How many oil and gas wells are in Oklahoma?

Oklahoma has 456,595 catalogued oil & gas wells on WellCensus: 130,079 active, 246,059 plugged & abandoned and 21,602 documented orphans.

How many orphaned wells does Oklahoma have?

21,602 wells in Oklahoma are documented orphans — unplugged with no solvent operator of record.

Chevron USA is the largest operator active in Oklahoma by total catalogued wells (65,303 across 15 states).

456,595 catalogued wellbores in Oklahoma, from the state regulator's registry plus the federal orphaned-well inventory.

Dataset updated October 2026 . Derived from public data sources.

Catalogued wells

456,595

Active

130,079

Plugged

246,059

Documented orphans

21,602

Largest oil & gas operators active in Oklahoma
Operator	Wells	Active	Plugged	States
Chevron USA	65,303	13,921	43,648	AL AR CA CO KS LA MI ND NM OH OK PA UT WV WY
Diversified Production	31,363	28,431	688	AL KY LA OH OK WV
Eog Resources	16,762	2,897	4,127	AR CA CO KS LA MI MS MT ND NM NY OH OK PA UT WV WY
Scout Energy Management	12,456	9,882	1,040	CO KS MT ND NM OK UT
Kerr Mcgee Oil & Gas Onshore	11,405	2,600	5,745	CO KS LA ND NM OK UT WY
Berry Petroleum	11,021	3,375	3,765	AR CA CO IL KS KY OK UT WY
Noble Energy	10,764	1,646	6,368	CA CO IL KS LA MT NM OK PA UT WV WY
Texaco	10,522	267	9,120	AL AR CA CO IL KS KY LA MI MS MT ND NY OH OK PA UT
Citation Oil & Gas	9,922	7,334	1,384	CO IL KS LA MS MT ND NM OK UT WY
Marathon Oil	8,999	2,695	5,360	AR CA CO IL KS KY LA MI MS MT ND NM OK PA UT WV WY

Well counts are the operator’s national totals; state placeholder records are excluded. See methodology.

Counties with 25 or more catalogued wells.