123510
Companies that hold the oil and gas leases to his land , rights originally made possible by the Stock-Raising Homestead Act and the Mineral Leasing Act , are seeking to exercise those rights on his ranch .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 None