> ~$90 per quadrillion BTU I think this misreads the abbreviation MM BTU (where M in this case is the Roman numeral thousand or "mille" rather than the metric

> ~$90 per quadrillion BTU I think this misreads the abbreviation MM BTU (where M in this case is the Roman numeral thousand or "mille" rather than the metric million or "mega"). 1 MM BTU = 10^6 BTU, not 10^15. A therm is 10^5 BTU. Last month I paid $77 for 117 therms, or about 66 cents/therm. This would be $6.6 per MM BTU. By the way that was 126 ccf (ccf = 100 cubic feet) or 12600 cubic feet (357 cubic meters). As you say, $90 wholesale for something I'm used to paying less than $10 for, is a big increase.