You're right.
I did slip somewhere, apparently flubbing a conversion from barrels to gallons (42 gallons/barrel). Your Florida number checks out (these figure are in barrels/year). So the approximately 92 million gallons of gas contained in the 200 million gallons of oil that leaked away would indeed last Florida about 4.4 days, not the 4.4 x 42 days I came up with.
I stand corrected.
Whether this justifies a judgment that the well is therefore useless is another matter. How many wells can you judge "miniscule" before the deficit adds up?