I don't believe that the non-resident state income tax is that big of a deal. I own 10,000 shares of EPD with annual income over $20,000. I have a negative balance in my capital account, so my K-1 reflects income in 30 or so different states. The biggest was Louisiana at about $850. The state tax calculation came out to $14. The next biggest was New Mexico. That came out to $6. The other states were $2 or less. I ignored all of those. With EPD, the state taxes are a nonissue.
If you are that worried about it, go to each states tax website, download the form and start filling it out. It takes about minutes per state. It's not that difficult.
