OPERATORS · RRC 840400 · P-5 STATUS Y
TDC Engineering, Inc
Abilene, TX · most active in Nolan County
Watch this operatorTdc Engineering, Inc was issued 2 drilling permits in the past 12 months, versus 2 in the prior year, all in Nolan County. 0% were horizontal.
None were issued in the past 90 days.
The RRC wellbore file lists 85 wells under its operatorship (1 producing).
Lease reports credit it with 14.6K barrels of oil and 0 mcf of gas in the 12 months reported through April 2026.
227 drilling permits have been issued to this operator number since 1981; its P-5 organization report was last filed August 4, 2025.
- 2
- permits, last 12 months
- +0%
- vs prior 12 months (2)
- 1
- counties, 12 months
- 1
- producing wells, of 85 of record
- 46
- leases it reports
- 0%
- 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.
- 40%
- spud rate · 90 of 225 mature permits
- 17
- median days permit to spud · middle half 7–38
- 0
- spuds, last 180 days
- 1%
- cancelled · 2 permits
- 135
- expired undrilled
- 5
- permits a year over 46 active years
Permits issued by month
LAST 5 MONTHS · BY ISSUE DATE
Last 12 months 6
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 |
|---|---|---|---|---|
| Nolan county → | 2 | 14 | 1 | Jul 21, 2026 |
| Webb county → | — | 84 | 17 | Apr 22, 1992 |
| Zapata county → | — | 28 | 0 | May 18, 1988 |
| Gonzales county → | — | 25 | 30 | Jun 18, 1996 |
| Mitchell county → | — | 9 | 0 | Jun 8, 1994 |
| Fisher county → | — | 7 | 6 | Aug 22, 2013 |
| Lavaca county → | — | 7 | 2 | Jul 26, 2001 |
| Burleson county → | — | 5 | 0 | Mar 21, 2005 |
| Runnels county → | — | 5 | 7 | Apr 15, 2016 |
| Taylor county → | — | 5 | 4 | May 24, 2022 |
| Brooks county → | — | 4 | 1 | Apr 25, 1989 |
| Grimes county → | — | 4 | 0 | May 20, 2005 |
| Jackson county → | — | 4 | 0 | Jul 11, 2001 |
| Tom Green county → | — | 4 | 2 | Mar 16, 2012 |
| Kent county → | — | 3 | 1 | Jun 8, 1993 |
| Stonewall county → | — | 3 | 1 | Oct 25, 2017 |
| Wharton county → | — | 3 | 0 | Jul 8, 1991 |
| Brazos county → | — | 2 | 0 | Mar 25, 2004 |
| Haskell county → | — | 2 | 1 | Jun 26, 2019 |
| Schleicher county → | — | 2 | 0 | Apr 4, 2011 |
| Callahan county → | — | 1 | 1 | Dec 5, 2006 |
| Fayette county → | — | 1 | 0 | Apr 6, 2006 |
| Jack county → | — | 1 | 0 | Sep 5, 2013 |
| Jones county → | — | 1 | 1 | Dec 6, 2013 |
| King county → | — | 1 | 0 | Apr 24, 2018 |
| Knox county → | — | 1 | 3 | May 25, 1990 |
| Scurry county → | — | 1 | 0 | Oct 4, 1982 |
All 227 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 |
|---|---|---|
| Queen City | 23 | 0 |
| Wilcox | 20 | 0 |
| Ellenburger | 10 | 0 |
| Yegua | 10 | 0 |
| Reklaw | 9 | 0 |
| Strawn | 7 | 1 |
| Wills Point | 7 | 0 |
| Austin Chalk | 5 | 0 |
| Frio | 4 | 0 |
| Caddo | 3 | 0 |
| Wolfcamp | 3 | 0 |
| Carrizo | 3 | 0 |
| Jackson | 2 | 0 |
| Coleman Junction | 2 | 0 |
| Canyon | 2 | 1 |
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 →
- 14.6K
- bbl oil, last 12 reported months
- —
- vs the 12 months before
- 0
- mcf gas incl. casinghead, last 12
- 525K
- bbl oil since reporting began
Oil, barrels
Last 12 months 14,587 · prior 12 110(+13161%)
