Let's see....
Big Dipper (Spring Lake Amusement Park - Oklahoma City, OK) - burned down.
Little Dipper (Spring Lake Amusement Park - Oklahoma City, OK) - park closed
Ozark Wildcat (Celebration City - Branson, MO) defunct.
Python (Bush Gardens - Tampa, FL) removed
Zoomerang (Circus World - Haines City, FL) park closed
Florida Hurricane (Circus World - Haines City, FL) park closed
Revolution (Liberty Land - Memphis, TN) park closed
Big Bend (Six Flags Over Texas - Arlington, TX) removed
Texas Cyclone (AstroWorld - Houston, TX) park closed
Excalibur (AstroWorld - Houston, TX) park closed
XLR-8 (AstroWorld - Houston, TX) park closed
Greased Lightnin' (AstroWorld - Houston, TX) park closed
Nightmare (Frontier City - Oklahoma City, OK) Removed
Wabash Cannonball (Opryland USA - Nashville TN) park closed
Rock n' Roller Coaster (Opryland USA - Nashville, TN) park closed
Mini Rock n' Roller Coaster (Opryland USA - Nashville, TN) park closed
I think that's it.