Source: Courtesy of Oklahoma State University
45. Malone Mitchell 3rd
> Land area owned: 273,000 acres
42. Babbitt Heirs
> Land area owned: 275,000 acres
Source: ktmoffitt / E+ via Getty Images
42. Jones Family
> Land area owned: 275,000 acres
Source: Courtesy of New Mexico Museum of Natural History and Science
42. Lee Family
> Land area owned: 275,000 acres
Source: alejomiranda / iStock Editorial via Getty Images
41. Killam Family
> Land area owned: 277,000 acres
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