OPERATORS · TEXAS · P-5 NUMBER 101155

Mitsui E&P USA LLC

P-5 status
Active – Extension (X)
P-5 last filed
Mar 13, 2026
Based in
Houston, TX
Most permits, 12 months
Webb County

Mitsui E&P USA LLC was issued 4 drilling permits in the past 12 months, versus 9 in the prior year, all in Webb County. 100% were horizontal.

None were issued in the past 90 days.

The RRC wellbore file lists 36 wells under its operatorship (31 producing, 4 shut in).

20 drilling permits have been issued to this operator number since 2023; its P-5 organization report was last filed March 13, 2026.

4
permits, last 12 months
-56%
vs prior 12 months (9)
1
counties, 12 months
31
producing wells, of 36 of record
29
leases it reports
100%
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.

90%
spud rate · 18 of 20 mature permits
29
median days permit to spud · middle half 20–80
2
spuds, last 180 days +100%
0%
canceled · 0 permits
1
expired undrilled
5
permits a year over 4 active years

Permits issued by month

LAST 60 MONTHS · BY ISSUE DATE

Last 12 months 4 · prior 12 9(-56%)

012320222023202420252026

Counties

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

County12 moAll timeWellsLast
Webb county →41428Mar 25, 2026
Freestone county →—33Sep 8, 2025
Leon county →—33Oct 27, 2025

All 20 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 →

0
bbl oil, last 12 reported months
—
vs the 12 months before
17.1M
mcf gas incl. casinghead, last 12
59
bbl oil since reporting began

12 months through Apr 2026 17,092,492 · prior 12 21,293,380(-20%)

02M4M202420252026

Mitsui E&P USA LLC: Gas by month.

Beyond the permit record

RRC wellbore file

Wells of record

36
in the wellbore file, 36 on schedule
31
producing
4
shut in
0
injection
1
temp. abandoned
0
plugged

How it got them

12
permitted itself
24
acquired from others
0
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 →

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
Drill4920

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 Mar 13, 2026
Gas gatheringGas operator
Address
1300 Post Oak Blvd, Ste 1800
Houston, TX 77056
(713) 960-0023
Officers and agents
CT Corporation System · Other
Gomi, Kazuhiko · President,ceo, Board MGR
Martinez, Guillermo · Coo
Sunada, Tomohiro · Secretary,cso
Toyoda, Hiroshi · Secretary
Hayasaka, Akira · President
Ogawa, Takayuki · Director
Zornes, Karen · Filing Agent
All 10 on the P-5 →

Latest permits

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

PermitSeenIssuedOperatorCountyLease / wellDepthAPI
913148Mar 25, 2026Mar 25, 2026Mitsui E&P USA LLCWebbState Mid A #102HH13,00047945562
913149Feb 20, 2026Feb 20, 2026Mitsui E&P USA LLCWebbState Mid B #103HH13,00047945563
913137Feb 17, 2026Feb 17, 2026Mitsui E&P USA LLCWebbLindsay Ranch Unit #103HH13,00047945561
913201AmendmentAug 20, 2026Feb 12, 2026Mitsui E&P USA LLCWebbJustapor A #102HH14,00047945570
913201AmendmentFeb 12, 2026Feb 12, 2026Mitsui E&P USA LLCWebbJustapor A #102HH14,00047945570
913201Feb 12, 2026Feb 12, 2026Mitsui E&P USA LLCWebbJustapor A #102HH14,00047945570
911366AmendmentOct 27, 2025Oct 27, 2025Mitsui E&P USA LLCLeonJBC Ranch #1HH30,00028932220
911366AmendmentOct 27, 2025Oct 27, 2025Mitsui E&P USA LLCLeonJBC Ranch #1HH30,00028932220
911366Oct 27, 2025Oct 27, 2025Mitsui E&P USA LLCLeonJBC Ranch #130,00028932220
911366AmendmentOct 27, 2025Oct 27, 2025Mitsui E&P USA LLCLeonJBC Ranch #1H30,00028932220
910183Sep 8, 2025Sep 8, 2025Mitsui E&P USA LLCFreestoneLipsey A #2HH30,00016134872
909789Aug 26, 2025Aug 26, 2025Mitsui E&P USA LLCWebbState Edith B #104HH13,00047945438
909789AmendmentAug 26, 2025Aug 26, 2025Mitsui E&P USA LLCWebbState Edith B #104HH13,00047945438
909789AmendmentAug 26, 2025Aug 26, 2025Mitsui E&P USA LLCWebbState Edith B #104HH13,00047945438
909788Aug 13, 2025Aug 13, 2025Mitsui E&P USA LLCWebbState Edith A #103HH13,00047945437

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/101155, documented in the API reference.