I've heard that only Citi and AmEX pull from Experian and Chase pulls from one of the other two? I checked my credit report with Experian and only Citi and AMEX pulls showed. However, I checked the pulls for my wife and all of the pulls including 3 for Chase also showed up on her Experian report.

We applied for the same credit cards lately but Chase pulled from various reports. So I guess Chase jumps around in respect to which company it pulls as well.