PLAINS GROUP HOLDINGS, L.P.

Plains GP Holdings owns a portion of PAA's general partner and incentive distribution rights ("IDRs"). IDRs entitle PAGP to receive increasing percentages of cash distributed by PAA. We completed our initial public offering in October 2013 and our shares are traded on the New York Stock Exchange under the symbol “PAGP.” Investors in PAGP receive a 1099, versus a K-1.