuds, last 180 days
- 0%
- cancelled · 0 permits
- 2
- expired undrilled
- 2
- permits a year over 5 active years
Where
Counties by permits in the last 12 months, with all-time permits and current wells of record there.
All 8 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 |
|---|---|---|
| Coleman Junction | 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
- 0
- 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
- 8
- on the schedule
- 0
- producing
- 0
- shut in
- 0
- injection
- 0
- temp. abandoned
- 7
- plugged
How it got them
- 0
- permitted itself
- 0
- acquired from others
- 2
- 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
| Jack | 0 active | 0 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 →
| Type | 12 mo | Prior 12 | All time |
|---|---|---|---|
| Drill | 0 | 0 | 8 |
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 |
|---|---|---|
| Texoma NE. (Tannehill)89179333 | 7 | 0 |
| Fran (Yegua 5)32477500 | 1 | 0 |
P-5 organization report
As registered with the RRC. About the P-5 →
- Registration
- Status code Y
- Last filed May 15, 1987
- Address
- 8080 N Cntrl EXPWY,#1442 L.B.14
- Dallas, TX 75206
- Officers and agents
- Estate of Thornton Lomax, Jr. · Operator
Latest permits
NEWEST FIRST BY ISSUE DATE · FILED OR ON WELLS IT NOW OPERATES
| Permit | Seen | Issued | Operator | County | Lease / well | Depth | API |
|---|---|---|---|---|---|---|---|
| 154362 | Mar 19, 1982 | Mar 19, 1982 | Lomax, Thornton Jr. | Knox | Cartwright "B" #22 | 2,000 | 27531182 |
| 154361 | Mar 19, 1982 | Mar 19, 1982 | Lomax, Thornton Jr. | Knox | Cartwright "B" #23 | 1,762 | 27531181 |
| 56720 | Aug 29, 1979 | Aug 29, 1979 | Lomax, Thornton Jr. | Knox | Kuhler, L. J. #4 | 1,834 | 27530744 |
| 56669 | Aug 29, 1979 | Aug 29, 1979 | Lomax, Thornton Jr. | Baylor | James, J. G. #1 | 1,831 | 02330609 |
| 54047 | Jul 31, 1979 | Jul 31, 1979 | Lomax, Thornton Jr. | Knox | Carter, R. L. #1 | 2,000 | 27530739 |
| 54045 | Jul 27, 1979 | Jul 27, 1979 | Lomax, Thornton Jr. | Baylor | Hargrave, C. #1 | 1,830 | 02330604 |
| 52331 | Jul 6, 1979 | Jul 6, 1979 | Lomax, Thornton Jr. | Knox | Kuhler, L. J. #1 | 1,831 | 27530737 |
| 18678 | Feb 21, 1978 | Feb 21, 1978 | Lomax, Thornton Jr. | Knox | Cartwright, Perry "B" #21 | 2,000 | 27530633 |
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/506500, documented in the API reference.