OPERATORS · TEXAS · P-5 NUMBER 421166

Hydrocarbon Operating, Inc.

P-5 status
Active – Extension (X)
P-5 last filed
Jun 1, 2026
Based in
Corpus Christ, TX
Most permits, 12 months
Lavaca County

Hydrocarbon Operating, Inc. was issued 4 drilling permits in the past 12 months, after a quiet prior year, across 2 counties led by Lavaca with 3. 0% were horizontal.

None were issued in the past 90 days.

The RRC wellbore file lists 36 wells under its operatorship (12 producing, 3 shut in).

Lease reports credit it with 13.8K barrels of oil and 381K mcf of gas in the 12 months reported through April 2026, down 14% on the year before.

It holds 1 active disposal or injection permit.

28 drilling permits have been issued to this operator number since 1994; its P-5 organization report was last filed June 1, 2026.

4
permits, last 12 months
—
vs prior 12 months (0)
2
counties, 12 months
12
producing wells, of 36 of record
49
leases it reports
0%
horizontal, 12 months

WINDOWS ON THE RRC ISSUE DATE · COMPUTED NOV 8, 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.

88%
spud rate · 22 of 25 mature permits
35
median days permit to spud · middle half 14–67
0
spuds, last 180 days -100%
0%
canceled · 0 permits
3
expired undrilled
1
permits a year over 33 active years

Permits issued by month

LAST 60 MONTHS · BY ISSUE DATE

Last 12 months 4 · prior 12 0

01220222023202420252026

Counties

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

County12 moAll timeWellsLast
Lavaca county →3617May 15, 2026
Live Oak county →115Jul 21, 2026
Bee county →—126Aug 25, 2022
Webb county →—40May 15, 2019
Duval county →—20May 31, 1994
Goliad county →—10Sep 18, 1995
Jackson county →—10Mar 15, 1994
Nueces county →—11Nov 18, 1998

All 28 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 →

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 →

13.8K
bbl oil, last 12 reported months
-14%
vs the 12 months before
381K
mcf gas incl. casinghead, last 12
204K
bbl oil since reporting began

12 months through Apr 2026 381,481 · prior 12 540,032(-29%)

020K40K60K201820192020202120222023202420252026

Hydrocarbon Operating, Inc.: Gas by month.

Beyond the permit record

RRC wellbore file

Wells of record

36
in the wellbore file, 20 on schedule
12
producing
3
shut in
0
injection
4
temp. abandoned
16
plugged

How it got them

10
permitted itself
25
acquired from others
10
permitted, now run by others

Each count opens the wells it counts. Acquired means the well's permit names a different operator than the schedule does today; wells it permitted that others now run are in its permit history, marked with who runs them now. Transfers and operator numbers →

RRC UIC permits · H-10 reported volumes

Disposal and injection

1
active UIC permits of 1
1K
permitted bbl/day, active
0
bbl injected, last 12 reported months
Jun 2025
reported through

By county

Lavaca1 active1K bbl/d

All 1 permits, with volumes → · On the map →

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 →

Type12 moPrior 12All time
Recompletion3012
Drill1015
Reenter001

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.

P-5 organization report

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

Registration
Status Active – Extension (X)
Last filed Jun 1, 2026
Gas operatorOil operator
Address
555 N Carancahua St Ste 336
Corpus Christ, TX 78401
(361) 887-6655
Officers and agents
Calhoun, Brian S · Texas Resident Agent
Calhoun, Brian Seigal · President,treasurer
Calhoun, Sherilyn O · Secretary

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/421166, documented in the API reference.