Beyond the permit record
RRC wellbore file
Wells of record
- 85
- on the schedule
- 1
- producing
- 0
- shut in
- 0
- injection
- 0
- temp. abandoned
- 80
- plugged
How it got them
- 32
- permitted itself
- 37
- acquired from others
- 94
- 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 5
- 0
- permitted bbl/day, active
- 0
- bbl injected, last 12 reported months
- Jun 2025
- reported through
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 →
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 |
|---|---|---|
| Peach Creek (Austin Chalk)69882500 | 22 | 0 |
| Laredo (Lobo)52025500 | 7 | 0 |
| Christian (6800)18000500 | 5 | 0 |
| Rodriguez (Lobo 6)77850500 | 3 | 0 |
| Hollow Creek (Dog Bend)42233166 | 3 | 0 |
| Sylvester (Flippen)87812300 | 3 | 0 |
| Newark East (Barnett Shale)65280200 | 3 | 0 |
| Fant (Congl. Lo.)30190300 | 3 | 0 |
| Taylor County Regular88520001 | 2 | 1 |
| Lake Kirby51484001 | 2 | 0 |
| Chick-Inn N. (King)17596500 | 2 | 0 |
| Wildcat8001 | 2 | 0 |
P-5 organization report
As registered with the RRC. About the P-5 →
- Registration
- Status code Y
- Last filed Aug 4, 2025
- Oil operator
- Address
- P O Box 240
- Abilene, TX 79604
- (325) 668-6333
- Officers and agents
- Taliaferro, Scott Jr · President,secretary
Latest permits
NEWEST FIRST BY ISSUE DATE · FILED OR ON WELLS IT NOW OPERATES
| Permit | Seen | Issued | Operator | County | Lease / well | Depth | API |
|---|---|---|---|---|---|---|---|
| 916168 | Jul 21, 2026 | Jul 21, 2026 | TDC Engineering, Inc. | Nolan | Mrs Kilgore #1 | 7,000 | 35333769 |
| 915733 | Jun 15, 2026 | Jun 15, 2026 | TDC Engineering, Inc. | Nolan | Light Crude #1 | 7,000 | 35333768 |
| 907002 | Apr 1, 2025 | Apr 1, 2025 | TDC Engineering, Inc. | Nolan | Cherry Wright #1 | 6,473 | 35332638 |
| 907002 | Apr 1, 2025 | Apr 1, 2025 | TDC Engineering, Inc. | Nolan | Cherry Wright #1 | 6,473 | 35332638 |
| 901212 | Jul 15, 2024 | Jul 15, 2024 | L.C.S. Production Company | Fisher | North Wickham #1 | 4,770 | 15132808 |
| 880282 | May 24, 2022 | May 24, 2022 | TDC Engineering, Inc. | Taylor | Hallmark #1 | 5,000 | 44134664 |
| 878604 | Apr 5, 2022 | Apr 5, 2022 | TDC Engineering, Inc. | Taylor | Henson #1 | 5,000 | 44134658 |
| 854423 | Jun 26, 2019 | Jun 26, 2019 | TDC Engineering, Inc. | Haskell | Mule Creek #1A | 6,000 | 20732955 |
| 852521 | Apr 29, 2019 | Apr 29, 2019 | TDC Engineering, Inc. | Haskell | Mule Creek #1 | 6,000 | 20732953 |
| 839054 | Apr 24, 2018 | Apr 24, 2018 | TDC Engineering, Inc. | King | Springer '196' #1 | 7,000 | 26932977 |
| 832183 | Oct 25, 2017 | Oct 25, 2017 | TDC Engineering, Inc. | Stonewall | Springer '183' #1 | 4,000 | 43334144 |
| 814786 | Apr 15, 2016 | Apr 15, 2016 | TDC Engineering, Inc. | Runnels | Everett #1 | 5,200 | 39935505 |
| 813125 | Jan 29, 2016 | Jan 29, 2016 | TDC Engineering, Inc. | Runnels | Outlaw #1 | 5,200 | 39935501 |
| 774027 | Dec 6, 2013 | Dec 6, 2013 | TDC Engineering, Inc. | Jones | Stanley #1 | 5,030 | 25335144 |
| 769011 | Sep 5, 2013 | Sep 5, 2013 | TDC Engineering, Inc. | Jack | Roper #1 | 4,795 | 23737874 |
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/840400, documented in the API reference.