142286
At the end of 2008 the field still had 56 active oil wells , most of which were owned by Occidental Petroleum , and the field had an estimated 343,000 barrels of oil still recoverable with current technology .
 organization: Occidental Petroleum
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Occidental Petroleum 
Answer:
 organization: Occidental Petroleum