TRGP · Targa Resources Corp.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $255.65 to $256.30, inclusive. The reporting person undertakes to provide to Targa Resources Corp., any security holder of Targa Resources Corp., or the staff of the United States Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (1) to this Form 4.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $241.01 to $241.67, inclusive. The reporting person undertakes to provide to Targa Resources Corp., any security holder of Targa Resources Corp., or the staff of the United States Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (1) to this Form 4.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $240.08 to $240.37, inclusive.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $239.041 to $240.00, inclusive. The reporting person undertakes to provide to Targa Resources Corp., any security holder of Targa Resources Corp., or the staff of the United States Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1) and (2) to this Form 4.

These shares are owned by the Pryor Trust, of which D. Scott Pryor and Marcy Gaye Pryor serve as co-trustees.

These shares are owned by the Pryor Trust, of which D. Scott Pryor and Marcy Gaye Pryor serve as co-trustees.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $230.01 to $230.195, inclusive.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $227.935 to $228.93, inclusive.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $228.95 to $229.92, inclusive.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $226.82 to $227.64, inclusive. The reporting person undertakes to provide to Targa Resources Corp., any security holder of Targa Resources Corp., or the staff of the United States Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1), (2), (3) and (4) to this Form 4.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $229.34 to $230.30, inclusive. The reporting person undertakes to provide to Targa Resources Corp., any security holder of Targa Resources Corp., or the staff of the United States Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1) and (2) to this Form 4.

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $230.385 to $230.525, inclusive.