Exhibit 99.16 (Text of graph posted to Ashland Inc.'s website concerning APAC's 14-State Weighted Retail Diesel Price Index) APAC's 14-State Weighted Retail Diesel Price Index (cents per gallon) 2001 2002 2003 2004 2005 2006 2001-2005 Avg. ------ ------ ------ ------ ------ ------ -------------- January 149.26 113.00 146.95 152.19 193.28 243.96 150.93 February 146.71 112.80 163.90 153.88 197.00 244.37 154.86 March 135.85 120.37 167.25 158.18 215.48 252.16 159.43 April 138.11 127.71 150.70 162.00 222.99 269.41 160.30 May 144.73 127.42 142.26 165.42 214.93 283.18 158.95 June 143.23 125.11 138.35 164.39 226.63 159.54 July 133.89 126.73 139.27 167.71 233.24 160.17 August 135.50 129.17 143.88 178.34 243.34 166.05 September 143.93 137.26 141.76 187.75 277.05 177.55 October 129.99 143.41 144.01 208.91 311.07 187.48 November 121.61 138.17 143.86 210.43 251.66 173.14 December 113.97 139.79 144.64 197.90 241.06 167.47 Average 136.40 128.41 147.23 175.59 235.64 258.62 164.66