The distribution is based on the KMP distribution. If it's $1.36 per unit that's used to "buy" KMR shares based on the average price for the ten days preceding the ex-divy date. Lower price per unit equals more units for the money.
I hope the next time they come after KMR they do it 10 days before the exdivy date. That way we get more units (shares).
And it's called a distribution rather than a dividend because it doesn't come from GAAP earnings.
What MLP bases it's distribution on earnings?