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News of victory came again from the Qinghai Oil Field in the New Year : by the end of December of 97 , oil output reached 1.6 million tons .
 location: the Qinghai Oil Field; date: the New Year; date: the end of December of 97; quantity: 1.6 million tons
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 location: the Qinghai Oil Field; date: the New Year; date: the end of December of 97; quantity: 1.6 million tons