OPERATORS · TEXAS · P-5 NUMBER 840400
TDC Engineering, Inc.
- P-5 status
- Active (A)
- P-5 last filed
- Oct 16, 2025
- Based in
- Abilene, TX
- Most permits, 12 months
- Nolan County
Tdc Engineering, Inc. was issued 2 drilling permits in the past 12 months, versus 1 in the prior year, all in Nolan County. 0% were horizontal.
None were issued in the past 90 days.
The RRC wellbore file lists 89 wells under its operatorship (2 producing, 1 shut in).
Lease reports credit it with 17.2K barrels of oil and 0 mcf of gas in the 12 months reported through August 2026, versus 2.99K the year before.
201 drilling permits have been issued to this operator number since 1981; its P-5 organization report was last filed October 16, 2025.
- 2
- permits, last 12 months
- +100%
- vs prior 12 months (1)
- 1
- counties, 12 months
- 2
- producing wells, of 104 of record
- 4
- leases it reports · 162 ever reported on
- 0%
- horizontal, 12 months
WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 11, 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.
- 44%
- spud rate · 87 of 199 mature permits
- 18
- median days permit to spud · middle half 7–39
- 2
- spuds, last 180 days
- 1%
- canceled · 2 permits
- 110
- expired undrilled
- 4
- permits a year over 46 active years
Permits issued by month
LAST 60 MONTHS · BY ISSUE DATE
Last 12 months 2 · prior 12 1(+100%)
Counties
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 | 11 | 2 | Jul 21, 2026 |
| Webb county → | — | 77 | 16 | Apr 22, 1992 |
| Zapata county → | — | 27 | 0 | May 18, 1988 |
| Gonzales county → | — | 21 | 34 | Jun 18, 1996 |
| Fisher county → | — | 7 | 6 | Aug 22, 2013 |
| Lavaca county → | — | 6 | 2 | Jul 26, 2001 |
| Mitchell county → | — | 6 | 0 | Jun 8, 1994 |
| Runnels county → | — | 5 | 7 | Apr 15, 2016 |
| Taylor county → | — | 5 | 4 | May 24, 2022 |
| Grimes county → | — | 4 | 0 | May 20, 2005 |
| Tom Green county → | — | 4 | 2 | Mar 16, 2012 |
| Brooks county → | — | 3 | 1 | Apr 25, 1989 |
| Burleson county → | — | 3 | 0 | Mar 21, 2005 |
| Jackson county → | — | 3 | 0 | Jul 11, 2001 |
| Wharton county → | — | 3 | 0 | Jul 8, 1991 |
| Haskell county → | — | 2 | 1 | Jun 26, 2019 |
| Kent county → | — | 2 | 1 | Jun 8, 1993 |
| Schleicher county → | — | 2 | 0 | Apr 4, 2011 |
| Stonewall county → | — | 2 | 1 | Oct 25, 2017 |
| Brazos county → | — | 1 | 0 | Mar 25, 2004 |
| Callahan county → | — | 1 | 1 | Dec 5, 2006 |
| Fayette county → | — | 1 | 0 | Apr 6, 2006 |
| Jack county → | — | 1 | 1 | Sep 5, 2013 |
| Jones county → | — | 1 | 0 | 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 201 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 →
| Formation | Wells | Permitted last 3 yrs |
|---|---|---|
| Queen City | 16 | 0 |
| Wilcox | 14 | 0 |
| Reklaw | 9 | 0 |
| Ellenburger | 8 | 0 |
| Austin Chalk | 5 | 0 |
| Strawn | 4 | 0 |
| Yegua | 4 | 0 |
| Frio | 4 | 0 |
| Carrizo | 3 | 0 |
| Palo Pinto | 2 | 0 |
| Coleman Junction | 2 | 1 |
| Caddo | 2 | 0 |
| Navarro | 1 | 0 |
| Pecan Gap | 1 | 0 |
| Gunsight | 1 | 0 |
Production by month
PDQ LEASE REPORTS · REPORTED THROUGH AUG 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 162 leases it reported on; 94 are reported by other operators today; 64 are no longer on the schedule.How production is reported →
- 17.2K
- bbl oil, last 12 reported months
- +475%
- vs the 12 months before
- 0
- mcf gas incl. casinghead, last 12
- 593K
- bbl oil since reporting began
12 months through Aug 2026 17,170 · prior 12 2,987
TDC Engineering, Inc.: Oil by month.
Beyond the permit record
RRC wellbore file
Wells of record
RRC UIC permits · H-10 reported volumes
Disposal and injection
- 0
- permitted bbl/day, active
- 0
- bbl injected, last 12 reported months
- Sep 2025
- reported through
All 5 permits, with volumes → · On the map →
Permitted volume is a ceiling, not throughput. How to read it →
Operator of record and permit operator
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 →
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 | 26 | 0 |
| Laredo (Lobo)52025500 | 7 | 0 |
| Sylvester (Flippen)87812300 | 5 | 0 |
| Christian (6800)18000500 | 5 | 0 |
| Hollow Creek (Dog Bend)42233166 | 4 | 0 |
| Rodriguez (Lobo 6)77850500 | 3 | 0 |
| Fant (Congl. Lo.)30190300 | 3 | 0 |
| Newark East (Barnett Shale)65280200 | 3 | 0 |
| Taylor County Regular88520001 | 2 | 1 |
| Chick-Inn N. (King)17596500 | 2 | 0 |
| Lake Kirby51484001 | 2 | 0 |
| Wildcat8001 | 2 | 0 |
P-5 organization report
As registered with the RRC. About the P-5 →
- Registration
- Status Active (A)
- Last filed Oct 16, 2025
- Oil operator
- Address
- P O Box 240
- Abilene, TX 79604
- (325) 673-5024
- Officers and agents
- Taliaferro, Scott Jr · President,secretary
Latest permits
NEWEST FIRST BY ISSUE DATE · FILED OR ON WELLS IT NOW OPERATES
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/840400, documented in the API reference.