RE:Optionsftp://ftp.pta-oil.com/Letter%20of%20Transmittal.pdf In the event that the aggregate amount of Cash Consideration that would, but for the adjustment provisions, be paid to Petroamerica Shareholders in accordance with the elections of such Petroamerica Shareholders pursuant to the Arrangement exceeds the Maximum Cash Consideration, then each holder of Petroamerica Shares that has elected to receive (or is deemed to have elected to receive) the Cash Consideration, in whole or in part, will receive cash in an amount equal to the result obtained when the Maximum Cash Consideration is multiplied by a fraction the numerator of which is the Cash Consideration requested by such holder (or deemed to have been requested by such holder) and the denominator of which is the aggregate Cash Consideration requested by all holders (or deemed to have been requested by all such holders) of Petroamerica Shares (defined herein as the "Adjusted Maximum Case Cash Consideration"), and each such holder of Petroamerica Shares will thereby be deemed to have elected to: (a) exchange the pro rata number (rounded down to the nearest whole number) of the holder’s Petroamerica Shares for the Adjusted Maximum Case Cash Consideration; and (b) exchange the remainder of their Petroamerica Shares for the Share Consideration.