544 sites account for 46% of the state's emissions.
Yet the article states, "A handful of operations are responsible for the vast majority of methane emissions."
Sounds like "a handful" to me. In as much as a metaphorical measurement can be accurate..
Extremely disproportionate, but not a vast majority.
The 0.2% is however good, in the sense that, it's probably easier/more efficient to make a few hundred huge changes instead of a hundred thousand small ones.