oilcity
Monthly Excess Returns of Oil City Petroleum, Inc. Stocks and the Market
Description
The oilcity  data frame has 129 rows and 2 columns. The sample runs from  
April 1979 to December 1989. 
This data frame contains the following columns: 
Value
| Oil | monthly excess returns of Oil City Petroleum, Inc. stocks. | 
| Market | monthly excess returns of the market. |