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Harris County, TX oil and gas wells

12,858 wells: 2,348 active, 9,148 plugged, run by 656 operators.

Harris County, TX ranks #30 among Texas counties by wells on record, with 1% of the state's 1,397,551 wells. 2,348 of its wells (18%) are active, below the statewide share of 27%. Another 384 are shut in or temporarily abandoned. Of the 11,849 wells here with a type on record, 58% are oil wells, 28% dry holes and 7% gas wells. Drilling records here go back to 1933. Of the 2,766 wells with a drilling date, 139 (5%) were drilled in 2016 or later, the most recent in 2026. 633 wells are listed as permitted or being drilled. 326 wells have been plugged since 2016 (counting wells with a plug date on record). 656 operators have wells here. The largest by active wells is TREK RESOURCES INC., with 90 active (4% of the county's active wells).

Figures from the Railroad Commission of Texas, updated 2026-10-17.

Top operators in Harris

OperatorActiveWells here
TREK RESOURCES INC.90270
P.O.&G. OPERATING LLC61344
HOUSTON PIPE LINE COMPANY LP4560
GAITHER PETROLEUM CORPORATION41108
TORTUGA OPERATING COMPANY32107
KINDER MORGAN TEJAS PIPELINE LLC2227
TANDEM ENERGY CORPORATION2080
CHEVRON U. S. A. INC.18316
EXXON17413
BALLARD EXPLORATION COMPANY INC.1648
AMOCO PRODUCTION CO.15113
AMERICO ENERGY RESOURCES LLC1343
SEITZ M. L. & SON1313
WRD OPERATING LLC1154
PETROTX OPERATING LLC1014
REDBIRD OILFIELD SERVICES CORP.914
BAKER ATLAS810
HUMBLE OIL AND REFINING CO.751
GWM OPERATING COMPANY LLC717
BEALL OIL COMPANY77
MORGAN ENTERPRISES INC.623
AMERADA PETROLEUM CORPORATION619
MAVERICK OIL COMPANY611
UNDERGROUND STORAGE LLC610
DAYLIGHT PETROLEUM LLC68

Wells

Not plugged · All wells · Plugged · Orphaned · Disposal (SWD) and injection

WellAPI / IDStatusTypeOperator
(no name) 3 1005157Active Oil—
(no name) 11 42-201-02222Active Oil—
(no name) 42-201-31668Permitted Unknown—
(no name) 42-201-31669Permitted Unknown—
(no name) 2 1006280Active Oil—
(no name) 2 1003357Active Oil—
(no name) 1 1003386Active Oil—
(no name) 1003969Active Oil—
(no name) 85 1003975Active Oil—
(no name) 7 1003980Active Oil—
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Harris County, TX well questions

How many oil and gas wells are in Harris County, TX?

12,858 wells are on record: 2,348 active, 384 shut in or temporarily abandoned and 9,148 plugged.

Who operates the most wells in Harris County, TX?

TREK RESOURCES INC., with 90 active wells and 270 wells on record here. The table above lists the top operators.

Are new wells still being drilled in Harris County, TX?

Yes. 139 wells were drilled in 2016 or later, the most recent in 2026, and 633 more are permitted or being drilled.