Oil and Gas Journal (OGJ) sells an annual summary that lists refineries as a pdf. For a higher price you can get a spreadsheet. You can go state by state and refinery by refinery to select out those that have CatCracking.
You might try EIA.gov. They have graphs that show capacity by state and you can choose Fluid CatCracking capacity. You might be able to piece it together – sounds like a lot of work. I don’t recall seeing a downloadable refinery list or spreadsheet though.
If you strike out there, contact me. We sell a list.