Media reports confirm U.S. lawmakers have reached a deal to extend the $1 per gallon biodiesel tax credit retroactively through 2020, Roth Capital analyst Craig Irwin tells investors in a research note. This three year extension was much better than the one year extension previously expected, says the analyst. He believes rendered fats pricing should firm on increased volumes purchased by biodiesel producers and sharing of the biodiesel tax credit. Irwin raised his price target for Darling Ingredients to $28 from $26 to reflect "improving long-term visibility." He keeps a Buy rating on the shares, which are up 5% to $26.54 in early trading.