Electric generating plants with a total combined capacity of 25 MW or greater purchased fossil fuel equivalent to 1.5 quadrillion Btu's in Nov. 98.9% of which was for steam-electric generation. Measured by their total heat content, fossil fuel purchases for steam-electric generation were up 1.7% from last month and up 11.6% from Nov. 1976. Deliveries of coal totaled 48.3 million tons, an increase of 8.2 million tons above shipments made during Nov. 1976. Oil purchases for steam-electric generation reached 39.6 million barrels this month, a decrease of 5.6 million barrels below shipments made in Nov. of last year. Gas deliveries to steam-electric units total 219.2 billion ft/sup 3/ up 6.6% from last year's level. In Nov., the price of coal averaged 101.7 cents per millin Btu, a rise of 17.4% over the average price of a year ago. The average price of all oil delivered to steam plants was 219.3, a rise of 6.2% compared to Nov. 1976. Steam gas purchases averaged 134.9 cents per million Btu, an increase of 19.3% over the Nov. 1976 level. The following tabulations highlight the relative changes in deliveries and prices of fossil fuels for steam-electric generation for Nov. 1976 and Nov. 1977.